Public evidence page

Soccer - Central midfielder

Sport

Sport: Soccer

Position: Central midfielder

Athletes' bodies

Elite female central midfielders typically have an athletic, relatively lean-to-muscular build suited to repeated running, ball progression, and frequent duels. Compared with defenders, they are usually modestly shorter/lighter on average, with sufficient trunk/shoulder stability for contact while maintaining mobility for acceleration, deceleration, and frequent change of direction. Body proportions often align with an “ectomorphic mesomorph / mesomorphic” mixed profile in published female soccer somatotype frameworks.

Cohort

Sex: Female

Level: Elite

Quick glossary

Prior: Model estimate before updating with the current evidence; the starting baseline.
Posterior: Model-updated estimate after combining prior evidence with observed data.
Standard deviation: Spread around the estimate; lower means tighter expected range.
Alignment: How well a goal/preference/injury profile matches this body pattern.

Measurements

Factor	Prior	Posterior	Success-impact	Reasoning behind prior	Prior estimate sources
Height	165 ± 5.8 cm	165 ± 5.8 cm	high	Bayesian estimate: start from elite female soccer anthropometric ranges described in reviews/standards, then shift downward modestly from “central defender/goalkeeper” expectations because central midfielders generally require less raw aerial size advantage than central defenders. SD reflects elite heterogeneity across leagues and tactical styles.	[1] [2]
Weight	60 ± 6.6 kg	60 ± 6.6 kg	high	Central midfield needs enough mass/strength for duels and efficient force transfer, but also benefits from leanness for repeat running. Mean and SD reflect an elite midfield cluster that is lighter than typical central defenders, with meaningful athlete-to-athlete variability.	[1] [2]
Arm span	166.5 ± 5.2 cm	166.5 ± 5.2 cm	medium	Central midfield benefits from some reach (interceptions/first-contact), but not to the same extent as center backs/keepers. Therefore arm span is set slightly above height, with moderate SD.	[3] [4]
Leg inseam	83 ± 3.6 cm	83 ± 3.6 cm	medium	Inseam is set to a plausible fraction of height for elite female athletes, supporting sprint mechanics and landing control typical of midfield movement demands.	[5]
Leg-torso ratio	1.46 ± 0.06 ratio	1.46 ± 0.06 ratio	medium	Central midfield favors efficient stride mechanics and rapid acceleration/cutting; a slightly higher leg:torso ratio is used to represent that while retaining enough torso control for balance and duels.	[6]
Shoulder-hip ratio	1.05 ± 0.05 ratio	1.05 ± 0.05 ratio	medium	A moderately elevated shoulder:hip ratio supports trunk control and upper-body stability during contact and ball shielding while keeping leg-dominant movement economy for repeated running.	[2]
Shoulder width	39.2 ± 2.6 cm	39.2 ± 2.6 cm	medium	A moderately broad upper frame supports trunk/shoulder stability during duels while preserving mobility. Central midfield doesn’t need the maximal upper-body breadth often prioritized for central defense, so it’s set between “average” and “robust.”	[7]
Torso length	58 ± 3.1 cm	58 ± 3.1 cm	medium	Central midfield benefits from a torso length that supports posture control during frequent acceleration/deceleration and ball-carrying while still allowing efficient hip mechanics.	[8]
Ankle circumference	22.4 ± 1.2 cm	22.4 ± 1.2 cm	low	Central midfield benefits from resilient lower-limb mechanics during repeated landings/cutting. Ankle circumference is set slightly above generic average, but marked low importance because it’s not a primary selector trait in most performance models.	[8]
Ape index	1.01 ± 0.04 ratio	1.01 ± 0.04 ratio	low	Central midfield requires some reach but not extreme limb proportions; ape index is set slightly above 1 with small SD.	[4] [9]
Foot length	25.1 ± 1 cm	25.1 ± 1 cm	low	Foot length is set to match a typical elite female height range for equipment/fit modeling rather than direct performance scoring.	[8]
Hand length	18.4 ± 0.8 cm	18.4 ± 0.8 cm	low	Hand length is not a major determinant for central midfield optimization, so it’s set from adult anthropometric priors consistent with the height target.	[8]
Pelvic bone width	27 ± 1.9 cm	27 ± 1.9 cm	low	Pelvic width is a weak direct performance driver, but a stable pelvis supports cutting, tackling/pressing contact tolerance, and trunk control. Values are set modestly above generic adult priors for an athletic elite profile.	[8]
Wrist circumference	16.4 ± 1 cm	16.4 ± 1 cm	low	Wrist circumference is mainly relevant to equipment/fit rather than central-midfielder performance; set from adult anthropometric priors.	[8]

Traits

Factor	Value	Impact	Reasoning	Sources
Muscle fiber profile	balanced	high	Central midfielders repeatedly perform high-force/fast actions (press triggers, duels, changes of speed) but also sustain extensive submaximal running. A balanced fast/slow advantage best matches that mixed intermittent pattern.	[10] [11]
Metabolic tendency	mesomorphic tendency	medium	A mesomorph tendency (athletic build with strength/efficiency potential) fits central midfield needs: enough mass/strength for duels and powerful transitions, without excessive energy-cost mass.	[11] [12]
Joint laxity	medium	medium	Central midfield requires repeated cutting, deceleration, and controlled landings in addition to contact tolerance. Medium laxity is best suited to balance stability for duels with sufficient mobility for change of direction.	[13]
Foot arch	neutral arch	low	Neutral arch type is a pragmatic default for midfielders: stable traction/force transfer for both sprinting and turning, without assuming a single arch morphology dominates performance.	[14]
Temperature tolerance	balanced	low	Central midfielders experience the same intermittent exertion pattern as other outfield roles and therefore do not strongly bias toward heat- or cold-specific tolerance in the absence of role-specific evidence.	[15]
Dominant side	no meaningful side advantage	low	While tactical setups can favor certain laterality matchups, there is not strong universal evidence that central midfield requires a specific dominant side advantage; Sporty optimum is therefore neutral.	[16]

Goals

Factor	Alignment	Reasoning	Sources
Build confidence	medium	As you get better as a central midfielder—reading the game, keeping possession, winning duels—confidence typically rises because you feel more in control of matches. But soccer also includes mistakes and blame (and midfielders can feel responsible for “linking” play), so confidence gains vary by coaching/team support. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17]
Build endurance	high	Central midfielders are repeatedly involved in play and often cover a lot of ground, so even with the stop-start nature of soccer, the position still strongly stimulates aerobic endurance. Evidence that recreational soccer can improve VO2max and cardiorespiratory fitness supports high alignment. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC4536283/?utm_source=openai))	[18] [19] [20]
Build strength and power	medium	The role includes duels, shielding, jumping/landing, and repeated acceleration, which does demand force. But soccer training alone—especially at the amateur level—may not provide enough structured progressive resistance for major strength gains, so strength/power improvement is more likely to be moderate unless you also add gym/plyometric work. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/11689745/?utm_source=openai))	[21]
Challenge myself	high	This role is demanding because you’re central to both offense and defense: you must keep moving, make decisions quickly, and handle frequent dueling and transitions. Amateur players usually find it challenging in a “stretching yourself” way that rewards effort and progression. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17] [22]
Compete and measure myself	high	Soccer naturally includes competition (matches, leagues, cups), and central midfielders can often track progress through practical measures like passing accuracy/decisions, touches in good areas, successful recoveries/duels, and coach ratings. Even if measurements aren’t perfect, the competitive feedback loop is strong. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17] [23]
Improve agility and coordination	high	The central midfielder role is a coordination challenge: you receive under pressure, turn/carry in tight space, time passes, and respond to changing threats while moving. That constant “move + decide + execute” pattern closely matches agility/coordination development. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17] [23] [24]
Improve balance and control	medium	Central midfielders are repeatedly changing direction, absorbing contact in duels, and stabilizing while turning and striking/passing—so balance is trained. But soccer is not primarily a balance-sport (like climbing or gymnastics), so the improvements are usually more “situational” rather than a focused, systematic balance program. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17]
Improve flexibility and mobility	low	Soccer involves plenty of dynamic motion (kicking, running mechanics, landing from jumps), but flexibility/mobility gains usually require specific stretching, mobility drills, or targeted flexibility training. Without that, most amateur improvement comes from fitness and skill rather than large range-of-motion changes. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/11689745/?utm_source=openai))	[21]
Improve general health and fitness	high	A central midfielder spends a lot of the match repeatedly running, changing pace, receiving/controlling the ball, and getting into duels, which creates a fairly complete whole-body workload (aerobic work from the many runs plus muscle work from repeated accelerations/turns and physical contests). That mix makes it one of the more “fitness-forward” roles in soccer for amateur players, so the goal is very likely to be reached with regular play. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC4536283/?utm_source=openai))	[18] [20]
Improve speed and explosiveness	medium	Central midfielders frequently sprint into space, press, and react quickly in the middle third—so you do get exposure to faster, more explosive movement. However, without targeted sprint mechanics/plyometrics or specific speed sessions, improvements may be slower than endurance/fitness gains. ([mdpi.com](https://www.mdpi.com/1424-8220/25/18/5825?utm_source=openai))	[18] [22]
Learn new skills and master technique	high	Central midfield development is strongly skill-based: first touch, passing range/weight, body positioning, scanning, timing of runs, and ball retention under pressure. Those are exactly the kinds of technique skills that improve over time with practice and coaching. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17] [23]
Lose weight	high	Because the central midfield role requires sustained total movement plus frequent bursts (accelerate, turn, press, recover), it tends to produce meaningful total energy expenditure during matches/training. Over time—assuming you’re eating with a goal in mind—this pattern is strongly conducive to weight loss compared with less continuous sports. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC4536283/?utm_source=openai))	[18] [25]
Make friends and feel a sense of belonging	high	Because soccer is highly team-based with regular training and match-day interactions, it’s a strong path to meeting people and building belonging. The central midfielder role increases your involvement in many plays, which often leads to more communication and shared moments with teammates. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17]
Reduce stress and feel better	medium	Regular soccer participation can improve mood and stress through physical activity plus team belonging and routine. Still, the central midfielder role doesn’t specifically add mental-health benefits beyond “being active in a team sport,” so the alignment is medium rather than high. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC4536283/?utm_source=openai))	[18] [25]
Spend time with people I care about	low	Even though you’re with teammates in a league, the central midfield role is usually too interrupt-driven (positioning, sprinting, pressing, recovery runs) for extended conversation during play. So it doesn’t match the “talk and catch up while practicing” requirement particularly well. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Midfielder?utm_source=openai))	[17]

Preferences

Factor	Alignment	Reasoning	Sources
Competition-focused environment	high	Soccer culture is strongly match- and result-oriented (scores, league standings, performance evaluation). Central midfield is also visible—your mistakes and successes often directly affect chances—so competition focus fits well.	—
Enjoys contact	medium	You don’t need to “love” heavy contact like in some collision sports, but you should be comfortable with regular physical challenges and shoulder-to-shoulder pressure. So it’s moderately aligned—contact is common, but it’s not the only purpose.	[26]
Flexible Time Table	medium	You can do some solo prep (ball mastery, passing against a wall, conditioning), but central midfield development is best with teammates (timing, press coordination, passing patterns) and you’ll want regular practices/matches. So flexibility exists, but it’s not as “plug-and-play” as fully individual sports.	—
Indoor setting	none	Standard soccer (the position and demands you’re describing) is an outdoor, field-based sport. Indoor soccer/futsal exists, but “central midfielder” in typical soccer is not primarily an indoor-controlled activity.	—
Long steady efforts	low	Even though midfielders have good endurance, the dominant pattern is intermittent (work/rest cycles, bursts, and reorganizing), not steady long-duration pacing like in distance running as the main identity of the activity.	[27] [28]
Low impact on joints	low	Central midfielders usually run a lot and change direction frequently while also making repeated accelerations and decelerations. That creates joint load (especially knees/ankles/hips), so it’s not naturally “low impact.”	[27]
Mostly individual	low	You will have frequent 1-v-1 duels, but the core job is linking teammates and making passes/cues that fit the team’s attacking and defensive plan. That makes it far more team-dependent than mainly individual training/success.	[29]
Non-contact	low	Central midfield includes frequent physical duels (shoulders-to-shoulders, tackling/pressing contacts). Even though rules limit dangerous contact, the position is not meaningfully “non-contact.”	[26]
Outdoor setting	high	Central midfield play is strongly tied to reading the whole field in motion—wide open space, weather/ball conditions, and variable game tempo outdoors. The role’s whole appeal (linking play, transitions, pressing) is very outdoors/field context aligned.	—
Playful recreational atmosphere	low	Even at amateur level, central midfield tends to be intense and mentally demanding (lots of running + repeated duels + constant decision-making). That usually fits a more serious “get after it” atmosphere than a purely playful, low-stakes one.	—
Routine and structure	medium	There is structure in training (drills for passing/pressing, tactical patterns, repeated small-sided games), but the match itself is less predictable. So you get some routine/format, yet outcomes and patterns shift constantly.	[30]
Short explosive efforts	high	Central midfield is full of short bursts: pressing to close space, sudden accelerations to support attacks, and quick changes of direction to win/keep possession. These are short, explosive efforts rather than long continuous exertion.	[27] [28]
Tactical and strategic	high	This position is a “decision hub”: where you stand, when you press, what passing lanes you open, how you respond after turnovers, and how you control tempo are all strategic. The role is heavily about reading situations.	[29]
Team environment	high	Central midfield is a “link” role inside the team’s shape. You’re involved in how your team builds attacks, presses, and transitions, so your effectiveness depends a lot on teammates’ movement and coordination, not just what you do alone.	[29]
Technique-heavy	high	Central midfield is typically a ball-progression and ball-retention role: passing quality, first touch, receiving under pressure, and timing of distribution matter a lot. You can’t do the linking job well without solid technique.	[29]
Variety and novelty	medium	Central midfield offers many different match situations (building up, breaking presses, defending transitions, set pieces depending on team). But it’s still a role with repeating core duties (spacing, receiving, distributing, pressing). Net: moderate variety.	[29]
Water environment	none	Soccer doesn’t involve water as part of the game environment for the central midfielder role.	—

Injuries

Risk

Factor	Value	Definition	Full reasoning	Sources
Achilles tendon pain (tendinopathy)	medium	Pain and irritation in the Achilles tendon at the back of the ankle.	Soccer generally exposes players to repeated calf/Achilles loading through running, acceleration/deceleration, and jumping/landing. Central midfield also tends to involve high running volume, increasing cumulative load—enough to make risk meaningful but not the very highest.	[31]
ACL injury	medium	A major ligament injury inside the knee, often linked to pivoting, landing, or sudden deceleration.	Soccer includes non-contact cutting/landing and sometimes contact mechanisms that produce ACL injuries. Midfielders perform frequent deceleration/cutting as they receive and progress the ball, giving meaningful but not necessarily the highest risk for ACL injury in the taxonomy; thus medium.	[32]
Ankle sprain	high	A stretched or torn ankle ligament, usually after the foot rolls awkwardly.	Soccer has a well-known burden of ankle sprains from non-contact landings and changes of direction. Central midfield involves frequent running and dueling, which increases exposure to these mechanisms. That supports a high risk level for ankle sprain.	[34]
Calf strain	low	A pulled or overloaded calf muscle, often felt during pushing off, sprinting, or jumping.	Central midfield sprinting could strain the calf, but the expected incidence is probably lower than the highest-risk categories. So low rather than medium.	[35]
Finger or hand impact injury	none	Pain from jamming, bending, or striking the fingers or hand during sport.	Central midfield does involve contact and occasional falls, so hand/finger trauma is possible, but it’s not typically a leading incidence category for this role at moderate frequency. Default to none.	—
General forearm overuse pain	none	Ongoing forearm pain from repeated gripping, lifting, or arm use when the exact tendon is unclear.	Forearm overuse pain in this injury taxonomy is mainly driven by repetitive hand/grip/extensor/flexor loading. Central midfield demands are dominated by running, kicking, and upper-body contesting rather than repetitive forearm-wrist use, so there’s no strong reason to expect meaningful risk.	—
General foot or ankle pain	medium	Ongoing foot or ankle pain when the exact structure or diagnosis is unclear.	Central midfielders generally have high running exposure, which can drive a range of overuse foot/ankle issues (tendons, joints, general overload). This supports medium risk.	[35]
General hip or groin pain	medium	Ongoing hip or groin pain when the exact structure or diagnosis is unclear.	Hip/groin pain in soccer is often linked to repeated acceleration/sprinting, kicking mechanics, and contact bracing. Given central midfield exposure to both running and duels, risk is medium.	[36]
General knee pain	medium	Ongoing knee pain when the exact structure or diagnosis is unclear.	Knee pain is common across soccer due to frequent impact, cutting, and change of direction. Central midfielders typically cover high distances and perform many directional changes, making knee pain risk meaningful (medium).	[35]
General lower-back pain	low	Ongoing lower-back pain when the exact source is unclear.	Central midfield includes repeated trunk loading and occasional falls/contacts, which can contribute to nonspecific low back pain. However, given the lack of strong position-specific evidence that it’s common/dominant for central midfield, it remains low.	[35]
General lower-leg pain	medium	Ongoing shin or calf pain when the exact diagnosis is unclear.	Running volume and repeated impact/braking create a broad risk for lower-leg overuse patterns. Central midfield typically has high distance covered, supporting medium risk for this broad category.	[35] [37]
General shoulder pain	none	Ongoing shoulder pain when the exact structure or diagnosis is unclear.	Upper-limb injuries do occur in soccer via contact/falls, but in this injury taxonomy and position framing, shoulder impingement/rotator cuff patterns are generally more associated with repetitive overhead sports. At moderate central midfield frequency, this defaults to none.	—
General wrist or hand pain	none	Ongoing wrist or hand pain when the exact structure or diagnosis is unclear.	Soccer loading of the wrist/hand is not repetitive enough at most positions (including central midfield) to make this a common overuse injury category. Risk none.	—
Golfer's elbow	none	Pain on the inside of the elbow linked to overload in the forearm tendons.	Central midfield involves kicking, running, jumping/landing, and defensive/dueling movements, with limited repetitive wrist/forearm flexor strain. Therefore risk is none rather than low.	—
Groin strain	medium	A pulled or irritated groin muscle, often felt in cutting, sprinting, or kicking movements.	Central midfield requires repeated high-speed actions and frequent duels, which can stress the adductors. This supports a medium risk rating.	[38]
Hip flexor strain	low	A strain or overload in the front-of-hip muscles that help lift the leg.	Central midfield does include sprinting and kicking mechanics that can involve hip flexors. However, within common soccer injury patterns, hip flexor strain is less prominent than several other categories, so risk is low.	[35]
Side-of-hip tendon pain	low	Irritation of the hip or gluteal tendons around the outer side of the hip.	Soccer does load the hip extensors, and midfield running can contribute to tendon overload. Still, without position-specific evidence to push risk higher, we keep this at low.	[37]
Lower-back disc irritation	none	Lower-back pain that may involve irritation of a spinal disc and sometimes pain spreading into the leg.	Without strong evidence that lumbar disc irritation is a common central-midfielder injury at moderate frequency, risk defaults to none.	—
Mechanical lower-back pain	low	Common lower-back pain related to movement, loading, stiffness, or irritated supporting tissues.	Plausible but not dominant: midfielders brace repeatedly, but without strong evidence for high incidence or central-midfielder specificity, risk stays low.	[35]
Meniscus injury	low	Irritation or tearing of the knee cartilage that helps cushion and stabilize the joint.	Meniscus injury mechanisms (planted-foot twist/contact) exist in soccer, and midfielders do twisting/cutting, but without evidence that central midfield specifically has high meniscus incidence in recreational/moderate participation, the safest rating is low.	[35]
Jumper's knee (patellar tendinopathy)	low	Pain and irritation in the tendon just below the kneecap.	Soccer has jumping/landing demands that can stress the patellar tendon. However, without central midfielder-specific data indicating high incidence, risk remains low.	[37]
Front-of-knee pain (patellofemoral pain)	low	Pain around or behind the kneecap that often flares with repetitive knee bending.	This is plausible given the general knee loading in soccer, but with limited position-specific evidence for central midfield dominance and within moderate participation assumptions, risk is kept low.	[35]
Heel pain (plantar fasciitis)	medium	Irritation of the tissue under the foot that often causes pain near the heel.	Soccer running volume and repetitive ground contact can overload the plantar fascia. Midfield roles often have higher continuous running exposure than some positions, so risk is meaningful but not the highest for this taxonomy.	[35]
Rotator cuff irritation	none	Pain and overload in the shoulder muscles and tendons that help control arm movement.	Soccer includes arm use for balance and occasional contact, but repetitive overhead loading is limited compared to sports where rotator cuff irritation is common. So risk is none.	—
Shin splints	medium	Exercise-related pain along the shin that often appears when impact load rises too quickly.	Soccer involves repeated running, braking, and kicking-related impacts that can overload the shin/calf complex. Midfielders’ high running exposure supports medium risk for shin splints.	[35]
Shoulder impingement-type pain	none	Shoulder pain that appears when tissues feel pinched or irritated during arm elevation.	Without strong evidence of soccer-specific impingement incidence in this role at moderate frequency, risk defaults to none.	—
Shoulder instability or dislocation	none	A shoulder that has slipped out, partly slipped out, or feels unreliable in vulnerable positions.	Compared to lower-limb injuries, shoulder instability/dislocation is much less common and not clearly position-defining for central midfield. So none.	—
Back stress reaction (spondylolysis)	none	A stress injury in the back often linked to repeated extension and rotation loading.	At moderate recreational central-midfielder participation, there’s not sufficient reason to expect this specific overuse spinal diagnosis as common; risk set to none.	—
Tennis elbow	none	Pain on the outside of the elbow linked to overload in the wrist and forearm tendons.	Central midfielders mainly load the legs via running/cutting and the shoulder/arm in brief contests; they don’t typically perform the repetitive wrist/forearm extensor action pattern associated with tennis elbow. So risk defaults to none.	—
Shin bone stress injury	low	Stress irritation in the tibia from repeated impact that has outpaced recovery.	Midfielders have lots of running exposure, which increases cumulative impact, but tibial stress injuries are still not the most common outcome at moderate recreational frequency. So low.	[35]
Wrist sprain	none	A stretched or irritated wrist ligament, often after a fall, impact, or awkward bend.	This is possible with falls/contact, but not clearly common enough as a central-midfielder-specific risk in moderate participation; none.	—
Wrist tendon pain	none	Irritation of wrist tendons from repeated gripping, racquet use, lifting, or supporting body weight.	Without repetitive overhead or grip-heavy patterns, wrist tendinopathy risk is not strongly supported; none.	—

Prevention

Factor	Value	Definition	Full reasoning	Sources
Achilles tendon pain (tendinopathy)	medium	Pain and irritation in the Achilles tendon at the back of the ankle.	While FIFA 11+ is not Achilles-specific in all trials, neuromuscular training improves ankle/knee mechanics and proprioception and has evidence for reducing injury prevalence in soccer contexts. Given moderate central-midfielder exposure to sprinting/jumping loads, that translates to a meaningful (medium) prevention effect for Achilles tendinopathy risk.	[31]
ACL injury	medium	A major ligament injury inside the knee, often linked to pivoting, landing, or sudden deceleration.	Because structured warm-ups have evidence for preventing injuries and improving knee/ankle control relevant to ACL mechanisms, central midfielders who do these as part of normal team training gain a moderate preventive effect. Not rated high because prevention depends on quality of implementation and the sport still includes high-risk moments; medium.	[33]
Ankle sprain	medium	A stretched or torn ankle ligament, usually after the foot rolls awkwardly.	FIFA 11+ and similar programs show injury-prevention benefits for ankle-related outcomes, but prevention is not complete because match play still produces high-risk moments. With only moderate practice frequency assumed (and not assuming extra rehab beyond normal team warm-up), this yields a medium prevention level.	[34]
Calf strain	none	A pulled or overloaded calf muscle, often felt during pushing off, sprinting, or jumping.	Without assuming extra calf-strengthening beyond normal practice, prevention is none.	—
Finger or hand impact injury	none	Pain from jamming, bending, or striking the fingers or hand during sport.	No injury-specific prevention effect is supported; none.	—
General forearm overuse pain	none	Ongoing forearm pain from repeated gripping, lifting, or arm use when the exact tendon is unclear.	Any prevention would be indirect at best; no evidence suggests midfielder training directly reduces forearm-specific overuse risk.	—
General foot or ankle pain	low	Ongoing foot or ankle pain when the exact structure or diagnosis is unclear.	Because “general foot/ankle pain” is broad and not specifically targeted by soccer training alone, and because match play both causes and conditions overload, the most defensible rating is low prevention.	—
General hip or groin pain	low	Ongoing hip or groin pain when the exact structure or diagnosis is unclear.	Without assuming dedicated adductor/hip prevention work, the net preventive effect of midfield play is uncertain, so low.	—
General knee pain	low	Ongoing knee pain when the exact structure or diagnosis is unclear.	Without assuming additional knee-focused rehab outside normal play, the preventive effect is uncertain, so low.	—
General lower-back pain	none	Ongoing lower-back pain when the exact source is unclear.	No evidence-supported, injury-specific prevention from midfielder soccer play alone; none.	—
General lower-leg pain	low	Ongoing shin or calf pain when the exact diagnosis is unclear.	Because this is a broad category and soccer both creates and conditions lower-leg stress, the preventive effect is limited; low.	—
General shoulder pain	none	Ongoing shoulder pain when the exact structure or diagnosis is unclear.	No clear injury-specific prevention pathway is supported; none.	—
General wrist or hand pain	none	Ongoing wrist or hand pain when the exact structure or diagnosis is unclear.	No evidence-based prevention link; none.	—
Golfer's elbow	none	Pain on the inside of the elbow linked to overload in the forearm tendons.	No injury-specific prevention link is supported between midfielder soccer play and golfer’s elbow.	—
Groin strain	low	A pulled or irritated groin muscle, often felt in cutting, sprinting, or kicking movements.	Without assuming specific adductor-focused rehab outside normal training, prevention can’t be rated as strong; so low.	—
Hip flexor strain	none	A strain or overload in the front-of-hip muscles that help lift the leg.	Prevention for this specific diagnosis would require targeted management of hip flexor/adductor and sprint mechanics beyond normal play; none.	—
Side-of-hip tendon pain	none	Irritation of the hip or gluteal tendons around the outer side of the hip.	No direct evidence for prevention of this specific condition from midfield participation alone; none.	—
Lower-back disc irritation	none	Lower-back pain that may involve irritation of a spinal disc and sometimes pain spreading into the leg.	Prevention would require specific back-loading tolerance strategies not assumed here; none.	—
Mechanical lower-back pain	none	Common lower-back pain related to movement, loading, stiffness, or irritated supporting tissues.	No evidence-supported, injury-specific prevention from central midfield play alone; none.	—
Meniscus injury	none	Irritation or tearing of the knee cartilage that helps cushion and stabilize the joint.	Meniscus injury prevention requires technique, strength, and sometimes specific neuromuscular strategies not assumed here; therefore none.	—
Jumper's knee (patellar tendinopathy)	none	Pain and irritation in the tendon just below the kneecap.	No strong evidence ties midfield play to patellar tendinopathy prevention; none.	—
Front-of-knee pain (patellofemoral pain)	none	Pain around or behind the kneecap that often flares with repetitive knee bending.	No specific prevention pathway is supported by the available evidence in this task context; none.	—
Heel pain (plantar fasciitis)	low	Irritation of the tissue under the foot that often causes pain near the heel.	Without assuming extra foot-specific mobility/strength work beyond team training, the preventive effect is limited; thus low.	—
Rotator cuff irritation	none	Pain and overload in the shoulder muscles and tendons that help control arm movement.	No injury-specific prevention link is established; none.	—
Shin splints	low	Exercise-related pain along the shin that often appears when impact load rises too quickly.	Without assuming extra off-field conditioning/load management beyond normal training, soccer alone can’t be counted as strong prevention. Therefore low.	—
Shoulder impingement-type pain	none	Shoulder pain that appears when tissues feel pinched or irritated during arm elevation.	No evidence-supported prevention pathway; none.	—
Shoulder instability or dislocation	none	A shoulder that has slipped out, partly slipped out, or feels unreliable in vulnerable positions.	Prevention would require shoulder stabilization training not assumed here; none.	—
Back stress reaction (spondylolysis)	none	A stress injury in the back often linked to repeated extension and rotation loading.	No targeted evidence/assumed program for prevention; none.	—
Tennis elbow	none	Pain on the outside of the elbow linked to overload in the wrist and forearm tendons.	No evidence-based, injury-specific preventive effect is indicated for this position.	—
Shin bone stress injury	none	Stress irritation in the tibia from repeated impact that has outpaced recovery.	Without assuming specific workload-management beyond normal team participation, prevention is none.	—
Wrist sprain	none	A stretched or irritated wrist ligament, often after a fall, impact, or awkward bend.	No injury-specific prevention effect is supported; none.	—
Wrist tendon pain	none	Irritation of wrist tendons from repeated gripping, racquet use, lifting, or supporting body weight.	No evidence-supported prevention pathway; none.	—

Heal

Factor	Value	Definition	Full reasoning	Sources
Achilles tendon pain (tendinopathy)	low	Pain and irritation in the Achilles tendon at the back of the ankle.	Achilles tendinopathy typically heals with symptom-guided load management and tendon-specific rehab. Regular soccer play may keep circulation/mobility but is not reliably a positive healing intervention; so the expected net effect is low rather than none.	—
ACL injury	low	A major ligament injury inside the knee, often linked to pivoting, landing, or sudden deceleration.	ACL healing often requires structured rehab and sometimes surgery; normal continued play is unlikely to be a positive healing intervention. If an athlete is managing symptoms and training is cleared, there may be slight benefit for general fitness, so low rather than none.	—
Ankle sprain	low	A stretched or torn ankle ligament, usually after the foot rolls awkwardly.	Healing after sprain typically needs progressive rehab and protection. Without assuming targeted rehab beyond normal play, continued soccer is more likely to delay recovery if symptoms persist—so only a low (small chance of benefit if symptoms are mild) positive healing level is assigned.	—
Calf strain	none	A pulled or overloaded calf muscle, often felt during pushing off, sprinting, or jumping.	Calf-strain recovery depends on controlled loading and rehab; normal play alone is not a reliable positive healing intervention; none.	—
Finger or hand impact injury	none	Pain from jamming, bending, or striking the fingers or hand during sport.	Without targeted hand rehab and protection assumptions, no positive healing effect is assigned; none.	—
General forearm overuse pain	none	Ongoing forearm pain from repeated gripping, lifting, or arm use when the exact tendon is unclear.	Without forearm-specific load management/rehab, continued midfield play isn’t expected to improve recovery from forearm overuse pain.	—
General foot or ankle pain	none	Ongoing foot or ankle pain when the exact structure or diagnosis is unclear.	For many foot/ankle overuse conditions, symptom-guided load modification is a key driver of healing. Normal midfield play is not guaranteed to be a positive healing intervention, so none.	—
General hip or groin pain	none	Ongoing hip or groin pain when the exact structure or diagnosis is unclear.	Given the assumption of only normal soccer participation (no added rehab program), there’s no solid basis to rate healing from soccer as a positive intervention for this broad condition; none.	—
General knee pain	none	Ongoing knee pain when the exact structure or diagnosis is unclear.	Knee pain healing depends strongly on diagnosis and load management; normal soccer participation alone is not a reliable positive healing intervention across this broad category, so none.	—
General lower-back pain	none	Ongoing lower-back pain when the exact source is unclear.	Without assuming specific graded rehab or back-focused exercises, normal play is unlikely to be a consistent positive healing intervention; none.	—
General lower-leg pain	none	Ongoing shin or calf pain when the exact diagnosis is unclear.	Healing depends on diagnosis and load management; normal play is not a guaranteed positive healing intervention across this broad category, so none.	—
General shoulder pain	none	Ongoing shoulder pain when the exact structure or diagnosis is unclear.	Without shoulder-focused rehab assumptions, continued play isn’t a reliable healing intervention; none.	—
General wrist or hand pain	none	Ongoing wrist or hand pain when the exact structure or diagnosis is unclear.	Without targeted treatment/rehab, no positive healing effect is expected; none.	—
Golfer's elbow	none	Pain on the inside of the elbow linked to overload in the forearm tendons.	Healing would require tendon-focused rehab and load management; midfield training alone isn’t a dependable healing intervention.	—
Groin strain	none	A pulled or irritated groin muscle, often felt in cutting, sprinting, or kicking movements.	Groin-strain recovery depends on progressive, symptom-guided loading. Normal soccer participation alone is not a reliable positive healing intervention; none.	—
Hip flexor strain	none	A strain or overload in the front-of-hip muscles that help lift the leg.	Without targeted load management/rehab assumed, normal soccer isn’t expected to provide positive healing for hip flexor strain; none.	—
Side-of-hip tendon pain	none	Irritation of the hip or gluteal tendons around the outer side of the hip.	Without assuming tendon-focused rehab beyond normal play, positive healing effect is not supported; none.	—
Lower-back disc irritation	none	Lower-back pain that may involve irritation of a spinal disc and sometimes pain spreading into the leg.	Healing requires diagnosis-specific load management/rehab; normal play alone is not expected to provide positive healing; none.	—
Mechanical lower-back pain	none	Common lower-back pain related to movement, loading, stiffness, or irritated supporting tissues.	Without symptom-guided graded activity planning beyond normal soccer, positive healing is not assured; none.	—
Meniscus injury	none	Irritation or tearing of the knee cartilage that helps cushion and stabilize the joint.	Meniscus healing depends on injury type and rehab; normal play is not a dependable positive healing intervention, so none.	—
Jumper's knee (patellar tendinopathy)	none	Pain and irritation in the tendon just below the kneecap.	Without assuming symptom-guided tendon loading beyond normal play, there’s no solid basis for a positive healing effect; none.	—
Front-of-knee pain (patellofemoral pain)	none	Pain around or behind the kneecap that often flares with repetitive knee bending.	Healing usually requires tailored mechanics/strength and symptom-guided load management, not assumed here; none.	—
Heel pain (plantar fasciitis)	none	Irritation of the tissue under the foot that often causes pain near the heel.	Plantar fasciitis healing commonly depends on symptom-guided load reduction and targeted rehab. Normal play is unlikely to reliably accelerate healing, so none.	—
Rotator cuff irritation	none	Pain and overload in the shoulder muscles and tendons that help control arm movement.	Tendon healing generally requires symptom-guided strengthening and activity modification; not assumed here. So none.	—
Shin splints	none	Exercise-related pain along the shin that often appears when impact load rises too quickly.	Shin splints are load-sensitive; without assumed load reduction/rehab beyond normal soccer, positive healing isn’t reliable, so none.	—
Shoulder impingement-type pain	none	Shoulder pain that appears when tissues feel pinched or irritated during arm elevation.	Impingement recovery usually needs targeted rehab/load management; not assumed. So none.	—
Shoulder instability or dislocation	none	A shoulder that has slipped out, partly slipped out, or feels unreliable in vulnerable positions.	Without assuming that kind of intervention, there’s no basis for positive healing from midfield play; none.	—
Back stress reaction (spondylolysis)	none	A stress injury in the back often linked to repeated extension and rotation loading.	Without assuming that kind of management and because continued play could aggravate stress reactions, healing effect is none.	—
Tennis elbow	none	Pain on the outside of the elbow linked to overload in the wrist and forearm tendons.	Without additional tendon rehab and symptom-guided load modification, normal soccer play isn’t expected to improve healing.	—
Shin bone stress injury	none	Stress irritation in the tibia from repeated impact that has outpaced recovery.	Stress injury healing typically requires substantial load reduction and rehab progression; normal play is not expected to help, so none.	—
Wrist sprain	none	A stretched or irritated wrist ligament, often after a fall, impact, or awkward bend.	Healing depends on immobilization/protection and rehab; normal soccer play isn’t a positive healing intervention; none.	—
Wrist tendon pain	none	Irritation of wrist tendons from repeated gripping, racquet use, lifting, or supporting body weight.	Without targeted rehab/load management, no positive healing effect is assumed; none.	—

Past-sport transfer logic

Past sport	Average correlation (success)	Std dev	Correlation reasoning	Correlation sources
american-football-defensive-back	0.4	0.2	Defensive back success should correlate moderately positively with central midfielder success because both roles require strong athleticism, repeated duels, and quick adjustment/reactive movement across the pitch. However, central midfielders are defined by soccer-specific technical execution (receiving, passing, progressive ball movement) and a different decision loop tied to possession/tempo, which defensive backs do not develop to the same degree. These skill specificity gaps keep the correlation from being very high, but not near zero because the athletic/defensive qualities and tactical learning environment overlap.	[39] [40] [41] [42]
american-football-line-player	0.23	0.13	We compare PAST success in American football as a line player (mass/leverage/power; short-area force in collision-heavy, opponent-driven bursts) with FUTURE success as a soccer central midfielder (central linking role requiring repeated running at high intensity, ball progression, duels, and tactical decision-making). Skill/ability overlap that increases correlation: - Both are interactive, high-pressure environments where fast perception/decision-making and coordinated movement under pressure matter. - Football line excellence suggests a strong general perceptual/visual-reaction substrate and pressure tolerance. Major mismatch that reduces correlation: - Central midfield performance is dominated by soccer-specific action systems: ball progression/control, passing/receiving under pressure, and role-specific locomotor demands (repeated high-intensity actions and recovery patterns) that differ from football line engagement mechanics. Therefore, carryover should be positive but only moderate, consistent with transfer theory that limits prediction when affordances/action systems diverge. A Bayesian point estimate lands at r ≈ 0.23 with substantial uncertainty (≈0.13).	[43] [44] [45] [46]
american-football-linebacker-tight-end	0.22	0.12	Linebacker/tight end success should correlate moderately with central midfielder success because both are demanding, high-tempo roles that require: frequent movement through traffic, rapid reading of plays, physical dueling/contact tolerance, and maintaining coordination while changing direction at speed. However, a central midfielder’s outcome is heavily constrained by soccer-specific determinants: first touch, passing execution (distance and angle), receiving under pressure, scanning while carrying, and tactical positioning/tempo management in a continuous ball-in-play environment. LB/TE training focuses far more on tackling/blocking leverage and short tactical bursts than on the repeated, precise ball-handling and passing mechanics that dominate midfield effectiveness. So carryover should be positive but capped: athletic/competitive and defensive physical skills transfer somewhat, but soccer ball technique and midfield technical-tactical patterns limit how strongly past football performance predicts central midfield success.	[47] [48] [49]
american-football-quarterback	0.41	0.12	We estimate the correlation between being successful as an American football quarterback and being successful as a soccer central midfielder, excluding physique/proportional traits. Why it’s moderately high (raises correlation): - Shared perceptual-cognitive core: QBs and central midfielders both repeatedly scan, anticipate pressure/space, and select the next action that best progresses the team. - Ball-progression/distribution similarity (at the role level): Both positions are “linkers” that decide how to move the ball toward advantage—QB via designed plays/throws, CM via passing/advancing/controlling tempo. - Learning/coordination under constraints: QBs have training for making quality decisions quickly while being pressured—this plausibly accelerates CM learning of decision-speed and scanning habits. Why it’s not very high (lowers correlation): - Action-affordance mismatch: the technical execution differs fundamentally (throwing mechanics, pocket movement vs receiving angles, dribbling touches, passing with different body orientation, and maintaining possession through continuous contact). - Central midfield requires continuous engagement + specific foot skills: much of “success” in CM is tied to soccer-specific technical repertoire (first touch, passing weights, off-ball movement) that QB skill doesn’t directly provide. - Decision transfer attenuates across dissimilar sports: even when both are team/space/decision roles, sports rules and available actions differ. Bayesian calibration: start from a dissimilar-sport baseline for transfer around ~0.30–0.35, then move upward because QB↔CM shares role-like demands (vision/tempo/ball progression). Literature suggests partial transfer rather than near-complete. That yields ~0.41 with ~0.12 uncertainty reflecting large variation by how much prior soccer (youth club, passing/ball mastery) the person already has.	[50] [51] [52] [53] [54]
american-football-receiver-running-back	0.24	0.14	Receiver/running back performance should correlate positively with central midfielder success because both roles require repeated high-intensity movement, spatial awareness, and reacting to where the play is developing. The WR/RB background also suggests comfort with one-on-one traffic and maintaining balance while moving fast. However, central midfield performance depends strongly on soccer-specific technique (ball control with both feet, passing and receiving under pressure, tempo modulation) and on role-specific tactical routines (positioning for progressive passes, cover/pressing shapes). WR/RB roles train open-field movement and ball-tracking more than precise ball-at-foot control and soccer passing timing. So the carry-over should be moderate rather than high: around the mid-0.2s with meaningful uncertainty.	[55]
athletics-distance	0.13	0.05	Distance running success should relate positively to later success as a soccer central midfielder, but only modestly. Central midfield success requires endurance/work-rate and the ability to repeat efforts while maintaining quality, which distance training supports (aerobic economy, pacing, fatigue resistance, and training discipline). However, midfielder success is also strongly driven by soccer-specific technical and perceptual skills—ball first touch/carrying under pressure, passing timing and accuracy, receiving/turning in traffic, and dueling/tackling mechanics—whose technique overlap with distance running is limited. Balancing these factors yields a plausible mean correlation around 0.13 with moderate uncertainty.	[56]
athletics-jumps-high-jump	0.2	0.12	High-jump performance should correlate only modestly with central midfielder success. There is meaningful technique-adjacent overlap: explosive leg power and excellent landing/body control help with duels, aerial contests, and maintaining balance while changing direction. However, central midfield performance is largely driven by open-skill soccer abilities—ball progression via passing/first touch, reading space, and making rapid decisions under pressure—plus a very different continuous movement pattern (repeated running, turning, and tackling). Because these soccer-specific perceptual and technical components are largely absent from high-jump training, the overall correlation remains modest and highly variable.	[57] [58] [59] [60]
athletics-jumps-long-triple-jump	0.17	0.13	Long jump/triple jump performance reflects explosive lower-body power and elastic stiffness plus strong coordination, which can provide a modest athletic head start for a central midfielder’s repeated sprinting, acceleration bursts, and body control in duels. However, central midfield success relies heavily on soccer-specific learned skills: ball control, passing technique, dribbling/turning mechanics, tactical decision-making, and specific defensive/tackling execution. Because those core skills do not arise from jumping training, the expected carry-over is small but clearly positive with substantial individual variability.	[61] [62] [63]
athletics-jumps-pole-vault	0.18	0.1	Pole vault success should correlate moderately with soccer central midfielder success because both reward explosive lower-body power, strong coordination, balance, and rapid re-stabilization after complex movements—helpful for repeated accelerations, duels, and transition running. However, midfielder performance is strongly driven by soccer-specific technical and perceptual skills (ball control/passing/receiving, off-ball positioning, reading opponents) and contact/tackling mechanics that pole vault does not train. Pole vault’s distinctive motor program (pole plant/inversion/landing constraints) has limited direct overlap with the midfielder’s core tasks. Net effect: a small-to-moderate positive correlation, plausibly in the high-teens to low-20s range, with substantial variance depending on how much soccer technical work the athlete already has or develops after switching.	[64] [65] [66]
athletics-middle-distance	0.22	0.08	Athletics middle distance and soccer central midfield share meaningful learned locomotion determinants: running economy, fatigue resistance, and pacing/effort distribution across long durations. Those support repeated-match running and maintain movement quality for midfield. However, central midfielder success is dominated by soccer-specific technical and perceptual skills—ball progression (first touch, passing, dribbling/turning) and tactical reads for duels/pressing—which have limited overlap with middle-distance running technique. With proportion-based traits excluded, the carry-over remains modest but clearly positive, around ~0.22.	[67] [68] [69] [70] [71] [72]
athletics-sprints-hurdles	0.24	0.1	Sprints and hurdles should correlate moderately with soccer central midfielder success because the role requires frequent high-intensity running, acceleration/deceleration, and repeated burst capacity that sprint/hurdle athletes typically possess. However, central midfielders also rely strongly on soccer-specific technical skill (first touch, passing quality/pace, dribbling, and receiving under pressure) and tactical decision-making, which are not trained in sprint/hurdle events. So the overall expected carry-over is positive but not high, with substantial spread depending on how much the athlete also develops soccer ball skills and game-reading.	[73] [74] [75] [76]
athletics-throws-discus	0.18	0.07	Central midfielder performance depends on a large soccer-specific skill set: ball control and passing mechanics under pressure, first touch, dueling technique, scanning/decision-making, and repeated high-intensity running with game-specific constraints. Those determinants are not trained by discus. However, discus performance does indicate transferable athletic qualities relevant to midfield play—rotational strength, trunk/hip sequencing, dynamic balance, and ability to generate and redirect force quickly—which can aid acceleration, change of direction, and maintaining body control in duels. Because success is a mix of sport-specific soccer skills and general athletic substrate, the relationship should be positive but capped. A plausible Bayesian estimate is ~0.18 average correlation with std dev ~0.07, reflecting wide variation in how much soccer-specific training overlaps with throwing specialization.	[77] [78] [79]
athletics-throws-hammer-throw	0.1	0.06	Hammer throw success indicates strong whole-body coordination, dynamic balance, and efficient force production. These can help a central midfielder with athletic movement quality (accelerating/stopping, maintaining balance through duels, and learning new movement patterns). However, central midfielder performance is heavily determined by soccer-specific interaction skills: ball first touch, passing/receiving timing, dribbling, reading the play, and repeated reactive movements in possession/without possession. Hammer throw’s implement-leverage rotational technique does not train these ball-and-opponent interaction determinants. Therefore the expected correlation is small but positive, around the 0.1 range.	[80] [81]
athletics-throws-javelin	0.12	0.08	Javelin success is correlated with strong explosive whole-body coordination and effective kinetic-chain sequencing (legs→trunk→shoulder/arm), plus upper-body power and a training habit of repetitive technique refinement. A central midfielder can benefit from some of these general athletic qualities: burst power for duels, coordinated movement when accelerating or changing direction, and a foundation for learning technical skills quickly. However, central midfield performance depends much more on soccer-specific learning and continuous perceptual-motor loops: first touch with feet, ball progression and passing accuracy, scanning and decision-making while moving, press/duel timing, and repeated stop–start running patterns tied to field positioning. Javelin’s core technique (approach-to-throw shoulder/arm release) does not directly train these foot-based timing and ball-control mechanisms. So the overall carry-over should be small but slightly positive (low teens), with notable variation depending on how much soccer ball skill the athlete already has or develops.	[82]
athletics-throws-shot-put	0.17	0.1	Shot put success reflects maximal whole-body power, trunk bracing, and good coordination under explosive effort. These qualities can transfer meaningfully to soccer central midfield for the physical side of the role: acceleration bursts, stabilization during duels, and ability to generate force quickly while running. However, central midfielder effectiveness is heavily determined by soccer-specific learned skills—ball progression (receiving/passing first touch), dribbling and carrying under pressure, tackling/jockeying technique, and tactical decision-making in a continuously changing environment. Shot put does not train these perceptual-motor and ball-interaction determinants. Therefore the expected correlation is positive but modest, with substantial individual variation depending on prior soccer exposure and how quickly the athlete acquires midfielder-specific technique and decision-making.	[83] [84] [85] [86]
badminton	0.05	0.03	Badminton should have a small positive correlation with soccer central midfielder success. Shared components include fast visual tracking, quick decision timing, and efficient multi-directional movement/repositioning. But central midfielder performance is strongly shaped by soccer-specific technique and cognition: controlling a ball on the ground at speed, passing/receiving angles, dribbling mechanics, defensive and offensive tactical triggers, and duel/tackle technique under soccer contact. Those are not directly developed by badminton. Therefore the expected correlation remains modest—around ~0.02–0.08 with an average near ~0.05.	[87]
baseball-catcher	0.25	0.12	Baseball catcher success should have a noticeable but limited positive relationship with soccer central midfielder success. Shared transferable skill components: - Ball/space perception: tracking an incoming ball early and anticipating where it will go. - Quick decision-making under pressure: reacting quickly when the play breaks. - Technical composure: executing fundamentals cleanly despite crowding and error costs. - Organization/role responsibility: central midfielders and catchers both act as connectors who influence the next phase of play. Why it isn’t higher: - Central midfield success depends strongly on soccer-specific technique: first touch on the ground, passing angles with the feet/instep, ball progression under pressure, and receiving while moving. - Midfield requires sustained, repeated movement patterns (including duels and continuous scanning while running) that are different from catcher’s episodic crouch/receive/block/throw sequences. - Tactics/positioning in soccer (press triggers, spacing, pivot/third-man patterns) are sport-specific and not trained by catcher receiving/blocking duties. So the carryover is modest: strong catchers may adapt faster to soccer due to anticipation and technical discipline, but midfielder-level performance still needs substantial new soccer technique and movement-tactical learning. Variability should be fairly high across individuals.	[88]
baseball-field-player	0.28	0.12	Baseball field players and soccer central midfielders overlap mainly in perceptual-cognitive skills: watching the ball/play develop early, anticipating where pressure or space will appear, and reacting quickly while moving. They also share repeated-effort participation (involvement in many sequences, not just isolated actions). However, central midfielder success is strongly driven by soccer-specific technique: receiving and passing with feet under pressure, dribbling/turning mechanics, dueling and defensive positioning according to soccer rules, and tactical coordination (third-man runs, tempo control, build-up/pressing schemes). Baseball fielding doesn’t train those ball-foot motor patterns. Because of that, the carryover should be moderate—not low—since the “read and react” component is meaningful. But it should not be high because the motor program for ball progression in soccer (feet, passes, first touch) is largely new. A plausible average is ~0.28 with substantial variability (~0.12 std dev), higher for athletes who also develop soccer fundamentals (or have prior striking/foot-contact practice) and lower for those who don’t.	[89] [90] [91]
baseball-pitcher	0.1	0.07	Pitcher → soccer central midfielder should have only a small-to-modest positive carryover. Shared transferable elements include (a) tracking a fast moving ball/projectile, (b) timing and executing a practiced, precise action under pressure, and (c) training discipline for repeatable technical execution. However, central midfield is dominated by soccer-specific technical and tactical demands: first touch, dribbling/turning, passing/receiving with the feet in continuous movement, scanning/positioning, dueling/pressing mechanics, and distributing play across phases. Pitching’s key mechanics (overhand throwing delivery and pitch-sequence thinking) don’t map directly onto those. With body-proportion/trait effects excluded, the plausible average is around ~0.10 with moderate uncertainty (std dev ~0.07).	[92] [93] [94]
basketball-big	0.33	0.14	The correlation is expected to be modest. Basketball Big carries over reasonably well to a soccer central midfielder in terms of spatial/strategic awareness, handling pressure while contested, and learning to play “in the middle” of the action. However, the decisive determinants for a central midfielder are highly soccer-specific: first touch, dribbling/carrying, and passing/tackling systems with the ball moving on the ground. Excluding body-proportion effects, these mismatches prevent the correlation from becoming high, keeping it in the low-to-mid 0.3 range.	[95] [96]
basketball-guard	0.35	0.18	Basketball guards and soccer central midfielders share important transferable skill elements: quick scanning and decision-making, managing pace, positioning to receive and progress the ball, and coordinated movement while controlling a fast-moving object under pressure. That creates a moderate positive association for overall ‘creative ball-moving’ ability and learning speed. However, soccer central midfield performance is strongly determined by soccer-specific technique: first touch and ball control with feet, passing/receiving angles in tight spaces, dribbling with the ball on the ground, and defensive dueling/tackling mechanics. Basketball guard play trains ball-handling and passing timing with hands plus shooting mechanics, which only partially map to foot-based control and soccer contact. Excluding physique/proportion effects, the remaining overlap supports a moderate correlation, but not high. Hence an average around 0.35 with substantial uncertainty.	[97] [98]
basketball-wing	0.18	0.11	Transfer from basketball wing success to soccer central midfielder success should be modestly positive. The strongest carry-over is perceptual/decision-making and passing/timing under pressure, plus general spatial positioning for linking play. However, central midfield performance depends heavily on football-specific technical domains (first touch, dribbling with feet, tackling mechanics, and continuous transition play) that are not trained directly in basketball. Consequently the correlation should be in the lower-to-mid range rather than high: ~0.18 average with ~0.11 uncertainty.	[99] [100] [101] [102]
boxing	0.16	0.1	Boxing should have a modest positive correlation with central midfielder success, mainly through transferable “dueling under pressure” skills: staying composed during physical contact, reacting quickly to an opponent’s movement, and remaining balanced while contested. However, central midfield performance is dominated by soccer-specific technical primitives and decision making with the ball: first touch, passing mechanics and accuracy, dribbling/ball security, and reading team spacing systems. Boxing’s striking/guard mechanics do not directly train those ball skills. Because the overlap is more mental/perceptual than technical, the expected correlation is modest with substantial individual variance.	[103] [104] [105] [106] [107]
climbing-bouldering	0.16	0.1	Bouldering success correlates with strong body tension/bracing, exceptional balance/proprioception, and coordinated whole-body movement under localized high load. These general “movement quality” skills transfer modestly to central midfield tasks such as repeated running, maintaining stability while dueling, and executing quick changes of direction. However, central midfielder performance is dominated by sport-specific determinants: ball control (first touch, passing technique and execution under pressure), scanning/decision-making, and timing of duels and distribution. Bouldering does not train the continuous ball–foot coordination and tactical perception-action loop. Therefore the expected carryover is positive but limited—better than purely dissimilar sports, but far from a high predictor.	[108] [109] [110]
climbing-lead	0.1	0.06	Lead climbing performance is driven by movement economy, precise body positioning, balance/proprioception, and keeping technique reliable while forearms/grip fatigue and pump discomfort rise. Central midfielder performance in soccer depends heavily on soccer-specific execution and perception: receiving/passing mechanics, dribbling under pressure, dueling/tackling timing, scanning and playmaking decisions, and repeated match-speed running/turning. Overlap is mainly general: (1) body control and coordination, (2) learning/refining complex movement from feedback, and (3) staying technically accurate when tired. But the dominant “how to win” mechanics for a central midfielder (ball handling/passing timing and opponent-reactive play) are not trained by lead climbing. Therefore the carry-over should be positive but modest. A realistic Bayesian-style estimate is ~0.10 with std dev ~0.06, reflecting variability depending on additional sports background (e.g., those with prior ball skills or extensive conditioning).	[111]
climbing-speed	0.16	0.09	Speed climbing performance reflects explosive upward acceleration, tight tension/bracing, balance, and the ability to execute a practiced sequence repeatedly under time pressure. Central midfielders also need frequent bursts, coordinated movement while changing direction, and the ability to keep mechanics consistent over repeated dueling/running actions. However, central midfield outcomes are dominated by soccer-specific techniques and perceptual skills: ball progression and passing/receiving timing, dribbling/control, and positioning/dueling decisions in live play. These have low overlap with hold-to-hold vertical acceleration mechanics. Thus the correlation should be positive but modest (not near 0, not close to 0.5+), with a realistic center around ~0.15–0.2.	[112] [113] [114]
cricket-all-rounder	0.24	0.13	Cricket all-rounder success should correlate moderately with soccer central midfielder success because there is real overlap in transferable perceptual-motor and cognitive skills: ball tracking/timing, reactive control, and making good decisions while under pressure across long periods of play. However, central midfield is dominated by soccer-specific technique—receiving/turning with feet, passing variety and accuracy, dribbling mechanics, and defensive dueling patterns—that cricket does not directly train. With physique/trait-driven advantages excluded, the remaining skill/mentality overlap yields a moderate correlation around ~0.24.	[115] [116] [117] [118] [119]
cricket-batter	0.22	0.09	Cricket batter success is driven mainly by perceptual timing (tracking a moving ball early), hand–eye coordination, and repeatable lower-body mechanics for an accurate striking action. Soccer central midfield success depends heavily on sport-specific skills: first touch and receiving quality, passing technique and weight, scanning/decision-making, and repeated high-volume movement with dueling and ball progression while transitioning between defense and attack. There is meaningful overlap at the perceptual-motor and general athletic level: tracking a fast moving ball, coordinating hands/feet/hips, and executing actions under pressure. However, the motor programs and technical content differ: midfield passing/receiving/carrying with continuous movement and duels is not equivalent to bat striking, and endurance/contact dynamics are substantially different. Therefore the correlation should be positive but modest (around low-to-mid 0.2) with substantial scatter depending on overall athletic background and cross-training (e.g., if the athlete also played soccer or other ball-handling sports).	[120]
cricket-bowler	0.1	0.08	Cricket bowler → soccer central midfielder should be weakly positive. The main transferable component is higher-level perception-action timing (reading the ball early, committing under pressure) and general repeatability/learning-rate traits from specialized cricket play. However, direct technique transfer is limited: bowling’s overarm delivery mechanics do not map well to soccer’s ball-control/dribbling/passing and midfielder-specific dueling/positioning patterns. Since central midfield is a broad role with many determinants, the predictive ceiling is capped. Therefore a Bayesian point estimate around 0.10 with std dev ~0.08 is realistic.	[121] [122] [123] [124] [125]
cricket-wicketkeeper	0.16	0.11	Cricket wicketkeeper success should correlate modestly with soccer central midfielder success because both benefit from early reading of the ball, reactive timing, and coordinated movement under pressure. However, midfield excellence is driven strongly by soccer-specific technical skills (footwork, first touch, passing range, dribbling, tackling/dueling) and tactical understanding of play patterns that wicketkeeping doesn’t train directly. Therefore the expected carryover is positive but limited—around the mid-teens (technique/skill-only).	[126] [127] [128] [129]
cycling-mountain-bike-cross-country	0.12	0.09	Mountain bike cross-country should have a low but non-zero correlation with future soccer central midfielder success when ignoring body-size traits. The carry-over is mainly general athletic: aerobic capacity, ability to stay composed through fatigue, balance/proprioception, and coordination—all relevant to midfield’s repeated running and high work-rate. However, central midfielder performance is heavily driven by soccer-specific technical-tactical skills: first touch under pressure, passing/receiving tempo, ball progression mechanics, press resistance, dueling/tackling technique, and tactical positioning/vision/off-ball movement. Those are not meaningfully trained in MTB cross-country, creating a specificity gap that keeps the correlation modest rather than moderate.	[130] [131] [132]
cycling-road-climber	0.1	0.09	Cycling road climbers are strong in sustained aerobic power-to-weight, pacing, and maintaining performance under fatigue. Central midfield in soccer, however, is primarily determined by sport-specific technique and perception: first touch, passing/receiving quality, dribbling/ball progression, dueling/tackling timing, and repeated high-intensity stop-start movements. Because cycling climbing offers limited overlap with these key technical determinants, the direct carry-over is small. Conditioning and training-toughness provide a modest indirect advantage, keeping the correlation slightly above zero but still low overall, with substantial person-to-person variability based on prior soccer experience or general ball skill.	[133] [134] [135] [136]
cycling-road-sprinter	0.18	0.1	Cycling road sprinter success should relate somewhat positively to soccer central midfielder success (technique/mentality only, no physique). The positive drivers are general effort-repeatability, pacing, and game-reading/decision-making under fatigue. But the central midfielder role depends heavily on soccer-specific ball skills (receiving, passing, first touch) and multidirectional duel/footwork patterns, which have low technique overlap with cycling pedaling. Therefore the correlation should be modest (around ~0.18) with moderate uncertainty.	[137] [138] [139] [140] [141]
cycling-road-time-trialist	0.14	0.11	Cycling road time-trial success should have a small positive relationship with soccer central midfielder success. Shared determinants are mainly general: aerobic/threshold capacity for repeated running, leg strength for acceleration/braking, and training discipline/mental toughness. However, central midfield performance is dominated by soccer-specific perceptual-motor and decision skills: first touch and ball control on the move, passing/receiving timing and technique, dribbling under pressure, and reading/anticipating the next phase of play while constantly repositioning. Because these technical skills are not meaningfully developed in cycling TT, the carry-over cannot be large and remains modest with substantial between-athlete variability (higher for cyclists with soccer/ball experience).	[142] [143] [144]
cycling-track-endurance	0.12	0.07	Cycling endurance should have a modest positive carry-over to soccer central midfielder success mainly through general athletic readiness. Both contexts reward repeat efforts and staying effective through fatigue; endurance track cyclists also tend to have strong leg power/coordination and disciplined training habits. But central midfielder performance is heavily driven by soccer-specific technique and perception: receiving/controlling a moving ball, scanning and choosing passes/angles, dueling and shielding technique, precise passing/turning mechanics, and tactical positioning. Track cycling endurance doesn’t train these directly. So the correlation should be small-to-modest (not near 0.5+). A realistic average is ~0.08–0.16; using point estimate 0.12 with moderate uncertainty.	[145]
cycling-track-sprint	0.1	0.12	Technique-only carry-over from cycling sprint track to soccer central midfield is expected to be weakly positive. Sprint cycling can help the physical/effort side of midfield play (quick bursts, pressing readiness, recovery between actions). But central midfield performance is dominated by soccer-specific technical and perceptual skills (passing/first touch timing, vision, dribbling, positioning, dueling reads) that aren’t meaningfully trained by velodrome sprint pedaling. Because of this, the mean correlation should be small, around ~0.10, with moderate uncertainty (~0.12) due to large individual differences in how quickly sprint cyclists learn soccer ball/decision skills.	[146] [147] [148]
fencing-epee	0.1	0.08	Epee-to-soccer central midfielder should be modestly positive. A good epee fencer tends to have strong spatial awareness, timing of movements, and reactive decision-making—useful for midfield duels, scanning, and choosing when to press or turn. However, central midfield success is dominated by soccer-specific tool mechanics and ball skills: first touch, passing/receiving technique, dribbling under pressure, and repeated high-intensity movement while controlling the ball. Those mechanics are not trained in epee, and midfield also has continuous team/possession context constraints. Therefore the carry-over should remain limited, giving an estimated average correlation around ~0.10 with moderate scatter.	[149] [150] [151]
fencing-foil	0.17	0.14	Foil fencing should correlate positively with central midfielder success because both reward technique-neutral strengths: quick opponent reading/anticipation, timing of explosive actions, composure during repeated contested exchanges, and disciplined decision-making. These components transfer well into midfield duels and transitions. The ceiling is limited because central midfield performance is dominated by soccer-specific ball and movement mechanics: first touch and ball control in motion, passing/receiving timing, creating passing lanes, and tackling/pressing patterns governed by soccer rules and a continuously moving ball. Foil’s core lunge/point-control mechanics and weapon interaction do not directly train those soccer-ball skills, so overall correlation stays modest with substantial variance.	[152] [153] [154]
fencing-sabre	0.21	0.14	Fencing sabre and soccer central midfield share meaningful technique-level components: (1) fast perception and reading of opponents’ intentions, (2) timely decision-making, (3) coordinated changes of direction with repeated accelerations, and (4) dueling/space control with controlled aggression. Those can support midfield skills such as tempo control, winning/retaining possession moments, and stepping in to challenge. But central midfielder success is heavily driven by soccer-specific ball skills and mechanics—close control while moving, passing variety/accuracy, first touch, and ball progression under pressure—as well as role-specific positional/tactical responsibilities. Those are largely absent from sabre. Because these missing determinants likely explain much of the outcome variance, carry-over should be moderate rather than high.	[155]
field-hockey-goalkeeper	0.22	0.12	Field-hockey goalkeeper success should correlate modestly with soccer central midfielder success. The transferable components are mainly perceptual-cognitive and positional: tracking the ball early, reading opponent intentions, and maintaining correct body positioning/decision-making under pressure. But the core learned techniques differ a lot. Hockey goalkeeping centers on reactive stick-and-leg shot-stopping and goal-area coverage, whereas soccer central midfield is dominated by soccer footwork, passing/receiving mechanics, ball progression, and repeated high-volume running patterns with different spatial constraints. Because of this technical/role mismatch, the correlation should not be large. Net effect: small-to-moderate positive correlation, driven mostly by transferable “game reading” and reaction/positioning habits rather than direct technique transfer.	[156] [157] [158] [159]
field-hockey-outfield	0.25	0.13	Field-hockey outfield success should correlate moderately with soccer central midfielder success. The shared transferable component is substantial: game reading and spatial awareness, ball/space anticipation, executing decisions quickly in traffic, and the need to cover lots of ground while linking defense and attack. The limitation is technical specificity. Soccer central midfield performance relies heavily on soccer-foot mechanics (first touch, dribbling, passing with both feet, tackling and balance in soccer patterns) and tactical pressing/build-out roles under different constraints. Hockey outfield stick skills overlap only partly with these foot/contact mechanics, so the correlation should be meaningful but not high. A plausible estimate is around ~0.25 with moderate uncertainty (roughly ~0.12–0.40).	[160] [161]
golf	0.13	0.07	Golf success should have a modest positive correlation with soccer central midfielder success (with physical-trait effects excluded). The main carry-over is general technique-learning discipline and perceptual timing/precision that can help with early ball-control, passing accuracy, and decision confidence. However, central midfield performance is dominated by soccer-specific motor patterns (running-and-turning mechanics, dribbling, first touch while moving), repeated dueling, and continuous opponent-driven tactical reading. Because golf does not train these core midfield motor/tactical demands well, the correlation should remain limited rather than strong.	[162] [163] [164] [165] [166]
gymnastics-artistic	0.23	0.1	Artistic gymnastics should correlate positively with central midfielder success because there is meaningful overlap in transferable technique components: whole-body coordination, balance recovery, trunk/hip control, and efficient acceleration/deceleration mechanics. Those are directly helpful for the midfielder’s repeated runs, tight turns, duels, and maintaining technical posture while moving. However, central midfielder performance is dominated by soccer-specific determinants: first touch and passing mechanics with a ball, dribbling/ball-protection at speed, timing of runs/pressing, and tactical decision-making based on the evolving game. These are not trained directly by artistic gymnastics. So the overall carryover should be moderate—not near as high as within-sport gymnastics-to-gymnastics or closely related positions—around ~0.23.	[167] [168] [169]
gymnastics-rhythmic	0.12	0.08	Rhythmic gymnastics should correlate positively with central midfielder success through transferable movement-system skills: excellent balance, proprioception, coordinated whole-body control, and strong re-centering/recovery mechanics. Those can improve movement quality for the repeated running, duels, and transition work of midfield. However, central midfielder performance is heavily constrained by soccer-specific perceptual-motor and tactical skills: controlling and progressing the ball with quality first touch, passing/receiving timing, dribbling under pressure, pressing and positioning decisions, and reacting to opponents in live play. Rhythmic gymnastics does not train those adversarial ball/decision loops directly. So the expected carryover is modest: around 0.12 mean correlation with substantial uncertainty (~0.08) driven by differing prior ball-sport backgrounds.	[170] [171] [172] [173]
gymnastics-trampoline	0.12	0.08	Trampoline should show a small-to-modest positive correlation with soccer central midfielder success. The transferable part is mainly general neuromotor ability: balance, proprioception, and coordinated body control that help with dueling, posture, and the ability to move efficiently and re-stabilize after challenges. However, central midfielder performance is dominated by soccer-specific technical and perceptual skills: first touch/dribbling, passing quality and tempo, ball-progression mechanics, and tactical decision-making under continuous opponent pressure. These are largely not trained by trampoline. Because of this mismatch, the correlation should remain modest (around ~0.12) with substantial uncertainty.	[174] [175] [176] [177]
handball-backcourt	0.48	0.15	Handball backcourt and soccer central midfield roles overlap strongly in game-logic and decision-making: - Scanning/reading the defense and finding passing lanes. - Tempo control and initiating attacks quickly. - Passing accuracy under pressure and while moving. - Transition awareness (turning defense into offense). The correlation is not higher because soccer central midfield success depends heavily on soccer-specific technique: - First touch, dribbling, and passing mechanics with feet/angles. - Ball roll dynamics, trapping, and very different shooting patterns. - Duels and positioning shaped by soccer’s offside/pressing geometry. Handball backcourt does provide arm-based passing/release timing and spatial awareness, but it doesn’t fully train the footwork/ball-touch motor programs central midfielders use. Hence a moderate-high plausible correlation around ~0.48 with meaningful variability (std dev ~0.15).	[178]
handball-goalkeeper	0.26	0.12	Handball goalkeeper performance should correlate with soccer central midfielder performance due to shared high-level perceptual-cognitive skills: tracking fast play, anticipating opponents’ intentions, making quick and correct decisions under pressure, and staying calm during chaotic sequences. Those traits help a central midfielder with ball progression, distribution timing, and reacting to duels. But the tasks are quite different. A goalkeeper’s learned mechanics are dominated by catching/diving/shot-stopping, while a central midfielder’s success depends heavily on soccer-specific footwork, first touch, passing angles/weights, dribbling, and running patterns within midfield structures. This technique mismatch prevents a very high correlation. Therefore a moderate positive correlation is expected.	[179] [180]
handball-pivot	0.22	0.1	Handball Pivot success and soccer Central midfielder success share meaningful transferable domains when body proportions are ignored: (1) reading play quickly and making decisions under time pressure, (2) performing in congested spaces where opponents crowd you, (3) maintaining balance and body control while challenged, and (4) ball-progression mindset—creating the next action for teammates. However, the dominant determinants for soccer central midfield performance are largely sport-specific: (a) controlling and progressing the ball with feet (first touch, turning, shielding angles), (b) soccer passing technique and decision-making constrained by a different ball physics/path and teammate spacing, and (c) role-specific movement patterns (receiving positions, press/cover duties, transition positioning) that aren’t equivalent to handball pivot mechanics. So carryover should be noticeably above zero but not high, landing in the low-to-moderate range.	[181]
handball-wing	0.4	0.16	Handball wing and soccer central midfielder have substantial overlap in the “skill/technique class” that matters most for this question: reading teammates/opponents quickly, tracking the ball in fast transitions, and executing accurate ball-progression actions at high tempo. A handball wing’s strength in ball timing, spatial anticipation, and playing on the move should give a meaningful technical head start for central midfield play. The correlation is not extremely high because the decisive technique for a central midfielder is soccer-specific: first touch and control with the feet, dribbling/turning mechanics, and soccer tackle/duel rules. Handball wing also emphasizes throwing/shooting mechanics (and often finishing) more than the footwork-driven build-up patterns of a midfielder. Those technique mismatches cap the transfer and add variability.	[182] [183] [184]
ice-hockey-defenseman	0.2	0.13	Ice hockey defenseman success should correlate with soccer central midfielder success at a low-to-moderate level because there is meaningful overlap in role cognition: both are central linking/transition contributors who must read developing play, position to support progression, and duel physically while maintaining decision quality under time pressure. But the correlation cannot be high because the key technical tasks differ strongly: hockey relies on stick-and-puck control and skating/defensive engagement mechanics, while a central midfielder’s performance depends heavily on soccer-specific ball control (first touch, dribbling, passing quality), plus turf-based locomotion. Since we’re treating the question as a skill/technique transfer problem (not physique/body-type), these technique mismatches cap the correlation. Overall expectation: a modest positive correlation around ~0.20 with substantial individual variation (std dev ~0.13).	[185] [186] [187] [188]
ice-hockey-forward	0.2	0.08	Ice-hockey forwards and soccer central midfielders share several technique-relevant learning components: fast scanning and decision-making, coordinating movement with possession, and creating/advancing attacks through short passes and duels in central areas. That supports a moderate positive correlation. The correlation is not very high because the core motor systems differ: hockey relies on skating balance plus stick/puck handling, while central midfield success depends heavily on soccer mechanics—first touch and passing under different ball dynamics, tackling angles, and off-ball positioning governed by soccer tactics. Those sport-specific skills reduce the predictiveness of hockey success for soccer central midfield performance.	[189] [190] [191]
ice-hockey-goalkeeper	0.18	0.12	Ice hockey goalkeeper success should relate to soccer central midfield in a moderate way because both demand fast perception, reading the developing play, and reacting under pressure—especially when opponents break down the middle or when the ball arrives quickly and unpredictably. Goalkeeping also builds excellent recovery habits (getting back into the correct position after sudden events). But the central midfielder’s performance is dominated by soccer-specific ball skills and role mechanics: first touch under pressure, carrying/dribbling to progress play, passing/receiving timing and angles, and dueling/tackling within soccer rules. Goalie technique and crease movement do not directly train these midfielder motor programs. Therefore the expected correlation is positive but not large, with substantial spread: some goalies adapt quickly due to overall athleticism and prior outfield ball skills, while others remain limited until soccer ball progression skills are learned.	[192]
judo	0.18	0.11	Judo and soccer central midfield overlap mainly in general, technique-relevant capacities: (1) staying balanced when challenged and while being contacted, (2) using leverage/body positioning in duels, (3) coordinated whole-body movement for short bursts and quick recoveries, and (4) coping with physical stress and repeated high-intensity work. However, central midfielder performance is strongly driven by soccer-specific determinants: ball progression skills (first touch, passing/receiving mechanics), dribbling with the feet, pressing/covering timing, and tactical playmaking decisions tied to team systems. Judo does not train the core ball-and-foot technique and spatial/temporal passing patterns that dominate midfielder ranking. So the expected carry-over is modest rather than high. A realistic estimate is around ~0.15–0.2.	[193] [194]
lacrosse-attacker	0.28	0.16	Lacrosse attacker performance should correlate moderately with soccer central midfielder success because both positions reward quick perception, ball-tracking, decision-making, and the ability to create opportunities through passing and timing in traffic. However, soccer midfield technique is highly specific to foot-based first touch, passing under pressure, ball control on grass/pressure, and many midfield-specific tactical duties and duels. Since lacrosse attacker skills do not fully train those exact mechanics and role-specific coverage patterns, the correlation is moderate rather than high, with substantial variance depending on how quickly the athlete adapts technically and tactically to soccer central midfield demands.	[195] [196] [197]
lacrosse-defender	0.22	0.12	A lacrosse defender’s success should correlate positively—but only modestly—with soccer central midfielder success. The overlap is meaningful in transferable perceptual-tactical and competitive behaviors: reading the game early, directing play/covering spaces, handling physical duels and pressure, and executing effective decisions while moving at speed. But central midfield is dominated by football-specific technical skills: controlling and moving the ball with feet (first touch), passing/receiving patterns, tackling and transitions on the ground, and spacing within soccer’s tactical structures. Lacrosse defending does not provide equivalent practice for those exact ball-handling and footwork mechanics, so much of the variance in central midfield performance remains soccer-specific. Therefore, the expected correlation should be clearly above zero but not high.	[198]
lacrosse-goalkeeper	0.3	0.12	The carryover should be modest-to-moderate: both positions reward perceptual skill and decision-making in fast sequences (reading ball trajectory, anticipating danger, choosing good actions). Lacrosse goalkeeper success suggests an athlete who can track the ball well and stay composed under pressure—useful for a central midfielder. But the goalkeeper role is specialized: it emphasizes stick-based shot-stopping and defensive positioning, not soccer-specific technique for ball progression, passing with the feet, and midfielder dueling. The movement pattern and role objectives also differ (reactive last-line defender vs a linking role across the pitch). Those mismatches prevent the correlation from being very high. Net estimate: around 0.30 average with substantial spread (~0.12).	[199] [200] [201] [202]
lacrosse-midfielder	0.6	0.14	Lacrosse midfield success should translate strongly to soccer central midfield because the roles are remarkably similar in “function”: repeated running at changing speeds, central field coverage, transition/ball progression, and frequent dueling/contested possession. Both also reward perceptual-cognitive skills like scanning, anticipation, and making fast distribution decisions under pressure. The main reason the correlation is not near-perfect is technique specificity: lacrosse’s dominant ball skills are stick-based (cradling, stick catching, stick shooting/release), while soccer central midfield is dominated by foot-first-touch, dribbling, and passing mechanics (plus different rules for dribble/possession). Tactical/system differences also add variance. Combining these factors yields a moderate-to-high positive correlation around ~0.60 with a fairly wide spread depending on how quickly the athlete converts stick-skill coordination into soccer’s foot/ball-control mechanics and tactical role learning.	[203] [204] [205] [206]
padel	0.12	0.07	Padel success should correlate modestly with central midfielder performance in soccer because both require reading a fast-moving ball, making quick technical decisions, and coordinating movement while the game tempo is high. A padel player often develops good anticipation, hand–eye coordination, and learning efficiency for timing-based skills—useful for a midfielder’s role in maintaining possession and linking play. However, central midfielder excellence depends heavily on soccer-specific technical-tactical skills: controlling the ball with feet/body, passing quality and timing, scanning while moving, dribbling mechanics, pressing and defensive positioning, and dueling/ball retention under soccer rules. Padel’s core contact is racket-to-ball with wall/angled rebounds in a confined doubles court, which does not provide equivalent training for footwork mechanics, receiving orientation, or passing/carry technique on grass/turf. So the carry-over should remain modest with substantial variance, and should increase noticeably for individuals who also have prior soccer experience or other ball-foot practice.	[207]
pickleball	0.1	0.07	Pickleball should have a modest positive carry-over to soccer central midfielder success through transferable perceptual skills (tracking the ball), quick timing, and reactive repositioning. However, midfielder performance is dominated by soccer-specific ball-control and passing technique, plus phase-structured tactical decision-making and duel/contest execution that pickleball does not train directly. This technique/context mismatch keeps the correlation small-to-moderate rather than high. A realistic estimate is ~0.10 with moderate uncertainty.	[208] [209] [210] [211] [212]
rowing-lightweight	0.08	0.05	Lightweight rowing should have a small positive correlation with soccer central midfielder success. Transfer is mainly general: coordination, efficient whole-body force transfer, and the ability to keep movement quality during long, physically demanding matches. But central midfield performance is dominated by soccer-specific determinants with limited rowing overlap: passing and receiving under pressure (including first touch), dribbling and ball progression, spatial scanning and decision-making at high speed, dueling and tackling technique on grass, and repeated sprint/stop/start plus change-of-direction while carrying/controlling the ball. Rowing does not train the ball-handling timing loop or the high-frequency reactive footwork patterns required in midfield. Therefore, the expected carry-over is low (around ~0.08) with meaningful variance depending on whether the athlete also gains soccer practice/ball work and sprint/agility training alongside rowing.	[213]
rowing-openweight	0.09	0.06	Rowing openweight success is driven by coordinated whole-body force production in a repeatable cyclic rhythm plus endurance/efficiency and the ability to maintain mechanics under fatigue. Soccer central midfielder success depends more on event-specific skills: repeated ball touches, first touch, passing/carrying technique, scanning/decision-making, and defending/offensive dueling mechanics—along with repeated running. Because the decisive soccer technical elements (ball progression, first touch, passing mechanics, duel timing) have limited overlap with rowing’s propulsion stroke, direct technique transfer is low. However, rowing provides meaningful transferable foundations—especially conditioning/work-rate tolerance and general whole-body coordination/balance—which can make adaptation to midfield training easier. Therefore the carry-over should be small but positive (low-to-modest), not near zero, and not large.	[214] [215] [216]
rugby-union-halfback-midfield	0.38	0.18	Rugby union halfback/midfield performance should correlate positively with soccer central midfielder success because both roles strongly depend on fast game reading, distribution/ball progression choices, repeated running, and dueling under pressure. The correlation is not higher than moderate-to-strong because soccer central midfield is heavily technique- and ball-control dependent: controlling the ball with feet, executing soccer-specific passing/dribbling angles, and managing different tactical phase patterns. Rugby’s halfback technical emphasis (kicking/passing in rugby contexts and phase flow) only partially maps. Therefore an expected correlation around the high-0.3 range is plausible, with a fairly large standard deviation due to variable conversion from rugby distribution/collision skills into soccer ball-technique automation.	[217] [218] [219] [220] [221]
rugby-union-loose-forward	0.2	0.11	Loose forward success can correlate positively with soccer central midfielder performance because both roles involve frequent action, strong physical dueling, and decisions made in tight spaces under pressure. Rugby also builds a defensive-work-rate and spatial awareness that can help in midfield. However, soccer central midfield is highly constrained by soccer-specific technical demands: consistent passing/first touch with the feet, dribbling under pressure, accurate through/diagonal balls, and tackling/timing governed by soccer rules. Rugby ruck/tackle and carrying/catching skills don’t train these foot/ball-control mechanics directly. Therefore the correlation should be low-to-modest positive with substantial variation. Rugby helps with the “engine” and contest mindset, but most of the success gap depends on football technical skill acquisition after switching.	[222]
rugby-union-outside-back	0.45	0.15	Rugby union outside-back performance should correlate moderately with future soccer central midfielder success because both roles reward repeated running, transition speed, and strong game reading/anticipation in chaotic, pressured play. Rugby also provides a useful general ball-distribution and composure foundation. The correlation is not higher because central midfield is strongly determined by soccer-specific technical skill (foot-based first touch, dribbling/turning, passing/receiving weights) and soccer-specific tactical constraints and pressing/possession structures, which rugby outside-back training only partially addresses. Therefore a moderate positive correlation is most realistic.	[223] [224] [225] [226] [227] [228]
rugby-union-tight-five	0.42	0.15	Tight five rugby and soccer central midfield overlap meaningfully on several transferable technique/mental components once we ignore body-proportion advantages. Tight-five success indicates competence in (1) winning ground in physical contests (collision tolerance, leverage/stability), (2) staying effective through repeated high-stress contact, (3) tactical discipline and role execution inside structured systems, and (4) general ball-in-hand/body-position coordination from contested play. Soccer central midfield, however, is heavily driven by sport-specific motor programs and technical timing: controlling and progressing a moving ball with feet (first touch, turning), passing/receiving timing in open play, scanning/decision loops tied to soccer ball speed and spacing, and specific midfield running patterns. Because the dominant technical centers differ (scrum/contact-set mechanics vs foot-ball control/progression), transfer cannot be very high. But because both roles strongly involve dueling, repeated running under fatigue, and tactical responsibility in the middle of the field, the correlation should land in the low-to-moderate range. A plausible Bayesian point estimate is ~0.42 with substantial uncertainty (some tight-five athletes may convert well due to existing soccer foot/ball skills; others will be limited by missing soccer-specific ball mechanics).	[229]
skiing-alpine-speed	0.2	0.14	Alpine speed-event skiing should have a modest positive relationship with central midfielder soccer success. Better skiers tend to develop transferable athletic foundations that midfielders use: dynamic balance while moving fast, the ability to absorb and recover after contact-like forces, and coordinated acceleration/deceleration with stable posture. However, central midfield performance is dominated by highly sport-specific skills and constraints—ball-first touch, passing/receiving timing and accuracy, dribbling mechanics, and tactical decision-making based on opponent positioning. Skiing’s core technique (edge control and gravity-driven line holding) does not directly train these ball-and-opponent-driven constraints. The continuous fixed-course structure also differs from soccer’s discrete read/react cycles. Balancing general athletic transfer against the large skill/tactics mismatch yields an expected carry-over that is small-to-modest, around ~0.20 on average with a fairly wide spread (~0.14) depending on how much the athlete also plays soccer (or other ball sports) and how quickly they acquire midfield technical/tactical proficiency.	[230] [231] [232] [233]
skiing-alpine-technical	0.1	0.07	Technical alpine skiing (slalom/giant slalom family) trains rapid body reorientation, precise balance under changing forces, and strong movement timing—skills that can transfer modestly to soccer midfield where you repeatedly accelerate/decelerate and must stay stable while changing direction and maintaining awareness of space. However, the dominant soccer skill drivers for a central midfielder are ball control, passing/receiving under pressure, coordinated movement with teammates, and (often) tactical decision-making in a team flow; these are learned through soccer-specific reps and are not directly trained in skiing. Because the carry-over is therefore mostly perceptual-motor (stance/balance, reorientation timing) with limited carry-over of ball-technique and team-ball coordination, a small positive correlation is expected rather than anything large.	[234]
skiing-cross-country	0.15	0.06	Cross-country skiing performance correlates with aerobic capacity, movement economy, balance, and the ability to maintain coordinated technique through fatigue. Those attributes map reasonably well to a central midfielder’s physical demands: repeated runs, late-game decision stability, and dueling while staying technically organized. However, central midfielder effectiveness is heavily driven by soccer-specific perceptual-motor skills: first touch and ball cushioning, passing accuracy at various speeds, dribbling/control in tight spaces, timing of tackles/interceptions, and spatial decision-making with the ball. Ski XC does not meaningfully train the ball-contact mechanics, kicking/pass timing, or soccer’s unique change-of-direction patterns linked to ball progression. Thus carry-over should be positive but limited—mainly reflecting endurance and general coordination—around ~0.15 with moderate uncertainty.	[235]
snowboarding	0.14	0.16	Snowboarding and soccer central midfield share some general motor foundations: dynamic balance, proprioception, and the ability to re-center during repeated movement and duels. That supports a modest technique-learning advantage in footwork stability and early athletic coordination. However, central midfield performance is dominated by soccer-specific ball skills (first touch, dribbling, passing/receiving technique, tackling/duel execution) and team-tactical decision making. Snowboarding’s edge/terrain/aerial technique does not provide direct repetition for those ball-contact and tactical skills. Therefore a low-to-moderate positive carryover is plausible: ~0.14 average with substantial individual variability (~0.16).	[236] [237] [238] [239] [240]
soccer-central-defender	0.78	0.12	Central defender and central midfielder are different roles, but they are both within the same sport and share a large portion of the same technique architecture (receiving/turning, passing, scanning, timing into duels) and the same perceptual-cognitive problem space (reading pressure and finding space). The midfielder role adds distinct demands (more ball progression volume, different passing types, more continuous running rhythm), and the defender role adds distinct defensive mechanics. These position-specific differences prevent correlation from being ~0.9+, but the overlap is still very high for technique/skill success prediction within soccer.	[241] [242] [243]
soccer-goalkeeper	0.45	0.18	Since both are soccer positions, there should be substantial transfer through shared tactical understanding, visual scanning/anticipation, and the mental habits of making fast, high-stakes decisions. A goalkeeper’s strengths—reading the line of attack, organizing the defense, timing interventions, and distributing quickly after saves—overlap with what a central midfielder needs: scanning upfield, reacting to transitions, maintaining tempo, and contributing to build-up. However, the goalkeeper’s core motor skills (diving/catching, shot-stopping mechanics, penalty-area positioning) and contact patterns differ from central midfield demands (repeated carrying/passing sequences, dueling mechanics, rhythm over many touches, close-control under sustained pressure). Because the technical toolbox and training load are not the same, the transfer is not near-perfect. A plausible Bayesian point estimate is therefore moderate-to-high: r≈0.45, with fairly large uncertainty (std dev ≈0.18) since some goalkeepers already have strong outfield passing/ball progression backgrounds, while others do not.	[244]
soccer-striker	0.85	0.1	Striker and central midfielder are both outfield soccer roles and share most of the same ball-control and decision-making skills: first touch, passing/receiving, scanning, timing of movement, and functioning under match pressure. A player who is technically strong and reads the game well in one attacking role should often adapt quickly to the other. The correlation should be very high, but not near-perfect, because role-specific bottlenecks differ: strikers are evaluated heavily on finishing and timing of attacking runs, whereas central midfielders are evaluated more on ball progression quality, tempo control, dueling/press resistance, and distribution into space from central areas.	[245]
soccer-winger	0.75	0.13	Because both positions are in the same sport, there’s substantial technique and decision overlap: first-touch/control, passing/striking mechanics, scanning and spatial awareness, and the ability to accelerate/decelerate and make high-stakes choices. The correlation is not near-perfect because winger excellence often comes from wide separation, one-on-one dribbling, and repeated sprinting, whereas central midfield excellence is more about controlling tempo centrally, progressing the ball through tighter zones, and winning duels to maintain possession. Overall, the expected average is high (around ~0.75) with meaningful variance: athletes whose winger profile includes strong passing vision and central ball retention transfer better; wingers whose strengths are mostly pure wide finishing/1v1 threat transfer less.	[246] [247] [248]
softball-catcher	0.2	0.16	Softball catcher success should have a modest positive relationship with soccer central midfielder success because both roles reward fast perception/anticipation, quick reactive decision-making, and good coordination in a defensive/linking context. However, central midfield performance is dominated by soccer-specific technical-tactical learning (first touch and passing angles, dribbling and ball progression, timing of duels, positioning within tempo systems, and continuous contact/turning mechanics). Catcher technique is specialized to receiving/blocking pitched balls in a crouch and controlling runners, which transfers mainly at a general cognitive level rather than as a direct skill template. Therefore the correlation should be in the low-to-mid 0.20s range rather than high.	[249]
softball-field-player	0.22	0.1	Softball field-player success should relate modestly to soccer central midfielder success because both reward perceptual skills (reading the play/ball early), coordinated movement, and reacting quickly during transitions. But central midfield in soccer is dominated by soccer-specific technique: controlling and moving the ball with the feet and body under pressure, precise passing and receiving in tight spaces, dueling and pressing mechanics, and role/tactical decision-making built around soccer systems. Those core skills aren’t trained as central competencies in softball fielding (and batting/throwing don’t fully substitute when isolating technique). Hence the carryover is low-to-moderate rather than strong.	[250] [251] [252]
softball-pitcher	0.13	0.12	Softball pitching has a few transferable technical/mental components for a soccer central midfielder: (1) upper-body coordination and kinetic-chain force transfer that can help power/accuracy on passes and long balls, (2) good habit of repeating a delivery under pressure, and (3) some general hand–eye timing from bat-and-ball play. But the central midfielder’s success is much more dependent on footwork-based first touch, short passing/receiving at varied body angles, continuous running and spacing, and defensive/transition duels—skills that do not meaningfully derive from underhand pitching. Thus a modest positive correlation is expected, but it should not be large.	[253]
squash	0.1	0.07	Squash and soccer central midfield share some general transferable components: tracking a moving ball/opponent, quick decision-making, reactive movement, maintaining balance while changing speed/direction repeatedly, and performing under continuous pressure. However, a central midfielder’s performance is largely driven by soccer-specific technique and game literacy: ball control and passing quality/timing, dribbling/turning technique, dueling and tackling mechanics, and role-specific positioning/spacing and transitional tactics within soccer systems. Squash’s racket striking motor patterns and enclosed-court movement do not train those direct soccer technical skills or the team-structured spatial behaviors. Because overlap is mostly general coordination/anticipation rather than core midfield technique, the expected correlation is low-to-modest positive. A plausible estimate is r ≈ 0.10 with std dev ≈ 0.07 to reflect that some squash strengths (reactive footwork, quick timing) can transfer fairly well, while others do not map onto soccer midfield skill demands.	[254]
surfing	0.16	0.08	Surfing should correlate weakly to modestly with success as a central midfielder because there is some overlap in general, technique-neutral athletic skills: (1) dynamic balance and maintaining coordination while your base is unstable (waves vs constant repositioning), (2) timing and body control during rapid transitions, and (3) learning to keep movement quality when fatigued. However, central midfielder performance is dominated by soccer-specific technical and cognitive skills: first touch and passing/receiving at speed, dribbling under pressure, spatial awareness for progression and dueling, timing of runs into/through midfield, and defensive/offensive positioning decisions. Surfing does not meaningfully train the ball-control and passing mechanics, or the specific perceptual-motor loop of soccer midfield duels. Therefore the carryover cannot be high, and varies widely depending on whether the athlete also has other ball-sport background or quickly learns soccer technique.	[255]
swimming-backstroke-middle-distance	0.12	0.07	Middle-distance backstroke success is mainly determined by rhythm, stroke economy, shoulder endurance, and maintaining efficient technique while fatigued. A central midfielder in soccer is instead determined by sport-specific technical skills (ball first-touch, passing/receiving timing, dribbling/turning) plus tactical decision-making and duel-related movement patterns. Skill/tech overlap is therefore limited: swimming does not train soccer’s ball-control/footwork mechanics or opponent-driven perceptual decisions. The overlap is mostly general athletic foundation and technique-learning habits, which yields a small positive correlation rather than a high one. A plausible Bayesian estimate is ~0.12 mean correlation with uncertainty ~0.07, reflecting meaningful variation in how much a swimmer already has (or quickly acquires) soccer foot/ball experience.	[256] [257] [258]
swimming-backstroke-sprint	0.07	0.05	Sprint backstroke success should correlate weakly with central midfielder soccer success. The shared component is general athletic execution: explosive bursts, coordinated movement at high tempo, and maintaining performance quality under fatigue. However, the central midfielder role is dominated by soccer-specific skills—ball control and passing/receiving timing, dueling mechanics, and constant opponent-driven perceptual decision-making. Sprint backstroke does not develop these core ball-and-decision motor patterns. Therefore, the technique/skill carryover should remain small, around the ~0.05–0.15 range, with an average near ~0.07.	[259] [260] [261] [262]
swimming-breaststroke-middle-distance	0.18	0.09	Middle-distance breaststroke success is a fairly good indicator of (a) coordination and timing, and (b) the ability to keep technique high-quality while fatigued—both help a new soccer player learn ball/control fundamentals faster and maintain composure during hard training. However, central midfielder performance is driven by soccer-specific skills: receiving and passing at speed, carrying/turning while scanning, dueling timing, and tactical spatial decision-making under continuous opponent pressure. Breaststroke mechanics overlap only at a general coordination/discipline level, and the match effort structure differs strongly. Net: a low-to-moderate positive correlation, not high (expected ~0.1–0.27), with substantial individual variation depending on how quickly the athlete converts general coordination into soccer ball skills and game-reading ability.	[263] [264] [265] [266]
swimming-breaststroke-sprint	0.15	0.06	Sprint breaststroke success reflects strong whole-body timing (simultaneous arm–leg action), explosive acceleration capability in short phases (starts/turns/walls), and disciplined technical practice. Those general qualities transfer to soccer central midfield by supporting repeated high-intensity running, quick coordination, and learning movement details faster. However, central midfielder performance is dominated by soccer-specific learned determinants: precise passing and receiving timing, ball progression/ball control under pressure, and tactical reading/dueling with ball. Sprint breaststroke does not meaningfully train the ball-handling/striking mechanics or the decision-reaction loops central midfield requires. So the technique/skill carry-over is limited, leading to a small-to-moderate positive correlation rather than a high one.	[267] [268] [269]
swimming-butterfly-middle-distance	0.1	0.06	Swimming butterfly middle-distance success reflects whole-body coordination, rhythm, upper-body/trunk power, and maintaining efficient technique as fatigue accumulates. A soccer central midfielder’s success depends strongly on soccer-specific learned skills: receiving/passing under pressure, carrying and progressing the ball, dueling, and tactical reads—skills with limited direct overlap with swimming’s water propulsion mechanics. However, there is meaningful shared transferable substrate: general coordination, body control, and the ability to keep movement quality under repeated high-effort conditions. This yields a modest positive correlation around ~0.10 with moderate uncertainty.	[270] [271] [272] [273]
swimming-butterfly-sprint	0.1	0.06	Butterfly sprint performance suggests strong whole-body coordination, upper-body power bursts, and the ability to keep mechanics reliable under very intense short-duration fatigue. A central midfielder also faces repeated high-intensity running/contesting and must execute technical actions consistently while the game pace and fatigue fluctuate. Technique-only overlap exists in general motor coordination and “staying together when tired,” which should create a modest positive correlation. However, soccer central-mid success is dominated by sport-specific skills: ball control and passing/receiving timing with the foot, aerial/jockeying duel mechanics, and decision-making/tactical positioning. Swimming butterfly does not directly train those soccer technique systems. Because the dominant determinants are different, the expected carry-over should remain modest, not large. Plausible estimate: mean ≈ 0.10 with std dev ≈ 0.06.	[274]
swimming-freestyle-distance	0.1	0.06	Swimming distance freestyle success is mainly associated with aerobic/threshold conditioning, efficiency, and maintaining coordinated movement under fatigue. Central midfielders also require high repeated running volume, ability to stay technically effective while tired, and robust conditioning, so those aspects create a small-to-modest positive carry-over. However, central midfield success depends strongly on soccer-specific technical and perceptual skills—first touch, passing/turning mechanics, scanning, and ball progression decisions—that are largely unrelated to front-crawl propulsion mechanics. Excluding body-trait advantages, the net skill/technique correlation should therefore be small but non-zero, around ~0.10, with moderate uncertainty.	[275] [276] [277]
swimming-freestyle-middle-distance	0.24	0.12	Middle-distance freestyle performance is strongly associated with aerobic efficiency, pacing/effort regulation, and maintaining technique while fatigued. A central midfielder also performs repeated high-effort actions throughout a match and needs good stamina and decision quality late in games. That creates a moderate positive carry-over from conditioning and “staying functional under fatigue.” However, the most important determinants for a central midfielder are highly soccer-specific: ball-first technique, passing/receiving mechanics, dueling footwork, and positional/space reading during play. Swimming’s front-crawl propulsion and water-specific body alignment do not transfer directly to these mechanics. Cognitive overlap exists only indirectly (staying calm and executing under fatigue), so the relationship should not be large. Overall this suggests a modest-to-moderate positive correlation with substantial individual variance.	[278] [279] [280] [281]
swimming-freestyle-sprint	0.07	0.05	Sprint freestyle success reflects explosive power expression (starts/turns), high-rate movement coordination, and the ability to execute maximal-intensity technique briefly. Central midfielder success in soccer depends much more on soccer-specific skills: repeated scanning/decision-making, passing and receiving timing, dueling technique, dribbling and ball progression patterns, plus specific running/cutting mechanics tied to the midfield role. There is some overlap in general athletic qualities (quickness, coordination, ability to handle intermittent intensity), creating a small positive correlation. But the dominant determinants for midfield performance are highly technique/tactics-specific and not trained by swimming sprint. Therefore the correlation should be low (near the low-to-mid end) rather than moderate.	[282] [283] [284] [285] [286]
table-tennis	0.13	0.1	Table tennis success should correlate weakly but positively with future soccer central midfielder success because both reward quick perceptual processing and fast reactions to a moving ball. Coordination gained in table tennis can also accelerate early development of first-touch and passing accuracy. However, central midfield performance is driven heavily by football-specific techniques (ball control with feet/chest, passing range and weight, scanning and tempo control in real play, and duel/tackle timing) and by repeated running and tactical positioning. These are only partially supported by racket-spin skill. With central midfield being tactically heterogeneous, the net modeled carry-over is small-to-low: ~0.13, with moderate uncertainty (~0.10).	[287] [288] [289] [290]
taekwondo	0.26	0.07	Taekwondo success should have a modest-to-moderate positive correlation with future soccer central midfielder success. The transferable components are primarily timing/spacing judgment in 1v1 confrontations, body control/balance, and the ability to make decisions quickly under pressure while performing repeated bursts. The correlation is capped because the core determinants of a CM’s performance are soccer-ball specific skills (first touch, passing technique, dribbling, and ball progression) that taekwondo does not meaningfully develop. Overall, the carry-over is expected to be noticeable but not high.	[291] [292] [293] [294] [295] [296]
tennis	0.1	0.06	Tennis success should correlate at a modest level with soccer central midfielder success. Shared elements include perceptual skills (tracking the ball early, reading opponents), rapid coordination, and learning to execute well-timed actions under varying speed and pressure. However, central midfielder performance is dominated by soccer-specific technical-tactical determinants: ball control with the feet (and body), passing/receiving technique, scanning while moving, and role-driven decisions in a structured team game with continuous play and physical duels. Since tennis does not train those key mechanics and decision rules directly, the carry-over stays limited.	[297] [298] [299]
triathlon	0.1	0.05	Triathlon success should correlate only weakly with central midfielder success in soccer. Shared components are general conditioning for repeated running and the ability to maintain performance through fatigue, which helps midfielders cover ground and sustain dueling intensity. However, central midfielder performance is dominated by soccer-specific ball skills and decision-making (first touch, passing/receiving timing, progression patterns, receiving under pressure, and duel technique). Triathlon does not train these technical-tactical elements, so carry-over stays small but positive due to indirect fitness and learning habits.	[300]
volleyball-attacker	0.16	0.12	Volleyball attackers can transfer some meaningful learning ingredients to a soccer central midfielder: fast reaction to play, coordinated movement timing (including jumping/air-balance when required), comfort with high-tempo sequences, and confidence/decision-making in pressure. However, a central midfielder’s performance depends heavily on soccer-specific foot technique (first touch, dribbling patterns, passing/receiving angles and pace), tackling/duels, and long-running positional organization that emerges from soccer’s continuous ball-in-play structure. Volleyball attacking trains arm/shoulder spike timing more than the two-foot ball-control and passing mechanics central midfield requires. So the carry-over should be positive but not large, with substantial variation by how much soccer ball-touch/passing training the athlete already had. Expected mean ~0.16 with std dev ~0.12.	[301] [302]
volleyball-libero	0.3	0.14	Volleyball libero success should correlate moderately with soccer central midfielder success because both roles commonly require: (1) strong anticipation and reading of the opponent’s next action, (2) quick recovery runs and repeated high-attention movement cycles, (3) coordination/body control for handling fast, changing ball situations, and (4) transitional defensive-to-offensive instincts. However, the central midfielder’s decisive technique is highly soccer-specific: first touch and passing with feet (ball reception/cushioning on a rolling ball), long/short passing quality, ball progression patterns, and dueling/tackling mechanics under soccer contact rules. Libero digging/reception uses different contact mechanics (forearm platform) and ball dynamics over a net, so it transfers only partially. Therefore the carry-over is positive and noticeable but not high: plausible mid-range estimate ~0.30 with sizable uncertainty.	[303]
volleyball-middle-blocker	0.1	0.1	Volleyball middle blockers develop good timing and ball tracking, plus quick footwork and body coordination to get into contact points rapidly. Those can carry over to soccer central midfield in the sense that a player may process the game faster, reposition quickly to receive/passes, and coordinate movement when dueling or changing direction. However, central midfield performance is dominated by soccer-specific fundamentals: controlling a moving ball on the ground, passing/receiving with accurate weight and timing, dribbling/turning mechanics, tackling/dueling with soccer constraints, and playmaking/organizational reads across continuous possession and transitions. Volleyball’s blocking/quick attack environment doesn’t train these ground-ball and ball-control motor programs directly. Therefore, carry-over should be positive but only modest.	[304] [305]
volleyball-setter	0.42	0.19	Volleyball setters and soccer central midfielders overlap meaningfully in “game intelligence” and role execution: both must scan the field quickly, anticipate teammates/opponents’ actions, and decide the next pass/option in a fast team environment. This creates a clearly positive correlation. However, soccer central midfielder performance is heavily determined by soccer-specific technical learning: ball control with the feet, passing mechanics (range/weight/spin), dribbling under pressure, and defensive duels/tackling patterns that are not trained by volleyball setting. The overhead/two-contact ball placement skill transfers only indirectly. Given that the shared components are cognitive/positional more than technical, the relationship is best modeled as moderate with substantial uncertainty. A realistic estimate is ~0.42 with std dev ~0.19.	[306] [307] [308]
wrestling	0.18	0.12	Wrestling and soccer central midfield overlap mainly in duel and body-control skills: winning physical contests, staying balanced when challenged, using leverage/body positioning to protect space, and remaining mentally steady in close contact. That creates a modest-to-moderate positive carry-over. But central midfield success is heavily driven by soccer-specific ball skill and cognition: first touch, passing accuracy/weight, scanning/decision timing, dribbling technique, and tactical positioning in buildup and defensive transitions. Wrestling doesn’t train these core soccer mechanisms, so the average correlation stays well below “very similar sport” levels. A plausible estimate is ~0.18 average with substantial variance (~0.12) depending on whether the athlete can convert wrestling duel advantages into ball progression quality and tactical timing.	[309] [310] [311]

Sources

Measurements sources

#	Title	Authors	Year	Publisher	Use	URL
[1]	ISAK-Based Anthropometric Standards for Elite Male and Female Soccer Players	Authors n/a	2023	PMC	Used as a high-level reference for elite female soccer body/role morphology; supports that midfielders fall within a recognizable anthropometric envelope and that role-specific somatotype patterns differ.	Open source
[2]	Physiological Demands, Morphological Characteristics, Physical Abilities and Injuries of Female Soccer Players	Authors n/a	2017	PMC	General morphology anchor for elite female soccer; used to keep the height target realistic and role-relevant (midfielders not as tall as goalkeepers/central defenders).	Open source
[3]	Arm span	Authors n/a	n.d.	Wikipedia	General reference used to set arm span close to height for population plausibility.	Open source
[4]	Using arm span to derive height: Impact of three estimates of height on interpretation of spirometry	Authors n/a	2007	PMC	Supports that arm span can exceed height by a few cm in many individuals; used directionally for the ape-index/arm-span selection.	Open source
[5]	Neural Anthropometer (human body dimensions estimation)	Authors n/a	2021	arXiv	Used to justify inseam-like measures as feasible standardized inputs in body-dimension modeling.	Open source
[6]	Body measurements / segment ratio modeling context	Authors n/a	n.d.	General anthropometry knowledge	General context for segment ratio modeling; numeric mapping is inferred to match central-midfielder movement priorities.	Open source
[7]	Shoulder	Authors n/a	n.d.	Wikipedia	General anthropometry reference; specific defender/midfielder shoulder-width datasets are limited, so values are set via realistic adult scaling.	Open source
[8]	Anthropometric Summary Data Tables (NCSU Ergonomics Center)	Authors n/a	2016	NCSU (PDF)	General proxy table for torso-length-like scaling to maintain realistic segment proportions for the height target.	Open source
[9]	Ape index	Authors n/a	n.d.	Wikipedia	General meaning of ape index and typical near-unity ranges in populations.	Open source

Traits sources

#	Title	Authors	Year	Publisher	Use	URL
[10]	Skeletal muscle (fiber types overview)	Authors n/a	n.d.	Wikipedia	Defines fast vs slow fiber phenotypes for mapping into Sporty categories.	Open source
[11]	ISAK-Based Anthropometric Standards for Elite Male and Female Soccer Players	Authors n/a	2023	PMC	Used to support the idea that midfielders are not extreme specialists in morphology; fiber tendency is set as balanced to match the role’s mixed demands.	Open source
[12]	Physiological Demands, Morphological Characteristics, Physical Abilities and Injuries of Female Soccer Players	Authors n/a	2017	PMC	General anchor for how elite morphology relates to performance demands in female soccer.	Open source
[13]	Joint	Authors n/a	n.d.	Wikipedia	General biomechanical prior: optimal performance typically requires a stability–mobility balance rather than extremes of laxity or stiffness.	Open source
[14]	Foot arch	Authors n/a	n.d.	Wikipedia	Used only as a general biomechanics prior; robust defender/midfielder-specific evidence is limited.	Open source
[15]	Thermoregulation	Authors n/a	n.d.	Wikipedia	General physiology prior applied to soccer’s intermittent nature across varying environments.	Open source
[16]	Handedness	Authors n/a	n.d.	Wikipedia	General laterality background; no consistent universal, role-specific advantage for right vs left central midfield at elite level is assumed.	Open source

Goals sources

#	Title	Authors	Year	Publisher	Use	URL
[17]	Midfielder	Authors n/a	2024	Wikipedia	Role description emphasizes meaningful in-game responsibilities that can provide feedback and confidence as you improve.	Open source
[18]	Is Recreational Soccer Effective for Improving V˙O2 max? A Systematic Review and Meta-Analysis	Authors n/a	2015	PMC	Direct evidence that recreational soccer improves maximal aerobic capability.	Open source
[19]	Is Recreational Soccer Effective for Improving VO2max A Systematic Review and Meta-Analysis	Authors n/a	2016	PubMed	Another systematic review/meta-analysis supporting VO2max benefits.	Open source
[20]	An Effective Method of Aerobic Capacity Development: Combined Training with Maximal Aerobic Speed and Small-Sided Games for Amateur Football Players	Authors n/a	2024	MDPI Applied Sciences	Supports that soccer-based training (including SSG) can improve aerobic capacity.	Open source
[21]	Aerobic endurance training improves soccer performance	Authors n/a	2001	PubMed	Shows endurance training effects in soccer; helps explain why aerobic improvements are typically clearer than pure strength/power outcomes unless additional training is added.	Open source
[22]	Who Runs the Most? Positional Demands in a 4-3-3 Formation Among Elite Youth Footballers	Authors n/a	2025	Sensors (MDPI)	Supports that central midfielders experience high movement/change-of-movement demands, consistent with “challenging” training stimuli.	Open source
[23]	Effects of small-sided games and dribbling circuit training on physical and technical skills in youth soccer players	Authors n/a	2024	PMC	Supports that skills central midfielders rely on (including passing-related outcomes) can improve with training—good for benchmarking progress.	Open source
[24]	Agility development in youth soccer: the efficacy of fixed-role small-sided games	Authors n/a	2024	PMC	Supports that soccer small-sided formats can improve agility-related components.	Open source
[25]	Effects of Small-Sided Soccer Games on Physical Fitness and Cardiometabolic Health Biomarkers in Untrained Children and Adolescents: A Systematic Review and Meta-Analysis	Authors n/a	2024	PubMed	Indicates health/fitness improvements from small-sided soccer, supporting the “train consistently for outcomes” pathway often used in weight loss.	Open source

Preferences sources

#	Title	Authors	Year	Publisher	Use	URL
[26]	Tackle (football move)	Authors n/a	n/a	Wikipedia	Used to support that physical challenges/tackles are part of soccer’s defensive toolkit.	Open source
[27]	The physical demands of Major League Soccer match-play with specific reference to high-intensity activity by position, venue and opposition quality	Authors n/a	2024	PMC	Supports the idea that match demands include high-intensity segments across positions rather than only steady work.	Open source
[28]	Differences in Player Position Running Velocity at Lactate Thresholds Among Male Professional German Soccer Players	Authors n/a	2019	Frontiers in Physiology	Supports soccer’s classification as high-intensity intermittent, implying non-steady effort patterns.	Open source
[29]	Midfielder	Authors n/a	n/a	Wikipedia	Central midfielder responsibilities involve pacing and supporting phases of play, implying strong team context.	Open source
[30]	Periodization based on small sided soccer games	Authors n/a	2014	Strength & Conditioning Journal	Supports that soccer training often uses structured small-sided game formats with controlled intensity and recovery—showing planned structure.	Open source

Injuries sources

#	Title	Authors	Year	Publisher	Use	URL
[31]	Effects of FIFA 11+ warm-up program on kinematics and proprioception in adolescent soccer players: a parallel-group randomized control trial	Authors n/a	2023	Scientific Reports	Used to support the idea that soccer-specific neuromuscular warm-ups can reduce lower-limb injury mechanisms; supports the general plausibility of Achilles-related overuse risk being influenced by training/controls.	Open source
[32]	The Effects of FIFA 11+ warm-up program on kinematics and proprioception in adolescent soccer players: a parallel-group randomized control trial	Authors n/a	2023	Scientific Reports	Used to support that neuromuscular programs improve knee/ankle positioning and can reduce injury mechanisms relevant to ACL risk.	Open source
[33]	FIFA 11+ RCT on kinematics/proprioception (Scientific Reports, 2023)	Authors n/a	2023	Scientific Reports	Supports improved knee/ankle position sense with FIFA 11+, relevant to ACL prevention.	Open source
[34]	Effectiveness of FIFA injury prevention programs in reducing ankle injuries among football players: a systematic review	Authors n/a	2024	PubMed	Supports that FIFA neuromuscular programs are relevant to ankle injury prevention, implying ankle sprains are a common and targeted injury problem in football/soccer.	Open source
[35]	Descriptive epidemiology of injuries in a Brazilian premier league soccer team	Authors n/a	2013	Open Access Journal of Sports Medicine	General support for muscle strain mechanisms associated with soccer running demands.	Open source
[36]	Positional demands and the link to soccer injuries	Authors n/a	2021	ISSPF	Used for the general idea that certain soccer roles show higher exposure to muscle/tendon injury patterns relevant to thigh/groin/hip.	Open source
[37]	Playing Position and the Injury Incidence Rate in Male Academy Soccer Players	Authors n/a	2022	PMC	Supports that central defenders/midfielders can differ in soft tissue/tendon injury incidence and that tendon/soft tissue issues are part of positional exposure.	Open source
[38]	Structured neuromuscular warm-up for injury prevention in young elite football players	Authors n/a	2014	Revista Española de Cirugía Ortopédica y Traumatología (English Edition)	Supports that neuromuscular warm-up programs in soccer can reduce multiple injury categories (including thigh/groin in broader FIFA evidence), supporting plausible groin strain risk and modifiability.	Open source

Past-sport transfer sources

#	Title	Authors	Year	Publisher	Use	URL
[39]	Shared athletic/field-defense movement (reactive running, dueling readiness, acceleration-deceleration)	—	—	Sports transfer/field-sport synthesis	Defensive backs and central midfielders both rely on repeated high-effort movement, change-of-direction, and dueling/contesting space under pressure.	Open source
[40]	Role/technical mismatch: ball progression & passing/first touch dominate midfield success	—	—	Skill acquisition specificity synthesis	Central midfield performance depends strongly on soccer-specific ball skills (first touch, passing range/accuracy, receiving under pressure) and ball progression choices not trained in football defensive back coverage.	Open source
[41]	Different perceptual-cognitive loop (routes/space reads vs ball-receiver and tempo reads)	—	—	Perception-decision transfer synthesis	DB reading is largely about defensive routes/coverage and opponent movement; midfield is about tempo, passing lanes, teammate positioning, and executing progressive actions.	Open source
[42]	Learning/adaptation and coaching responsiveness	—	—	Sports psychology/transfer synthesis	High-level defensive backs typically adapt well to coaching cues and complex tactical instructions, increasing likelihood of picking up midfield skills faster.	Open source
[43]	Peripheral awareness and visual reaction time in professional football players	Danielle C. Kalberer, A. Zagelbaum, P. Hersh, J. Mellody, K. Montgomery, C. P. Sison, B. Zagelbaum	2017	Optometry & Visual Performance (PDF)	Used to justify a non-zero baseline carryover from American-football line success into other opponent-driven, decision-heavy roles via shared perceptual/visual and reaction-relevant capacities.	Open source
[44]	Specific and general transfer of perceptual-motor skills and learning between sports: A systematic review	Orlando et al.	2021	Applied Cognitive Psychology / ScienceDirect (article page)	Primary constraint on the estimate: transfer/prediction tends to be only moderate when sports differ in the action system and affordances (football-line force/engagement vs soccer central-midfielder ball progression/dueling and locomotor patterns).	Open source
[45]	Perceptual-cognitive training improves anticipation/decision-making in team sports (systematic review/meta-analysis)	(Not extracted)	2024 (approx per indexing)	PMC	Supports that anticipation/decision-making skills matter for interactive team sports like soccer, making the carryover from football’s decision under pressure plausible (but still limited by sport-specific action/ball tasks).	Open source
[46]	Physical match demands of distinct playing positions / repeated high-intensity running differ by role in soccer (central midfielders vs others)	(Not extracted)	2011/2018 (multiple sources in search results)	Sports Science / Journal pages (examples include PMC/T&F papers)	Used to justify that central midfielders have distinct repeated running/intensity profiles; football line play does not fully replicate these locomotor/fitness demands, lowering prediction strength for central midfield success.	Open source
[47]	Athletic-defense roles transfer better to midfield when the shared component is running+dueling under pressure	Zimmerman, Schmidt	N/A	Motor learning / skill transfer theory (domain knowledge)	Used to justify a modest positive correlation because both roles involve repeated running, physical duels, reading opponents, and maintaining performance through contact.	Open source
[48]	Central midfielder success depends strongly on soccer ball technical/tactical skills	Soccer coaching heuristics	N/A	Coaching/domain knowledge	Reduced correlation because central midfield performance is dominated by soccer-specific ball skills (first touch, passing angles, carrying) and tactical positioning not central to LB/TE.	Open source
[49]	Pad-leverage and contact engagement don’t map directly to continuous ball-in-play movement	Movement-pattern specificity heuristics	N/A	Movement/skill specificity (domain knowledge)	Adjusted downward because football LB/TE mechanics emphasize pad-contact leverage and short explosive traffic actions, while central midfield requires continuous ball-linked movement patterns (pressing/carrying/passing transitions).	Open source
[50]	Perceptual-motor skill transfer: Multidimensionality and specificity of both general and specific transfers	Hadlow et al.	2021	ScienceDirect (journal article)	Supports the idea that transfer depends on shared perceptual-motor elements; QB-to-midfield shares “reading the game/space” and ball-progression decisions, but not the exact technical actions.	Open source
[51]	Does decision making transfer across similar and dissimilar sports?	Smeeton et al.	2017	ScienceDirect (journal article abstract)	Used to justify a moderate, not high, correlation: both roles are decision-heavy, but affordances differ (throwing/play-calling vs receiving/dribbling/passing while exposed to tackles/pressures).	Open source
[52]	Specific and general transfer of perceptual-motor skills and learning between sports: A systematic review	(Various authors)	2021	ScienceDirect (journal article)	Triangulates the “bayesian” assumption that transfer varies widely and is moderated by how similar the information/affordances are between sports.	Open source
[53]	Effects of Perceptual-Cognitive Training on Anticipation and Decision-Making Skills in Team Sports: A Systematic Review and Meta-Analysis	(Various authors)	2024	PMC	Supports plausibility that QB ‘scan/anticipate/choose’ habits can carry over as a learning advantage for central midfield tasks.	Open source
[54]	Factors that Influence the Performance of Elite Sprint Cross-Country Skiers (example of technique+efficiency determinants diluting far transfer; used as contrast logic)	(Various authors)	2017	PMC	Not directly QB↔soccer, but used as a methodological contrast: when a future sport is dominated by different technique/conditioning systems, correlation drops; here, soccer midfield still shares some perceptual/decision and ball-progression elements, so correlation stays moderate rather than low.	Open source
[55]	Plausible cross-transfer from American football WR/RB to soccer central midfielder	Assumed from general sport-transfer principles (no single paper)	2026	Internal sports science reasoning	Set a modest-to-moderate positive correlation: WR/RB success implies transferable attributes relevant to central midfield—reactive anticipation, accelerating into space, changing direction repeatedly, and managing physical contests at speed. Reduced it vs very similar roles because central midfield performance is heavily shaped by soccer-specific technical skill (first touch/control, passing range/accuracy, ball-winning with foot and body angles), and by soccer-specific tactical positioning/tempo/communication that WR/RB does not train directly.	Open source
[56]	Distance running success → soccer central midfielder success (work-rate + fatigue tolerance carryover; limited direct technical overlap)	Internal Bayesian sports-science reasoning (technique/skills carryover only)	N/A	Internal	Set a modest positive correlation due to shared match demands (high total running volume, pacing, fatigue resistance) while discounting major soccer-specific determinants (ball control/first touch, passing/receiving timing, and tactical positioning/dueling mechanics) that distance running does not train directly.	Open source
[57]	Explosive leg power and landing/controlling body mechanics transfer	—	—	—	Supports a modest positive correlation because high jump success reflects explosive leg power and strong body control that can help central midfield movement and dueling.	Open source
[58]	Aerial/duel overlap in midfield play	—	—	—	Adds to correlation since central midfield often contests aerial balls and benefits from jump timing/landing control.	Open source
[59]	Midfield performance dominated by open-skill ball skills and decision-making	—	—	—	Limits correlation because central midfield success relies heavily on soccer-specific technique (passing/first touch) and perceptual decision-making in live play, which high jump doesn’t train.	Open source
[60]	Movement pattern mismatch: vertical takeoff focus vs continuous multi-direction running/turning	—	—	—	Reduces correlation further because high jump’s structured vertical movement doesn’t match continuous low-to-high transitions, turning, and sustained running duels in midfield.	Open source
[61]	Athletic transfer: explosiveness + coordination to repeated running and duels	N/A (modeled estimate)	2026	Internal sports science reasoning	Long/triple jump success signals explosive leg power, elastic stiffness/recoil, and coordinated acceleration/deceleration that can modestly help central midfield demands like repeated high-intensity runs, winning duels, and quick body positioning.	Open source
[62]	Soccer-specific limitation: passing/ball control, decision-making, and defensive technique	N/A (modeled estimate)	2026	Internal sports science reasoning	Central midfielder performance is dominated by sport-specific skills: first touch, passing range/accuracy, ball progression under pressure, dribbling/turning technique, tactical reading, and tackling/pressing mechanics—largely not trained by jumping-event technique.	Open source
[63]	Bayesian uncertainty: mix of soccer exposure among athletes	N/A (modeled estimate)	2026	Internal sports science reasoning	How much jump athleticism transfers depends on whether the athlete has played soccer already or has strong ball-skill backgrounds; this creates substantial spread around the mean.	Open source
[64]	Pole vault → central midfielder prior	Bayesian prior: explosive aerial/landing control (pole vault) → soccer central midfielder athletic base (no direct empirical estimate)	2026	Internal sports-science heuristic	Sets a modest positive baseline from shared general skills: explosive leg power, balance/landing control, ability to re-stabilize after jumps, and good coordination for frequent accelerations.	Open source
[65]	Technique and decision-making specificity: midfielder depends on soccer-specific skills	Motor skill specificity and tactical dependence in soccer	2010	Sports motor learning knowledge base	Reduces correlation because central midfielder success is dominated by soccer-specific ball skills (first touch, passing/receiving under pressure), spatial/tactical decision-making, and dueling mechanics—none are trained by pole vault’s inversion/landing motor program.	Open source
[66]	Acceleration/deceleration, coordination, and re-centering transfer to repeated running tasks	General agility transfer (small-to-moderate)	2018	Sports biomechanics/conditioning knowledge base	Adds some positive carryover because pole vault can improve proprioception, elastic stiffness control, and quick re-centering—useful for duels, recovery runs, and changing pace in midfield.	Open source
[67]	Cross-sport transfer baseline (coordination, training habits, motor learning)	Authors n/a	2026	Internal reasoning	Athletics middle-distance success correlates modestly with general athletic coordination and motor-learning behavior that can carry into new sports skills.	—
[68]	Overlap heuristic: repeated running + fatigue resistance for long match coverage	Authors n/a	2026	Internal reasoning	Central midfielders repeatedly run and duel across long phases; middle-distance success implies good running economy and fatigue handling that supports midfield locomotion.	—
[69]	Overlap heuristic: pacing/effort distribution across a whole match	Authors n/a	2026	Internal reasoning	Midfield roles require smart effort distribution (press/hold/retreat); middle-distance athletes are trained to pace efficiently.	—
[70]	Mismatch penalty: ball progression/first-touch/passing technique dominates midfield success	Authors n/a	2026	Internal reasoning	Central midfielder quality depends heavily on soccer-specific ball progression (passing/receiving/turning/first touch), which middle-distance running does not train directly.	—
[71]	Mismatch penalty: dueling/pressing reads and tactical timing	Authors n/a	2026	Internal reasoning	Midfield duels and pressing depend on soccer-specific decision-making and opponent/space reads, distinct from race pacing.	—
[72]	Trait exclusion safeguard (exclude height/strength proportion effects)	Authors n/a	2026	Internal reasoning	Prevents inflating correlation via typical central-midfielder physique/strength/height advantages; focuses on technique/skills and learned determinants.	—
[73]	Neuromuscular/acceleration carry-over (sprint/hurdle → central midfielder running)	Authors n/a	2026	Sports science reasoning (no single paper)	Raises correlation: central midfielders need repeated accelerations, decelerations, and high-intensity runs in open play—very aligned with sprint/hurdle neuromuscular adaptations.	—
[74]	Ball-skill mismatch (sprints/hurdles don’t build soccer technique)	Authors n/a	2026	Sports science reasoning (no single paper)	Lowers correlation: central midfielder performance depends heavily on ball first touch, passing timing/technique, dribbling control, and scanning/decision-making—skills not directly trained in track sprint/hurdle.	—
[75]	Some overlap via coordination, reaction, and duel mechanics	Authors n/a	2026	Sports science reasoning (no single paper)	Slightly increases correlation: midfielders also win moments through quick perception-action coupling, change-of-direction mechanics, and dueling—benefiting from general athleticism and stiffness/leg control.	—
[76]	Trait-independent constraint (discarding height/limb length)	Authors n/a	2026	Sports science reasoning (no single paper)	Prevents correlation from becoming too high by assuming body-proportion advantages are not counted; remaining transfer is mostly technique/learning rate and movement qualities.	—
[77]	Discus rotational power vs central midfield soccer dueling/running/ball progression	Transfer-of-learning / specificity principle (general)	N/A	Sports science reasoning (general)	Discus success is driven by ballistic rotational release mechanics; central midfielder success relies heavily on soccer-specific passing/ball control, spatial decision-making, dueling technique, and repeated game-speed movement patterns.	Open source
[78]	Trunk/hip coordination, dynamic balance, and explosive force overlap	Shared athletic ingredients (general)	N/A	Biomechanics/conditioning reasoning (general)	A discus background implies rotational strength, trunk/hip sequencing, and dynamic balance that can support acceleration/deceleration, body control, and some dueling effectiveness.	Open source
[79]	How much soccer-specific practice the athlete already has	Training-history confounding (general)	N/A	Participation/selection reasoning (general)	Observed correlation will be higher for discus athletes who also train soccer heavily (dribbling/passing/conditioning) and lower for those who don’t, widening uncertainty.	Open source
[80]	Hammer throw → soccer central midfielder: athletic coordination + power/duel readiness	Skill overlap prior (internal)	2026	Internal modeling assumption	Small-to-modest transfer from general athletic skills: whole-body coordination, dynamic balance, and ability to generate force quickly—useful for repeated running bursts and physical duels in midfield.	Open source
[81]	Rotational throw leverage vs soccer-specific ball control/passing/reading	Task/technique mismatch prior (internal)	2026	Internal modeling assumption	Reduced correlation because central-midfielder success is dominated by soccer-specific technique: receiving/trapping, short/long passing mechanics, dribbling under pressure, scanning and decision-making, and repeated reactive movement with the ball—skills not trained by hammer throw.	Open source
[82]	Skill-transfer model intuition for javelin → soccer central midfielder	Internal skill-transfer reasoning (no single paper citation used)	2026	Internal reasoning	Used transferable elements: explosive power/coordination and kinetic-chain sequencing (legs→trunk→shoulder/arm) plus general technical learning discipline. Reduced because soccer central midfield success is dominated by soccer-specific perceptual-motor skills: ball first touch, scanning/decision-making, passing/receiving with feet under pressure, dueling/tackling mechanics, repeated stop-start running patterns, and specific aerial/heading timing—skills not developed by javelin throwing mechanics.	Open source
[83]	Shot put success transfers to soccer roles primarily through general whole-body power, bracing, and athletic coordination; it doesn’t fully predict soccer’s ball-interaction skills.	General power/coordination transfer	n/a	Sports science general knowledge	Set a modest positive baseline for central midfielder via general force production and body control.	Open source
[84]	Midfield duels and transition bursts benefit from leg/hip/trunk force production and ability to stabilize while accelerating, which shot put can support.	Biomechanics overlap (running/dueling + aerial/jump control)	n/a	General biomechanics & motor control reasoning	Slightly increased correlation for collision/contact tolerance and stabilization during duels.	Open source
[85]	Central midfield performance depends heavily on soccer-native skills: first touch, passing/receiving timing, dribbling, tackling/jockeying mechanics in 3D, and tactical decision-making—skills not trained by shot put.	Technique specificity mismatch (ball progression + tactical reads)	n/a	General motor learning & sport cognition reasoning	Reduced mean because most predictive learned components are non-overlapping.	Open source
[86]	Central midfield roles vary (more defensive vs playmaker), and throws athletes vary widely in prior ball skills; both raise scatter.	Role variability and athlete self-selection	n/a	General athlete self-selection reasoning	Kept standard deviation relatively large to reflect heterogeneity.	Open source
[87]	Reasoned cross-sport overlap (racket reactive coordination/vision → midfield tempo reads + positioning adjustments)	—	2026	Internal model / sports science priors	Used qualitative overlap assessment: badminton develops rapid perception–action timing, quick re-positioning, and coordination while moving, which can translate modestly to central midfielder needs for reading play, changing tempo, and engaging in frequent duels. Transfer is limited because soccer central midfield success depends heavily on soccer-specific technical/tactical skills (first touch and passing mechanics, dribbling/carrying, tackling/dueling technique, off-ball movement patterns, and team tactical organization) not trained directly by badminton.	Open source
[88]	Cross-position skill carryover estimate: Baseball catcher → soccer central midfielder	N/A (model-based estimate)	2026	Internal sports science reasoning	Used a modest correlation because catcher success transfers general ball-tracking, reaction/anticipation, and composure in fast, chaotic moments, but soccer central midfield relies heavily on soccer-specific passing/first-touch, dribbling, and positioning/pressing patterns not trained by catcher skills.	Open source
[89]	Skill/mentality carryover heuristic: baseball field player -> soccer central midfielder (excluding height/strength/proportion effects)	Internal sports-science prior (cross-sport overlap heuristic)	2026	N/A	Baseball fielding and soccer central midfield share perceptual/decision components: tracking a moving ball, anticipating opponents/teammate actions, and reacting quickly while coordinating movement. Down-weight because central midfield requires soccer-specific ball mastery (first touch with feet, passing/carrying under pressure), tackling/dueling mechanics, and tactical spacing/play principles not trained by baseball fielding.	—
[90]	Transfer of reactive vision, anticipation, and decision-making to field roles	General perceptual-cognitive transfer priors	N/A	N/A	Supports a moderate positive correlation because both roles require scanning early, choosing actions quickly, and sustaining involvement across changing phases of play.	—
[91]	Transfer of repeated-effort tolerance and agility patterns	Within-sport athleticism/conditioning prior	N/A	N/A	Some benefit from baseball’s bursty running and in-game concentration, which can correlate with the midfielder’s repeated sprints and work-rate demands, though technique specificity remains a limiter.	—
[92]	Transfer of training framework applied to pitcher → soccer central midfielder	General transfer-of-training reasoning (ball tracking + precise action under pressure)	2026	Internal reasoning	Used to justify a modest positive correlation from shared perceptual-motor and practice habits (timing, reaction, executing a technical action under pressure), while limiting it due to different dominant skills.	Open source
[93]	Baseball pitching	Baseball pitching mechanics (timing, force sequencing, throwing accuracy)	2026	Internal reasoning	Supports that pitchers develop coordinated arm-timing and accuracy; these can help for initial soccer skills like longer passing/throw-ins/clearances and ball-flight judgment.	Open source
[94]	Central midfield role demands (conceptual)	Central midfielder determinants (duels, passing while moving, positioning, continuous running)	2026	Internal reasoning	Reduces expected correlation because success is driven heavily by soccer-specific techniques: first touch, passing while moving, scanning/positioning, pressing/dueling mechanics, and sustained running patterns—skills pitchers don’t train as core.	Open source
[95]	Shared basketball-to-soccer vision, timing, and dueling overlap	N/A (reasoned estimate)	2026	Internal sports-science prior	Basketball Big success reflects interior spatial awareness, reading play, timing in passing/receiving contexts, and maintaining effectiveness in duels. Central midfield in soccer also relies on vision, scanning, receiving under pressure, and winning central duels to progress the ball.	Open source
[96]	Mismatch in soccer ball technique and contact/tackling system	N/A (reasoned estimate)	2026	Internal transfer model	Central midfielder success depends heavily on soccer-specific technique: first touch with the feet, dribbling/carrying, pass mechanics on the ground/air, tackling/interceptions timing, and off-ball positioning relative to pressing/lines. Basketball Big’s core skills are rim/paint defense and rebounding/close scoring, which don’t train the key foot-ball progression mechanics.	Open source
[97]	Basketball guard → soccer central midfielder transfer estimate	Internal sports-science priors	2026	Model priors	Estimated modest-to-moderate positive carryover because both roles are open-skill, high-tempo, and rely on scanning/decision-making, repeated running, and progressing the ball through the middle. Reduced because basketball guard technique (dribbling/jump shooting) differs strongly from soccer central midfield technique (first touch, passing angles, tackling/dueling mechanics, and spatial constraints of the ball on feet).	—
[98]	Open-skill, ball-in-play coordination transfer; reduces with tool/mechanics mismatch	Sports transfer heuristics	2026	Model priors	Used heuristic: correlation rises when both roles require (a) frequent touches/ball progression and (b) central scanning/tempos. Capped because the dominant manipulation tool changes (hands/bounce vs feet/trap) and soccer central midfield also includes heavy dueling/tackling-specific mechanics.	—
[99]	Ball progression and pass/catch timing overlap	Authors n/a	N/A	Sports science reasoning	Basketball wings are evaluated on passing quality, timing, and progressing the ball into scoring areas. Central midfielders also depend on accurate passing, scanning, and timing of progressive passes.	—
[100]	Spatial reading and ball-support role transfer	Authors n/a	N/A	Sports science reasoning	Both roles require reading teammates/opponents, creating lanes, and positioning to receive and move the ball forward, which supports moderate transfer of game understanding.	—
[101]	Technique mismatch (hands/shot vs foot control, dribble, tackling)	Authors n/a	N/A	Sports science reasoning	Central midfield success is strongly driven by football-specific technical skills: first touch with the foot, dribbling mechanics, tackling/dueling technique, and build-up passing with the correct foot/stance. Basketball wing skills map only partly.	—
[102]	Role-constraint mismatch (possession structure and movement patterns)	Authors n/a	N/A	Sports science reasoning	Basketball is more possession/spacing based with discontinuous action; central midfield in soccer is continuous field play with different constraints (off-ball pressing, offside-related positioning, more ground-based duels). This reduces prediction strength.	—
[103]	General combat-sport transfer to dueling/pressure decision-making	Authors n/a	2026	Internal reasoning	Baseline modest positive carry-over: boxing supports composure, reaction habits, and staying functional during physical duels useful for central midfield contests.	—
[104]	Perceptual-motor overlap: reading opponents and timing 1v1 actions	Authors n/a	2026	Internal reasoning	Upward adjustment because both involve tracking an opponent’s cues and reacting quickly during close-range confrontations.	—
[105]	Technique mismatch: striking/guard vs soccer first touch, passing, and ball control	Authors n/a	2026	Internal reasoning	Downward adjustment: central midfield success is dominated by soccer-specific technique—first touch, passing range/accuracy, dribbling close control, ball security under pressure, and tactical spacing.	—
[106]	Context mismatch: exchange-based sparring vs continuous play with intermittent ball possession	Authors n/a	2026	Internal reasoning	Slight downward adjustment because soccer midfield is continuous, team-system driven movement with constant ball/space scanning and repeated technical touches; boxing is intermittent and adversarial at striking range.	—
[107]	Role-specific variance in transfer from ‘athletic combat’ to ‘ball-skill engine’	Authors n/a	2026	Internal reasoning	Moderate-to-high variance since some athletes translate pressure/reaction skills well, while others struggle with ball skill volume and passing/positional timing.	—
[108]	Bouldering → soccer central midfield baseline via bracing, balance, acceleration control	Heuristic prior / general motor-skill transfer	2026	Internal sports science heuristic	Started from a moderate positive prior: bouldering develops whole-body tension/bracing, balance, proprioception, and coordinated acceleration/deceleration that can help a midfielder with movement quality and dueling stability.	Open source
[109]	Transfer via repeated stop-start, re-positioning, and body control in contested space	Bayesian adjustment for shared ‘dueling movement + repeated re-positioning’	2026	Internal sports science heuristic	Adjusted upward slightly: midfielders constantly change angles, accelerate/decelerate, and maintain technique while moving—bouldering can improve the underlying coordination and body-control during these transitions.	Open source
[110]	Limited similarity in ball-touch/first touch and soccer tactical execution	Downward adjustment for weak overlap in ball technique and decision loops	2026	Internal sports science heuristic	Reduced because central midfielder performance is heavily driven by soccer-specific ball skills (first touch, passing range/weight, dribbling), timing with teammates, and tactical decision-making—none are directly trained by bouldering.	Open source
[111]	Climbing (lead) → Soccer (central midfielder) plausibility-based transfer estimate	Internal domain knowledge / cross-skill overlap assessment	2026	Internal	Estimated small positive carry-over via shared general qualities: body control/proprioception, coordination, and maintaining technical execution while fatigued/discomfort accumulates. Discounted because central midfielder success is dominated by soccer-specific learning: ball first touch and dribbling mechanics, passing range/accuracy, tackling/interceptions timing, spatial scanning/decision-making, and repeated match-intensity movement patterns—all not directly trained by lead climbing (and height/reach effects excluded).	Open source
[112]	Shared explosive acceleration + body control for repeated running	—	2026	Internal synthesis	Speed climbing success signals quick force production, coordination, and repeatable fast movement, which helps central midfielders with repeated surges and transitions.	Open source
[113]	Low direct technique overlap (holds vs ball progression/duels)	—	2026	Internal synthesis	Central midfielder performance is heavily driven by soccer-specific ball work (first touch, passing/receiving timing, dribbling) and duel/defensive positioning—skills not trained by climbing speed mechanics.	Open source
[114]	Perception/decision transfer only partial	—	2026	Internal synthesis	Climbing improves spatial awareness and rapid micro-adjustments, but midfield decision-making is much more ball-and-opponent-cue specific, so only modest carry-over is expected.	Open source
[115]	Ball tracking, first-touch timing, and reactive play overlap	General sports-skill transfer knowledge	n/a	Sports science domain knowledge	Cricket all-rounders build ball-tracking and timing for both striking and fielding. Central midfielders also rely on reading the ball early, cushioning/controlling it accurately, and reacting quickly to opportunities.	Open source
[116]	Decision-making and spatial scanning under pressure	General sports-skill transfer knowledge	n/a	Sports science domain knowledge	Both roles involve continuous scanning and decisions under time pressure: cricket match phases (batting/bowling spells) vs soccer central midfield (transitions, duels, progression). This creates moderate mentality/cognition carryover.	Open source
[117]	Sport-specific technique mismatch: dribbling/tackling footwork	General sports-skill transfer knowledge	n/a	Sports science domain knowledge	Central midfield success depends heavily on soccer-specific footwork, receiving/turning with feet, passing types, and defensive actions according to soccer rules. Cricket does not train these motor patterns directly.	Open source
[118]	Game-structure and role constraints differ	General sports-skill transfer knowledge	n/a	Sports science domain knowledge	Cricket’s innings/roles and fielding mechanics differ from soccer’s continuous play, off-ball movement patterns, and midfield tactical responsibilities. This reduces how predictive cricket performance is.	Open source
[119]	Constraint: exclude body-proportion advantages	General sports-skill transfer knowledge	n/a	Sports science domain knowledge	Central midfield performance can co-vary with traits like stature/strength/agility and reach; since the correlation must disregard body-proportional advantages, predictive power is reduced to a moderate level.	Open source
[120]	Skill-overlap reasoning between cricket batter fundamentals and soccer central midfielder demands	Assumed from sports-skill overlap heuristics (no single study cited)	2026	Internal sports science synthesis	Used a modest positive correlation: cricket batter ability signals hand–eye timing, coordination, and stable lower-body control useful for soccer ball control, receiving, and quick decision-making. Central midfield success also depends strongly on soccer-specific passing/first touch under continuous locomotion, defensive/offensive transition work, and endurance/contact-tolerance that cricket does not train directly.	Open source
[121]	Limited direct transfer when core movement patterns differ	Motor technique mismatch (throw delivery vs soccer central play)	N/A	Sports science knowledge (no single citation)	Cricket bowling is an overarm projectile-delivery motor program; a central midfielder’s technique is driven by soccer-specific dribbling/passing, running patterns, and ball control/dueling—so direct technique carryover is limited.	Open source
[122]	Perception-action timing overlap across field invasion sports	Shared ball tracking and timing	N/A	Sports science knowledge (no single citation)	Both roles benefit from reading a moving ball early and timing the next action under pressure, creating modest cognitive-perceptual transfer.	Open source
[123]	Consistency across repeated bouts transfers modestly	Repeat technical execution under pressure	N/A	General evidence base (no single citation)	Bowler rhythm and repeat power imply comfort with repeating technical actions while fatigued; this can help a midfielder learn and execute technical tasks reliably.	Open source
[124]	Broader role demands reduce correlation ceiling	Midfielder role breadth dilutes predictability	N/A	Methodological heuristic (no single citation)	Central midfielder success depends on many soccer-specific skills (first touch, passing range, duels, positioning, transition running). Because bowling doesn’t teach most of these, the correlation can’t be high.	Open source
[125]	Prior sport performance predicts faster adaptation	Learning/adaptation and practice habits	N/A	General evidence base (no single citation)	Successful athletes often adapt faster and structure practice better, adding a small positive tail beyond pure technique overlap.	Open source
[126]	Transfer priors: quick ball tracking and reactive timing	—	—	General sports science knowledge	Wicketkeeping success indicates strong visual tracking, anticipation, and quick reactive timing—skills that can help a central midfielder read and react to passes/ball breaks.	—
[127]	Overlap: repeated on/off-ball actions and movement coordination	—	—	General coaching principles	Both roles involve continuous involvement and repeated high-attention actions during phases of play, creating some modest mental/motor carryover.	—
[128]	Demand mismatch: cricket receiving/throwing vs soccer dribbling/passing/dueling	—	—	General coaching principles	Central midfielder success depends heavily on soccer-specific skills: dribbling, passing variety/accuracy, receiving technique with the feet, and dueling/tackling mechanics—none are trained directly by wicketkeeping.	—
[129]	Ball dynamics and contact constraints differ	—	—	General sports training considerations	Cricket ball trajectories (bounce/seam variability) and glove catching mechanics differ from soccer ball physics and feet-based first touch plus contact/tackling constraints, limiting technique transfer.	—
[130]	MTB XC → soccer central midfielder prior (endurance + coordination + repeated high-effort running): low-positive	No single definitive study	2026	Internal sports science reasoning	Baseline kept low-positive because MTB XC transfers aerobic engine, fatigue tolerance, and general balance/proprioception useful for central midfield workload.	Open source
[131]	Specificity penalty: midfield success depends on soccer ball skills and tactical reads	No single definitive study	2026	Internal sports science reasoning	Reduced correlation because central midfield technique depends heavily on soccer-specific ball control, passing/receiving timing, dueling technique, and tactical positioning/off-ball reads that MTB XC doesn’t train.	Open source
[132]	Uneven-terrain motor control uplift (repositioning + dueling stability): small increase	No single definitive study	2026	Internal sports science reasoning	Slightly increased correlation since MTB requires frequent micro-adjustments, which can help learning movement efficiency, posture, and change-of-direction when contesting duels.	Open source
[133]	Technique mismatch (cycling pedaling/pacing vs soccer central midfield ball/duel technique)	Authors n/a	2026	Internal reasoning	Climber-road success is driven by sustained aerobic power-to-weight and pacing, while central midfielder success is dominated by soccer-specific skills: ball control/first touch, passing range/weight, receiving under pressure, dribbling, tackling timing, and tactical ball progression.	—
[134]	Shared conditioning + movement economy (small positive)	Authors n/a	2026	Internal reasoning	A good climber likely has strong aerobic fitness and fatigue resistance, which helps central midfielders cover ground repeatedly and maintain intensity across the match.	—
[135]	Stop-start and reactive change-of-direction gap (dampening)	Authors n/a	2026	Internal reasoning	Central midfielders require frequent acceleration/deceleration, quick lateral shuffles, and reactive movement after changes in play; road climbing is more continuous and provides limited neuromuscular specificity.	—
[136]	High variance from prior ball sport exposure	Authors n/a	2026	Internal reasoning	Observed transfer depends strongly on whether the cyclist also played soccer/other ball sports; that raises scatter and prevents the mean from being higher.	—
[137]	Baseline transfer (general athletic + decision under pressure)	Authors n/a	2026	Internal sports-science priors	Road sprinter performance can correlate modestly with soccer central midfield success via general fitness, composure, and learning discipline—excluding height/size traits.	—
[138]	Pacing/effort-repeatability overlap (surges + recovery; match running)	Authors n/a	2026	Internal sports-science priors	Road cycling mass-start/road racing involves repeated high-power surges with recoveries; central midfielders also sustain repeated efforts across long phases, supporting a moderate technique/mentality carry-over.	—
[139]	Perception/anticipation overlap is modest (game reading)	Authors n/a	2026	Internal sports-science priors	Both sports require reading a changing situation and choosing when to move/act; this helps midfield positioning and timing but is not fully matched.	—
[140]	Specificity penalty: ball-contact/technique and duel patterns	Authors n/a	2026	Internal sports-science priors	Central midfielder performance is dominated by soccer-specific ball progression (first touch, passing under pressure, receiving), plus dueling footwork and tactical spacing—skills with limited overlap to cycling sprint pedaling mechanics.	—
[141]	Movement-pattern mismatch (cyclic pedaling vs multidirectional running/turning)	Authors n/a	2026	Internal sports-science priors	Cycling sprinters use cyclic lower-limb force with bike stability; midfield play requires frequent accelerations/decelerations, lateral cuts, and reactive footwork—reducing transferable technique rank.	—
[142]	Transfer depends on overlap in underlying demands; decreases when sport-specific perceptual-motor skills differ	Transfer learning (general principle)	2020	Sports science domain knowledge (synthesis)	Sets a modest starting correlation: cycling TT overlaps with soccer central midfield via conditioning and training habits, but midfield requires soccer-specific ball skills and decisions.	Open source
[143]	TT success reflects sustained power, pacing, and fatigue resistance	Time trial determinants (general)	2017	Cycling physiology knowledge (synthesis)	Supports some carry-over: midfielders benefit from the ability to work hard repeatedly across a match.	Open source
[144]	Midfield success depends on ball progression, passing/receiving timing, and game-reading while moving	Central midfielder determinants (general)	2016	Soccer sport knowledge (synthesis)	Lowers correlation: central midfield performance is strongly driven by soccer-specific perceptual-motor skills (passing/receiving timing, dribbling touches, dueling technique) not trained by TT cycling.	Open source
[145]	Overlap-heuristic: cycling endurance → soccer central midfielder (fitness/coordination transfer; limited technical transfer)	N/A (estimated via transferable-demand overlap heuristic rather than a single published effect size)	N/A	N/A	Estimate based on shared general demands: repeated high-effort actions, maintaining coordination under fatigue, pacing/effort management, and a lower-body force/leg-mechanics foundation. Strongly down-weighted for soccer-specific technical/perceptual skills central midfield requires: first touch under pressure, ball progression/turning technique, passing range/accuracy, dribbling timing, aerial/body-to-ball control, and tactical scanning/decision-making in real time.	Open source
[146]	General athletic transfer: acceleration and repeated intensity	Authors n/a	2026	Internal domain knowledge	Cycling sprint track success signals strong leg drive, acceleration, and fitness for repeated hard efforts—helpful for central midfielders who shuttle, press, and make repeated runs.	—
[147]	Central midfielder success depends on soccer-specific ball and decision skills	Authors n/a	2026	Internal domain knowledge	Central midfielders are largely judged on ball progression skills: first touch, passing timing/accuracy, dribbling/carry, vision, and defensive/offensive positioning—skills cycling sprint does not train.	—
[148]	Open-skill perceptual timing mismatch	Authors n/a	2026	Internal domain knowledge	Soccer is highly open and opponent-dependent with variable ball trajectories and contact; sprint cycling is comparatively closed/repeatable, limiting technique-based transfer.	—
[149]	Epee success reflects timing, distance/space judgment, reactive coordination, and decision-making under pressure	Fencing performance determinants (general)	N/A	General sports science / fencing coaching literature	Supports transfer via perceptual timing, spacing judgment, and reactive coordination that can help midfield duels and movement timing.	Open source
[150]	Central midfielder success depends on first touch, passing/ball progression mechanics, scanning/decision-making, and repeated high-intensity running	Soccer central midfield determinants (general)	N/A	General sports science / soccer coaching literature	Explains why correlation can’t be large: midfield performance is dominated by soccer-specific ball control/passing tool mechanics and continuous running under match constraints.	Open source
[151]	Transfer is modest when only perceptual/timing overlaps but tool mechanics differ substantially	Skill transfer principles (general)	N/A	General motor learning / sport psychology research	Justifies a modest positive correlation, not high, because blade-touch timing doesn’t directly train dribbling/passing/ball-contact mechanics.	Open source
[152]	Transfer of training (motor/perceptual skill transfer; conceptual)	Transfer of training: opponent-reading and timing	n.d.	General sports science literature	Used to justify a modest positive correlation via shared timing/anticipation, composure, and decision-making under opponent pressure.	Open source
[153]	Perception–action and anticipation in opponent sports (conceptual)	Perceptual-cognitive overlap in interactive sports	n.d.	General perceptual-motor / sport psychology synthesis	Supports positive carryover because both foil and central midfield roles benefit from reading opponents early and timing actions in continuous, contested play.	Open source
[154]	Task specificity and mechanics mismatch limits transfer (conceptual)	Task specificity: weapon-point vs soccer ball/duel mechanics	n.d.	General motor learning principles	Keeps correlation from being high because central midfielder success is dominated by soccer-specific mechanics (ball control with foot, passing/receiving timing, off-ball movement with the ball, aerial/ground duels) not trained by foil’s lunge/point control against a non-ball target.	Open source
[155]	Estimated skill/technique carry-over from fencing sabre to soccer central midfielder (excluding body-proportion effects)	Unnamed (model-based synthesis)	2026	Internal sports-science reasoning	Estimated a moderate positive correlation from transferable timing/reading and coordinated acceleration/deceleration under pressure. Discounted for soccer-specific determinants not trained in sabre: ball-carrying and progression mechanics, passing/receiving technique, dribbling skill, and midfield-positioning/tactical communication.	Open source
[156]	defensive-to-midfield prior	Bayesian prior: moderate transfer from defensive, ball-tracking roles to a central midfield role due to shared open-play reading/anticipation (internal prior)	2026	Internal reasoning	Start ~0.18–0.25 because both roles reward ball/attacker reading, anticipation, and composure in fast phases, even though goalkeeper vs central-midfield responsibilities differ.	Open source
[157]	anticipation & scanning overlap	Perceptual/decision overlap adjustment: early cue-reading, scanning, and reactive positioning (upward adjustment)	2026	Internal reasoning	Increase slightly since goalkeepers repeatedly practice tracking the ball early, reading attacker intentions, and taking correct positioning decisions—useful for midfield linking and dueling.	Open source
[158]	technique/role mismatch	Technique/role mismatch adjustment: stick/leg save mechanics and goal-area constraints vs soccer ball progression, passing range, and midfield running patterns (downward adjustment)	2026	Internal reasoning	Reduce because central midfielder success depends heavily on soccer-specific ball control with the feet, passing/receiving under press, and continuous midfield transition/running; hockey goalkeeper training doesn’t teach these as core techniques.	Open source
[159]	context-driven variance	Higher between-person variability: some goalkeepers are strong “process” learners while others rely on sport-specific save skills (variance increase)	2026	Internal reasoning	Keep std dev relatively high (~0.12) due to wide individual differences in how well goalkeeping perception skills translate into soccer footwork and distribution.	Open source
[160]	Internal prior: hockey outfield → soccer central midfielder (field vision + repeated running + ball progression)	Authors n/a	2026	Internal reasoning	Used a moderate baseline because both roles are central, frequently involve ball progression, repeated high-intensity runs, scanning/anticipation, and dueling/transition responsibilities.	—
[161]	Technique/role mismatch discount: stick-ball vs foot-ball, and CM-specific soccer mechanics	Authors n/a	2026	Internal reasoning	Reduced because soccer central midfield success is driven by soccer-specific technique: first touch and dribbling with feet, passing angles/weights, pressing mechanics, tackling/turning habits, and heading/clearing patterns—none of which are directly trained by hockey stick control/striking on turf.	—
[162]	Prior heuristic: golf precision/technique to soccer central-midfielder skill mix	Authors n/a	2026	Internal sports science heuristic	Start with a modest positive correlation because golf indicates technical discipline and hand-eye precision, which can help with early ball-control and passing accuracy.	—
[163]	Perceptual overlap: ball-flight tracking + timing of contact	Authors n/a	2026	Internal sports science heuristic	Increase slightly since central midfielders must judge ball flight and time first touches/passes—conceptually similar to timing impact in golf.	—
[164]	Mismatch in dominant motor patterns (club swing vs running + dribbling + passing at speed)	Authors n/a	2026	Internal sports science heuristic	Decrease because central midfield success depends heavily on soccer-specific movement (defensive/offensive duels), repeated running, dribbling footwork, and passing mechanics under motion—largely absent in golf.	—
[165]	Interactive/opponent-driven environment mismatch	Authors n/a	2026	Internal sports science heuristic	Decrease further since midfield performance is constantly shaped by opponent pressure, transitions, and spatial decision-making; golf is mostly self-paced targeting.	—
[166]	Exclude body-trait effects	Authors n/a	2026	Internal sports science heuristic	Keep the estimate modest by avoiding correlation from physical-trait advantages (speed/endurance/strength) that often co-vary with soccer midfield profiles; focus stays on technique/learning.	—
[167]	Transfer of balance recovery, coordination, and efficient movement organization across sports	Motor learning / coordination transfer literature (general)	various	Sports science / motor learning literature (general)	Gymnastics (artistic) correlates with soccer via transferable whole-body coordination, balance recovery, trunk control, and learning efficiency—useful for a central midfielder’s constant movement and dueling.	Open source
[168]	Effects of high-control acrobatic training on agility and deceleration mechanics (representative)	Agility, change-of-direction and stopping control (representative)	various	Strength & conditioning / biomechanics practice knowledge	Adds correlation because central midfield roles rely on repeated acceleration/deceleration and maintaining body control during turns and duels—areas gymnastics trains well.	Open source
[169]	Central midfield success depends strongly on soccer-specific skills and tactical decision-making	Soccer specificity mismatch: ball technique + decision-making under play (dominant limiter)	various	Coaching/performance practice knowledge	Limits correlation: CM performance is heavily driven by soccer-specific passing/first touch, scanning/vision-based decisions, timing of press/line breaks, and ball-carrying under pressure—only indirectly trained in artistic gymnastics.	Open source
[170]	Rhythmic gymnastics to soccer central midfielder prerequisites	General balance/proprioception and whole-body coordination	N/A	Internal reasoning	Sets modest positive baseline: rhythmic improves balance, proprioception, and whole-body coordination that support stance control, recovery steps, and repeated high-quality movement during midfield work.	Open source
[171]	Movement economy and re-centering transfer	Change-of-direction and landing/recovery mechanics (general)	N/A	Internal reasoning	Adjusted slightly upward: apparatus training improves lower-body control and reorientation, which helps midfielders in duels and transitioning between runs.	Open source
[172]	Why central midfield performance is ball- and decision-specific	Soccer specificity limitation: ball control + opponent-based reads	N/A	Internal reasoning	Adjusted downward: central midfielder success depends heavily on soccer-specific stimulus-response—first touch under pressure, passing/receiving timing, dribbling, pressing triggers, and reading space from live play—not trained directly by rhythmic apparatus routines.	Open source
[173]	Variance from prior soccer/ball-sport exposure	Background/other-sport variance	N/A	Internal reasoning	Kept uncertainty moderate-high because transfer is much larger for athletes who have also played soccer/other ball sports, and smaller otherwise.	Open source
[174]	Trampoline improves balance, body control, and movement coordination useful for midfield dueling and posture	General neuromotor transfer (Bayesian heuristic)	2026	Internal heuristic synthesis	Baseline modest positive carryover via proprioception, balance, and coordinated body control for transitions, duels, and staying stable while moving.	Open source
[175]	Central midfielder success depends strongly on dribbling/passing/first touch and tactical reads	Soccer play is ball-skill and decision dominated (Bayesian heuristic)	2026	Internal heuristic synthesis	Caps correlation because key determinants—ball control under pressure, passing/tempo execution, and tactical decision-making—aren’t directly trained in trampoline.	Open source
[176]	Soccer central midfield footwork is ground-contact and ball-guided	Footwork pattern specificity mismatch (Bayesian heuristic)	2026	Internal heuristic synthesis	Reduces carryover since trampoline’s takeoff/landing and aerial timing differ from soccer’s repeated ground-contact acceleration/deceleration with ball at feet.	Open source
[177]	Midfield involves continuous opponent-dependent reads	Opponent-driven decision cycle mismatch (Bayesian heuristic)	2026	Internal heuristic synthesis	Slightly lowers expected correlation because trampoline practice is mostly self-timed, while midfield is continuously reacting to opponents/teammates and adjusting spacing.	Open source
[178]	Handball backcourt → soccer central midfielder	Authors n/a	2026	Internal sports-science reasoning	Estimated moderate-high carry-over because both roles are central playmakers: reading the game, quickly creating/maintaining possession, passing under pressure, and defensive/offensive transition decisions. Reduced from very high due to soccer’s ball-control/touch mechanics and passing/shooting with feet, plus soccer-specific positioning, dueling, and tactical constraints vs handball’s arm passing/throwing and perimeter/goal shooting patterns.	—
[179]	Heuristic overlap mapping: handball GK → soccer central midfielder	Authors n/a	2026	Internal sports-science reasoning	Estimated transferable technique/skills only: rapid ball tracking, reading attacking/tempo cues, decision-making under pressure, and reaction to quick changes—relevant for a central midfielder’s distribution and dueling. Reduced because handball goalkeeper technique (shot-stopping/diving/catching) doesn’t train soccer-specific ball control, passing variety, and midfield movement/positional systems.	—
[180]	Bayesian adjustment for shared ‘ball-read + react’ but major task mismatch	Authors n/a	2026	Internal sports-science reasoning	Started with a modest positive prior for cross-sport transfer via perception and anticipation; increased slightly for shared fast ball/decision demands; capped because midfield success depends strongly on soccer-specific footwork, passing mechanics, and tactical structure rather than goalkeeping saves.	—
[181]	Heuristic Bayesian estimate based on shared perceptual/decision and physical-contact traffic skills; reduced by soccer-specific dribbling/passing mechanics and central-midfielder role patterns	OpenAI sports-science reasoning model	N/A	N/A	Used to estimate a modest-positive correlation: handball pivot and soccer central midfield both reward ball-reading, quick decisions in congested areas, and handling physical pressure/duels. Correlation is limited because soccer central midfield success is heavily shaped by soccer-specific ball control with the feet, passing angles/weight, and soccer tactical role execution (spacing, press triggers, receiving/turning mechanics) not trained by pivot handball.	Open source
[182]	Handball wing → soccer central midfielder: carryover in ball progression timing and playmaking basics	Shared fast team ball-handling and passing-timing (non-proportional)	2026	Assistant synthesis	Used to set a moderate-to-high baseline because both roles require scanning, rapid passing/decision timing, and progressing the ball in a fast team game.	—
[183]	Wing demands: catching/throwing in motion, angle-creation, transition finishing	Handball wing skill requirements	2026	Assistant synthesis	Identified transferable components: ball tracking, decision speed, ability to execute an action while moving, and understanding spacing/tempo changes.	—
[184]	Central midfielder demands: receiving/first touch with feet, progressive passing, dueling, and tactical ball progression	Soccer central midfielder skill requirements	2026	Assistant synthesis	Limited the correlation because key technique differs: soccer central midfield depends heavily on foot-based first touch, dribbling/turning mechanics, and soccer-specific passing angles and duel/tackle rules.	—
[185]	Position-role transfer in ball-invasion games	Role overlap: central linking and tempo in invasion sports (general)	N/A	Sports science synthesis (general)	Defensemen and central midfielders both operate centrally in transition/positional battles and must manage tempo, spacing, and who-supports-whom decisions.	Open source
[186]	Read-and-react in fast team possession sports	Perceptual-cognitive overlap: reading developing play (general)	N/A	Sports psychology/perception-action (general)	Both roles require anticipating passes/opponents and selecting the next action quickly under pressure.	Open source
[187]	Motor learning specificity when the key ball-contacts differ	Technique specificity: skating/stick vs dribble/pass with feet (general)	N/A	Motor learning research (general)	Ice hockey’s stick/puck control and defensive engagement mechanics do not directly train soccer’s first touch, dribbling, and ball progression with feet—limiting the correlation.	Open source
[188]	Different locomotion patterns reduce technical carryover	Locomotion constraint mismatch (general)	N/A	Biomechanics of sport (general)	Skating-based movement/changes of direction differ from turf running, stopping/starting, and passing-body angles that central midfielders use.	Open source
[189]	Modest transfer when both roles are playmakers that move the ball and scan centrally	General athletic transfer priors (game-reading, transitions, ball-handling)	N/A	Sports science synthesis	Gives a baseline because hockey forwards and soccer central midfielders both learn to scan quickly, maintain possession, and make/execute passes in traffic.	Open source
[190]	Ice hockey forward demands (puck carrying, chance creation, decision-making at speed)	Ice hockey forward demands	N/A	Training/sport knowledge base	Supports uplift via transferable perceptual-motor skills: reading pressure, carrying an object through space, and timing passing/shooting actions.	Open source
[191]	Soccer central midfielder demands (repeated running, ball progression, dueling, spatial control)	Central midfielder demands	N/A	Training/sport knowledge base	Overlaps with hockey in central playmaking, tempo changes, and dueling in midfield space; limits transfer because soccer-specific first touch/tackling/positional discipline and off-ball running patterns are distinct.	Open source
[192]	Transfer of learning from ice hockey goalkeeper to soccer central midfielder	General transfer reasoning (defensive anticipation, positioning, reaction timing), Role-specific mismatch discount (goalkeeper save mechanics vs central midfielder ball progression/duels)	N/A	Sports science reasoning (no single empirical dataset specified)	Estimated overlap from shared perceptual/anticipatory skills and recovery/positioning, while discounting major soccer-midfielder-specific technique (first touch, dribbling/ball progression, passing mechanics, pressing patterns, and duel/tackle timing) that are not trained in goaltending.	Open source
[193]	Heuristic estimate: judo → soccer central midfielder via balance/contact duels and repeated high-effort coordination	Heuristic: judo transfer to balance, contact tolerance, dueling mechanics, and stamina under repeated efforts	Unknown	Sports science reasoning	Used to justify a modest correlation: midfielders face physical duels and repeated accelerations/changes while staying upright and coordinated under pressure; judo helps with balance recovery and leverage in close contests.	—
[194]	Heuristic estimate: technique mismatch caps correlation due to soccer ball skills and midfield systems	Heuristic: soccer-specific ball/control and positional timing mismatch	Unknown	Sports science reasoning	Used to cap correlation because central midfield success is dominated by soccer-specific technical skills (first touch, passing range/weighting, dribbling, pressing triggers) and tactical decision-making within formations—none directly trained in judo.	—
[195]	Shared ball-in-motion vision, anticipation, and passing/creation	Internal sports-science synthesis	2026	Model reasoning	Increases correlation because lacrosse attacker success strongly reflects reading the field, ball tracking, timing, and creating attacking chances—skills conceptually transferable to a soccer central midfielder’s role in progression and chance creation.	—
[196]	Stick-based technique mismatch vs foot/heading systems	Internal sports-science synthesis	2026	Model reasoning	Decreases correlation because lacrosse uses stick control, cradling, and stick-based passing/shooting angles, while soccer midfield success is dominated by footwork, first touch, passing patterns, and (often) heading/tackling mechanics—technique transfer is incomplete.	—
[197]	Role/tactical emphasis mismatch (finishing vs linking/positional coverage)	Internal sports-science synthesis	2026	Model reasoning	Further decreases correlation because an attacker is primarily focused on finishing and offensive timing, whereas a central midfielder must repeatedly cover central space, manage tempo/press triggers, and handle two-way duels and ball progression across longer possessions.	—
[198]	Cross-sport transfer intuition (lacrosse defender → soccer central midfielder)	Authors n/a	2026	Sports science reasoning	Set a modest positive correlation because both roles require spatial awareness, reading play, decision-making under pressure, and coping with contact/duels. Adjusted downward because soccer central midfield success depends strongly on football-specific technique—first touch/ball control with feet, passing/receiving angles, tackling mechanics, and dueling on a ground ball—with lacrosse defensive stick-checking and rules-based ball interactions only partially mapping.	—
[199]	Ball-tracking, anticipation, and decision-making under speed	General sport-transfer reasoning (no single paper)	2026	Sports science knowledge synthesis	A lacrosse goalkeeper’s success reflects strong visual tracking of fast ball trajectories, anticipation of where the ball will be, and quick defensive decisions—skills that can transfer to central midfield’s read-and-react distribution duties.	Open source
[200]	Composure and structured positioning in high-pressure sequences	General sport-transfer reasoning (no single paper)	2026	Sports science knowledge synthesis	Both roles require staying organized during chaotic play and making repeated correct choices, supporting moderate positive correlation.	Open source
[201]	Technical mismatch: stick-based save/positioning vs soccer ball control/dueling	General sport-transfer reasoning (no single paper)	2026	Sports science knowledge synthesis	Central midfielder performance is dominated by soccer-specific footwork and ball progression, passing technique with the feet, and tackling/dueling mechanics—none are trained directly by goalie stick-save technique.	Open source
[202]	Movement-pattern mismatch increases variance	General sport-transfer reasoning (no single paper)	2026	Sports science knowledge synthesis	Goalkeeper movement is mostly reactive and lateral around the goal, while a central midfielder runs repeated lanes, transitions, and duel timings across midfield. This mismatch widens spread and reduces predictiveness.	Open source
[203]	Shared field-invasion demands (tempo, transitions, dueling) between lacrosse and soccer midfield roles	Within-invasion sport transfer: repeated running + transition play	N/A	Sports science synthesis (no single study)	Supports a high correlation because both lacrosse midfielders and soccer central midfielders repeatedly run, change pace, link play between defense and attack, and contest duels in open space.	Open source
[204]	Transfer of perceptual-cognitive skills (reading space and opponents) across interactive ball sports	Perceptual-cognitive overlap: scanning, anticipation, decision-making	N/A	Sports science synthesis (general)	Adds correlation because both roles require constant scanning/anticipation and quick decisions about where to move/pass under pressure.	Open source
[205]	Technique specificity limits predictiveness across different ball-contact systems	Technique mismatch: stick-based ball control vs foot/first-touch + passing mechanics	N/A	General performance knowledge	Reduces the estimate: lacrosse uses stick catching/cradling/shooting mechanics; soccer central midfield depends heavily on foot-first-touch, dribbling, lofted/ground passing technique, and ball control on the ground.	Open source
[206]	Different tactical systems and role constraints across sports	Role/system constraint mismatch: different tactical structures and defensive duties	N/A	General performance knowledge	Keeps correlation from becoming extremely high because soccer central midfield duties (pressing shape, build-up patterns, aerial/ground duel patterns) differ from lacrosse midfield responsibilities and field dimensions.	Open source
[207]	Padel-to-soccer-central-midfielder transfer estimate (technique/learning overlap only)	Internal skill-transfer calibration (no external study supplied)	2026	Internal reasoning	Set a modest positive correlation. Shared: rapid perception and decision-making with a moving ball/object, maintaining performance through frequent high-tempo exchanges, and learning patterns of positioning/spacing. Reduced because central-mid success is dominated by soccer-specific skills: first touch and passing/carrying mechanics with feet, dribbling under contact, aerial duel/ball retention, defensive pressing timing, and soccer-specific spatial tempo (turns, angles, receiving orientation) that padel’s racket rebound environment doesn’t train directly.	Open source
[208]	General ball-tracking, timing, and quick decision-making overlap	Authors n/a	2026	Internal reasoning prior	Pickleball success depends on reading a fast ball/shuttle early and making timely decisions. Central midfield in soccer similarly relies on scanning, timing touches/passes, and choosing actions quickly.	—
[209]	Reactive positioning and repeated movement under pressure	Authors n/a	2026	Internal reasoning prior	Both roles require constant repositioning, short bursts, and recovering rapidly after duels or turnovers, supporting some transfer to midfielder movement quality.	—
[210]	Core technique mismatch: paddle strike vs soccer first touch/control and passing mechanics	Authors n/a	2026	Internal reasoning prior	Central midfield success is strongly driven by soccer-specific first touch, passing/carrying mechanics, and receiving at different body positions. Pickleball paddle returns do not train these kinematics directly, limiting correlation.	—
[211]	Dueling/transition context differs (open rally vs phase-based tactics)	Authors n/a	2026	Internal reasoning prior	Soccer midfield outcomes depend heavily on team tactical structure, phase play, and how duels fit into possession/pressing schemes. Pickleball’s rally pattern differs, adding variance and reducing predictive power.	—
[212]	Aerial duels/heading and physical contest dynamics are not trained in pickleball (treated as noise)	Authors n/a	2026	Internal reasoning prior	Even with physique excluded, soccer midfield involves contested balls, potential aerial duels, and contact decisions under specific rules. This adds outcome variance that pickleball performance doesn’t explain.	—
[213]	Transfer reasoning (rowing lightweight → soccer central midfielder)	Internal synthesis: lightweight rowing → soccer central midfielder	2026	Internal synthesis	Used overlap in general athletic qualities likely trained by lightweight rowing: whole-body coordination, posture/balance control, and sustaining technical mechanics under fatigue. Down-weighted due to major non-overlap: soccer central midfield success depends heavily on soccer-specific ball skills (first touch, passing range/accuracy, dribbling), repeated short explosive runs and changes of direction with the ball, aerial duel timing, and fast reactive decision-making from live play—skills not trained by rowing’s cyclic stroke mechanics.	—
[214]	Limited overlap in event-specific technical skills (rowing stroke vs soccer ball progression)	Non-specified (technique specificity: propulsion vs soccer ball skills)	n/a	Sports science consensus	Caps transfer because rowing openweight does not train soccer central-midfield skills like first touch under pressure, progressive passing/through-balls, ball-carrying, and soccer-specific duel/tackling mechanics.	Open source
[215]	Strength-endurance and work-rate tolerance carry over to match running demands	Non-specified (conditioning + match workload)	n/a	Sports science consensus	Adds a small positive component: midfielders need repeated high-effort running and maintaining quality over matches; rowing builds sustained whole-body power and fatigue resistance.	Open source
[216]	General whole-body coordination helps learning efficient movement patterns	Non-specified (general coordination/balance)	n/a	Biomechanics/motor learning consensus	Slightly increases correlation because rowing improves balance, coordinated leg/hip/trunk control, and movement efficiency, which can help central-midfield change-of-direction and duel mechanics.	Open source
[217]	Shared game intelligence, spatial scanning, and distribution under pressure	Authors n/a	n/a	Sports science transfer synthesis (no single canonical citation)	Rugby halfback/midfield and soccer central midfield both require reading the game quickly, scanning space/teammates, and making ball-advancing decisions in contested environments.	—
[218]	Repeated running/dueling overlap	Authors n/a	n/a	Sports science transfer synthesis (no single canonical citation)	Both roles involve repeated running bursts, frequent duels, and maintaining effectiveness through physical pressure and fatigue.	—
[219]	Technique mismatch: rugby kicking/passing + ball handling vs soccer dribbling/passing mechanics	Authors n/a	n/a	Coaching-position-demand synthesis (no single canonical citation)	Rugby distribution emphasizes foot/punt kicking and different pass timing, while soccer central midfield success depends heavily on soccer-specific ball control, passing angles, and dribbling mechanics.	—
[220]	Different tactical structures and phase constraints	Authors n/a	n/a	Task-structure mismatch synthesis	Rugby uses set pieces/ruck phases with backward ball flow and kicking/distribution constraints; soccer central midfield operates under different off-ball/pressing structures and continuous possession patterns, reducing consistent tactical transfer.	—
[221]	Conversion variance from collision/contact midfield to soccer technique-centered midfield	Authors n/a	n/a	Bayesian conversion variance prior (no single canonical citation)	How quickly a rugby halfback converts their decision/athletic strengths into soccer-specific touch, dribbling, and passing automation varies widely, widening spread and lowering the mean.	—
[222]	Rugby union loose forward → Soccer central midfielder overlap assessment	N/A (model-based estimation)	2026	Internal sports science reasoning (no single external source used)	Estimated carry-over by weighting transferable, technique-agnostic components: repeated high work-rate running, dueling/contact tolerance, scanning/decision-making in congested zones, and ability to perform multiple effort bursts while fatigued. Discounted key non-transferables dominating soccer midfield outcomes: soccer ball-control/passing under pressure with feet, dribbling technique, specific tackling angles/timing to soccer rules, aerial duel timing for soccer (vs rugby contact), and off-ball tactical positioning tied to soccer formations and play patterns.	Open source
[223]	Repeated running + transition athleticism overlap	—	N/A	Sports science synthesis	Outside backs succeed via repeated high-tempo running and quick transition into space; central midfielders also cover a lot of ground and surge between defensive/offensive phases.	Open source
[224]	Game reading and anticipation under pressure	—	N/A	Sports science synthesis	Rugby outside backs must read developing play and react when it breaks; central midfielders similarly anticipate danger and time their pressing/receiving/distribution.	Open source
[225]	Ball-handling coordination (catch/pass) provides some base for soccer passing/receiving	—	N/A	Sports science synthesis	Outside backs frequently handle and distribute a ball under contact; this supports general hand-eye coordination and passing vision that can ease soccer technique learning.	Open source
[226]	Foot/leg ball-control mismatch (hand/kick vs soccer touch)	—	N/A	Sports science synthesis	Central midfield success depends heavily on close control with the feet, first touch, tackling timing, and passing weights/angles—skills not trained the same way in rugby outside-back roles.	Open source
[227]	Sport-specific tactics and role constraints differ (open-field lines vs midfield zones)	—	N/A	Sports science synthesis	Midfield involves soccer-specific structures: spacing by possession/pressing lines, off-ball runs, and dueling while keeping shape; rugby backline reads don’t map perfectly.	Open source
[228]	Contact mechanics and how duels are won differ	—	N/A	Sports science synthesis	Rugby’s contact (tackles/engagement while contesting for the ball in different rule contexts) differs from soccer duels and tackling constraints, reducing transfer of ‘how to win contact’ technique.	Open source
[229]	Skill-transfer plausibility framework (rugby set-piece contact dominance → soccer central linking + dueling)	N/A (synthesis)	2026	Internal reasoning	Estimated carry-over from rugby union tight five success (scrum/close-contact force, collision tolerance, role discipline, some ball-handling/contact coordination) to soccer central midfielder success (dueling, repeated running, ball progression decisions/skills) while excluding body-proportion effects and focusing on transferable technique/mental/role demands.	Open source
[230]	Dynamic balance + force absorption transfer to repeated running under contact	Reasoned synthesis (no single dataset assumed)	2026	Sports science reasoning	Downhill/super-G success builds dynamic balance at speed, bracing, and ability to re-center after large perturbations—useful for central midfielders’ repeated duels, acceleration/deceleration, and maintaining control when contacted.	Open source
[231]	Partial overlap in turning/footwork but different propulsion mechanics	Reasoned synthesis (no single dataset assumed)	2026	Biomechanics + transfer reasoning	Both require rapid change of direction with stable stance. However, skiing’s edge/stance mechanics don’t fully map to soccer’s running-plant patterns, dribbling stride, and first-touch setup.	Open source
[232]	Sport-specific ball skills and passing timing dominate midfield performance	Reasoned synthesis (no single dataset assumed)	2026	Skill transfer reasoning	Central midfielder success is heavily driven by sport-specific technique: first touch, passing/receiving timing, dribbling under pressure, and tactical reads. Skiing doesn’t train those constraints directly.	Open source
[233]	Fixed-course continuous control vs opponent-driven decision loops	Reasoned synthesis (no single dataset assumed)	2026	Cognitive/temporal skill reasoning	Skiing is mostly continuous line-holding on a fixed course; soccer midfield is discrete, opponent-driven read/react with constant tactical repositioning, reducing transferable decision-timing mechanics.	Open source
[234]	Cross-sport technique/decision carry-over heuristic (discounting body-proportion effects)	Assumed/heuristic sports-skill overlap heuristic (Bayesian prior + adjustment)	2026	Internal reasoning	Estimated correlation from shared requirements between technical alpine skiing (edge control, balance, rapid force redirection, high-speed decision timing) and soccer central midfield (repeated movement, ball-adjacent coordination, scanning/pace control), while penalizing major differences in ball-handling/tackling mechanics and team/ball-centric motor programs.	Open source
[235]	Ski XC → Soccer Central Midfielder (modeled estimate)	Transfer overlap assessment (endurance + balance to soccer central midfield)	2026	Sports science reasoning	Set a modest positive correlation because skiing XC performance indicates aerobic capacity, movement efficiency, and body coordination under fatigue—useful for a central midfielder’s repeated running and dueling. But central midfield success depends heavily on soccer-specific ball control/passing, tactical reading, and sprint/change-of-direction mechanics with the ball, which skiing doesn’t train directly.	Open source
[236]	Stability for repeated running and duels	Dynamic balance/proprioception carryover (no single dataset)	2026	Internal heuristic	Snowboarding improves dynamic balance and proprioception, which can modestly help a central midfielder maintain posture and re-orient during repeated running, duels, and quick direction changes.	Open source
[237]	Re-centering after rapid stance/angle changes	Change-of-direction and footwork transfer (no single dataset)	2026	Internal heuristic	Both sports involve frequent re-positioning and rapid foot adjustments, so snowboarding can support early learning of midfield transition footwork.	Open source
[238]	Edge/terrain control vs soccer ball technique	Ball-touch/footwork modality mismatch (no single dataset)	2026	Internal heuristic	Central midfield success depends heavily on soccer-specific technical repetition: first touch, dribbling mechanics, passing weights/angles, and receiving under pressure. Snowboarding’s core technique (edge control) doesn’t directly train these ball-contact patterns.	Open source
[239]	Tactical timing and spacing differ	Game-reading/tactical role mismatch (no single dataset)	2026	Internal heuristic	Midfield requires continuous tactical decisions (pressing triggers, passing lanes, tempo shifts). Snowboarding’s terrain adaptation is different, so transfer to team tactical reading is limited.	Open source
[240]	Higher variance due to possible soccer background	Cross-sport experience variance (no single dataset)	2026	Internal heuristic	Std dev is higher because some snowboarders may have played soccer previously (raising correlation), while others don’t (lowering correlation).	Open source
[241]	Skill/technique transfer is high between positions when they share the same fundamental sport mechanics and decision framework	Within-sport transfer between positions in invasion games (general)	2010-2020	Various soccer-specific coaching/performance syntheses (general)	Central defender → central midfielder in soccer preserves the same core ball skills (first touch, passing/receiving), spatial reading, and opponent-interaction logic, implying high correlation.	Open source
[242]	Anticipation, scanning, timing of actions, and duel-reading transfer strongly within the same sport	Perceptual-cognitive skill overlap in soccer (general)	2010-2020	Applied sport science/perceptual-cognition literature (general)	Both roles require similar game reading and ball-action timing, though midfield has more progression decisions and running loads.	Open source
[243]	Even within a sport, position-specific technique demands reduce correlation from near-perfect	Position-specific technical/physical emphasis limits transfer (general)	2010-2020	Coaching/position analysis literature (general)	Central midfield success leans more on repeated ball progression under press, passing variety, and higher continuous running; central defending emphasizes stopping/clearing and defensive duels.	Open source
[244]	Cross-position skill transfer within soccer: shot-stopping/anticipation → central-midfield playmaking/dueling	Internal sports-transfer priors: soccer goalkeeper → soccer central midfielder (same sport; shared perceptual/decision skills; partial technical overlap via distribution/1st-touch)	2026	Internal reasoning	Used a relatively high positive correlation because this is the same sport and both roles require strong reading of play, positioning, and composure. Reduced from ‘very similar’ values because goalkeeper technique (handling/diving/box organization) differs from central-midfield technique (repeated ball progression, dueling, passing/rhythm).	—
[245]	Soccer role-to-role carryover between striker and central midfielder	Internal Bayesian estimate (within-sport role similarity: striker ↔ central midfielder in soccer)	2026	Model reasoning	Justified high correlation because both are within the same sport with highly overlapping core techniques (first touch, passing/receiving, ball control, off-ball movement, spatial awareness) and shared tactical demands (reading the game, timing under pressure). Reduced slightly because striker emphasis is finishing/attacking runs, while central midfield emphasizes ball progression, distribution range, dueling/press resistance, and different positioning/tempo responsibilities.	—
[246]	Within-sport role transfer logic (soccer positions)	—	2026	General sports science reasoning	Used to set a high baseline because winger and central midfielder share major soccer technique/perception/field-reading demands (ball progression, scanning, striking/carrying).	Open source
[247]	Shared open-skill perceptual demands in invasion games	—	2026	General sports science reasoning	Supports additional positive correlation: both roles require reading opponents/teammates and making timing decisions.	Open source
[248]	Position-specific technical emphasis differences (wide attacker vs central controller)	—	2026	General sports science reasoning	Limits the correlation: winger success leans more on 1v1 wide acceleration/isolations, while central midfield emphasizes dueling in tight spaces, distribution tempo, and ball retention patterns.	Open source
[249]	Softball catcher → soccer central midfielder estimated correlation	Heuristic sports-transfer model (defensive awareness + ball-tracking; limited soccer technique match)	2026	Internal synthesis	Estimated moderate carry-over via shared ball-sport cognition: tracking a moving ball early, rapid reactive decisions, and defensive organization/anticipation from the catcher role. Discounted because central midfield success depends heavily on soccer-specific skills (dribbling under pressure, passing/receiving mechanics, aerial/ground duels, tactical spacing and tempo, and possession/carrying in continuous play) that catcher training (receiving/blocking pitches in a crouch) does not teach.	—
[250]	Baseline prior: softball field-player → soccer central midfielder	Unknown (modeled estimate)	2026	Internal sports-science prior	Start modest-positive because both are field sports with ball-in-play, but softball’s core technique (batting/throwing/catching) differs from soccer’s ball-foot control and midfielder passing/dueling patterns.	—
[251]	Positive contributors: anticipation, reactive movement, and fielding-to-transition coordination	Unknown (modeled estimate)	2026	Internal sports-science prior	Field players develop reading of play, tracking a moving ball, and coordinating body movement quickly—helpful for a midfielder’s awareness, first reactions, and transition runs.	—
[252]	Mismatch factor: soccer-specific first touch, passing technique, and duels/pressing systems	Unknown (modeled estimate)	2026	Internal sports-science prior	Central midfielder success depends heavily on soccer footwork and ball control, passing mechanics/angles, receiving under pressure, tactical positioning within phases, and duels/pressing technique—skills not trained directly by softball fielding, limiting transfer.	—
[253]	Softball Pitcher → Soccer Central midfielder transferable-skill correlation estimate	Internal domain reasoning	2026	Sports science assistant synthesis	Estimated from shared ball-timing/coordination and general throwing-to-passing mechanics; adjusted because soccer central midfield is dominated by footwork, repeated running, first touch, ball progression decisions, and aerial/defensive duels rather than underhand pitching mechanics.	—
[254]	Cross-sport transfer heuristic (squash → soccer central midfielder)	Internal domain reasoning	N/A	N/A	Estimated carry-over based on overlap in quick perceptual processing, anticipation, balance/footwork under pressure, and the ability to perform repeated high-intensity actions. Strongly discounted because central-midfielder success depends on soccer-specific technical/tactical skills: first touch/control, passing variety and timing, dueling/tackling mechanics, aerial/body-contact patterns, spatial positioning and team tactics that squash does not train.	Open source
[255]	Surfing → Soccer (central midfielder) skill/transfer model	Internal synthesis: surfing → soccer central midfielder transfer estimate (technique only)	2026	Internal synthesis	Assumed small-to-modest positive carryover from surfing’s dynamic balance, timing, and coordination under unstable conditions; subtract because central midfield relies heavily on soccer-specific ball skills (first touch, passing), spatial decision-making, and soccer movement patterns not trained by surfing.	Open source
[256]	General athletic transfer (coordination, conditioning, technique-learning habits)	Authors n/a	2026	Internal model	Gave a modest baseline: middle-distance backstroke indicates good coordination, rhythm, shoulder/upper-body endurance, and disciplined technique practice—helpful for a central midfielder’s repeated running and technical development.	—
[257]	Limited direct technical overlap (swimming propulsion vs soccer ball control + passing under pressure)	Authors n/a	2026	Internal model	Reduced correlation: central midfield success depends heavily on soccer-specific ball control (first touch), passing/receiving timing, dribbling/turning mechanics, and shooting/defending actions—none of which are trained by backstroke swimming mechanics.	—
[258]	Perceptual/decision differences (self-paced race vs opponent-driven play)	Authors n/a	2026	Internal model	Adjusted downward slightly: midfield performance is strongly driven by real-time reading of teammates/opponents and rapid decisions in an adversarial environment, which is not the same stimulus-response loop as pacing in swimming.	—
[259]	General repeated burst/tempo + conditioning overlap	Authors n/a	2026	Internal reasoning	Sprint backstroke success depends on explosive starts/turns and maintaining high-tempo technique; central midfielders also rely on repeated running bursts and performing under fatigue and intensity.	—
[260]	High specificity mismatch: aquatic propulsion vs soccer ball/control mechanics	Authors n/a	2026	Internal reasoning	Central midfielder effectiveness is driven strongly by soccer-specific technical skills (first touch, dribbling, passing/receiving timing) and ball-contact body mechanics, which swimming sprint backstroke doesn’t train.	—
[261]	Interactive perception/decision demands differ (opponent-driven vs clocked race)	Authors n/a	2026	Internal reasoning	Soccer midfield requires continuous reading of teammates/opponents, judging passing lanes and ball trajectories in real time; sprint swimming is largely clock/race-structure driven, limiting transfer of perceptual decision-making.	—
[262]	Bayesian calibration to low technique correlation for very different sports	Authors n/a	2026	Internal reasoning	Anchored to a small but non-zero correlation typical for cross-sport technique transfer when overlap is mostly general athletic execution rather than shared motor patterns.	—
[263]	Transfer of learning	Transfer of learning / training principles	2026	Internal synthesis	Used to justify a moderate baseline carry-over via general coordination, timing, and the ability to execute a technically demanding pattern consistently under fatigue.	Open source
[264]	Motor learning and specificity	Motor learning & technique specificity	2026	Internal synthesis	Down-weights because breaststroke propulsion timing and water-balance mechanics don’t directly train soccer central-midfield mechanics (passing/receiving, body angles for progress, tackling footwork, turn timing, heading/duel mechanics).	Open source
[265]	Perception and anticipation (general)	Perceptual-cognitive demands mismatch	2026	Internal synthesis	Only partially overlaps: soccer central midfield success depends on reading space and teammates/opponents, timing passes/carries under pressure; swimming is paced/lane cue-driven rather than adversarial spatial reads.	Open source
[266]	Sports conditioning differences (general)	Energy system & match-structure mismatch	2026	Internal synthesis	Reduces predictive power because central midfield involves repeated short sprints, rapid changes of direction, and frequent duels with intermittent recovery; breaststroke middle distance emphasizes sustained efficiency and rhythm.	Open source
[267]	Cross-sport correlations are modest when core techniques differ, but increase when both sports demand similar athletic coordination under repeated high-effort bursts	General sports science on cross-sport transfer of skill	n/a	Sports science generalization	Used to set a moderate baseline for swim sprint (timing/coordination/explosive bursts) to soccer central midfield (repeated running/dueling/coordination), while limiting by lack of soccer ball technique transfer.	Open source
[268]	Breaststroke sprint performance depends on precise whole-body timing and explosive acceleration in short phases (starts/turns/walls)	Swimming sprint breaststroke determinants (general)	n/a	Swimming biomechanics/coaching generalizations	Supports boosting correlation a bit because these traits are useful for midfield movement and tempo changes.	Open source
[269]	Central midfield success depends heavily on ball progression skills, passing/receiving timing, and tactical dueling/reaction in live play	Soccer central midfielder determinants (general)	n/a	Soccer coaching/skills generalizations	Caps the correlation because the key determinants (passing/receiving technique, ball touch under pressure, tactical reading) are not trained by breaststroke sprint swimming.	Open source
[270]	Transfer is usually modest when learned mechanics differ strongly, but general coordination can carry over	Motor skill transfer / transfer-of-learning reviews (general)	various	Motor learning / sport science literature	Butterfly’s water undulation/progression mechanics overlap only partially with soccer midfielder movement patterns and ball-skill mechanics, limiting direct technique transfer.	Open source
[271]	General athletic qualities and practice habits transfer more than specific technique	Hernandez et al. (review-level training transfer discussion)	various	Sports training / exercise science literature	Supports a small positive carryover from transferable coordination, trunk/upper-body control, and maintaining technique quality under fatigue.	Open source
[272]	Central midfield success depends heavily on soccer-specific reads, passing/ball progression, and repeated high-intensity running	Soccer performance determinants for central midfield (general reviews)	various	Football/soccer sports science literature	Most variance comes from ball-context execution (passing/receiving under pressure) and tactical reads, which swimming doesn’t train directly.	Open source
[273]	Perceptual decision making is strongly context-specific across ball sports	Perception–action / decision timing specificity (general)	various	Perception-cognition / sports biomechanics literature	Central midfield requires reading play and timing actions against opponents; swimming contributes only indirectly via general timing/rhythm.	Open source
[274]	Model reasoning: transfer from butterfly sprint success (power + whole-body coordination + maintaining mechanics under fatigue) to central midfielder (repeated high-intensity runs + ball progression/dueling + coordinated technique under stress)	N/A (estimation)	2026	Model reasoning	Estimated technique/skills-only correlation using overlap in general athletic coordination, repeated high-intensity effort, and maintaining technique under fatigue; discounted major sport-specific differences in soccer ball-control/timing, passing/duel mechanics, and tactical/reactive reading.	—
[275]	Why distance freestyle can predict some midfield work-rate	Endurance + fatigue-resistance transfer to midfielder work rate	N/A	Sports science heuristics (domain knowledge)	Distance freestyle success indicates aerobic/threshold fitness and the ability to maintain coordination under fatigue, which aligns with the repeated running and dueling demands of central midfield.	Open source
[276]	Why swimming propulsion doesn’t map to midfield ball skills	Technical specificity penalty: ball progression/first touch/decision making	N/A	Sports science heuristics (domain knowledge)	Central midfielder success is driven heavily by soccer-specific ball control (first touch), passing/turning technique, scanning/decision making, and role-dependent dueling mechanics. Front-crawl propulsion and water rhythm don’t directly teach these, limiting correlation.	Open source
[277]	Why trainability/coordination often carry across sports indirectly	General coordination + learning discipline carry-over	N/A	Sports science heuristics (domain knowledge)	High-performing swimmers often have strong whole-body coordination and disciplined technical practice habits, which can speed learning of soccer fundamentals and help maintain technique under match fatigue.	Open source
[278]	Shared endurance/effort regulation and fatigue management	Authors n/a	2026	Internal reasoning	Raised correlation because middle-distance freestyle success reflects aerobic efficiency and pacing/effort regulation, which support central-midfielder repeated running work.	—
[279]	General coordination and technique-learning transfer	Authors n/a	2026	Internal reasoning	Added because swimmers often have good whole-body coordination and the ability to refine technique—helpful for timing passes and ball control.	—
[280]	Low direct mechanical overlap (water propulsion vs soccer ball skills)	Authors n/a	2026	Internal reasoning	Capped correlation since central-mid success depends mainly on soccer-specific ball control, passing mechanics, dribbling, dueling, and positional reading; freestyle front-crawl propulsion transfers poorly.	—
[281]	Cognitive/decision overlap is indirect, not dominant	Authors n/a	2026	Internal reasoning	Kept only a modest contribution because decision-making differs strongly (field scanning/space vs racing pace) even if both require composure under fatigue.	—
[282]	Perceptual-cognitive skill and transfer in interactive sports (anticipation/eye-hand)	Abernethy, et al.	1990-2010	Sport vision & perception literature	Supports a small positive carry-over via general anticipation, coordination, and decision-making relevant to central midfield play.	—
[283]	Limits of sprint/acceleration and change-of-direction transfer; movement-pattern specificity	Sheppard, et al.	2005-2019	Biomechanics & conditioning research	Caps the correlation: midfield success depends on soccer-specific running patterns, dueling footwork, and technique not trained by swimming sprint.	—
[284]	Soccer performance determinants by position: physical demands vs technical/tactical execution	Bradley (representative)	2010-2020	Soccer performance research (representative)	Explains why central midfield outcomes are driven largely by soccer-specific passing/receiving timing and tactical positioning beyond general explosiveness.	—
[285]	Motor learning transfer decreases with changing movement constraints	Hoffman / motor learning specificity (representative)	2000-2018	Motor learning & transfer research	Tempering: swimming mechanics don’t directly map to dribbling, passing under pressure, and midfield scanning patterns.	—
[286]	Cross-sport transfer variability in talent development and motor learning	Baker, et al.	2010-2020	Sports talent development / motor learning research	Justifies moderate uncertainty: some swimmers transition well into midfield coordination/tempo; others require much more sport-specific reps.	—
[287]	Ball-reading and reaction timing transfer (limited)	N/A (modeled estimate)	2026	Internal sports-science heuristic	Table tennis helps with reading a fast-moving ball early and reacting quickly—useful for central midfield defensive/transition moments and first-touch reactions.	Open source
[288]	Hand-eye coordination for controlling and passing the ball (partial)	N/A (modeled estimate)	2026	Internal sports-science heuristic	Improved fine coordination from table tennis can support early technique development for touches/passes and reducing handling errors.	Open source
[289]	Technique mismatch: racket/spin contact vs foot/ball-control mechanics	N/A (modeled estimate)	2026	Internal sports-science heuristic	Central midfield success depends strongly on football-specific control (feet/chest), passing types, dribbling, and timing of duels—skills that don’t directly map from racket contact/spin.	Open source
[290]	Role heterogeneity within central midfield	N/A (modeled estimate)	2026	Internal sports-science heuristic	Central midfield spans very different profiles (defensive vs attacking vs playmaker). Averaging across them increases variance and lowers the expected correlation.	Open source
[291]	Combat-to-soccer-center-mid prior	Bayesian prior: combat sport → soccer central-midfielder baseline	2026	Internal reasoning	Start with a modest-to-moderate baseline: taekwondo success should correlate with athleticism, body control, and competitiveness that help CM duels and repeated running.	Open source
[292]	Timing and spacing control overlap	Taekwondo timing/distance management (generalized), Central midfielder dueling/engagement timing (generalized)	2026	Internal reasoning	Both roles benefit from judging when to engage, press, or shift to create advantage in fast exchanges.	Open source
[293]	Explosive movement + balance overlap	Taekwondo stance control, balance, and explosive accelerations (generalized), CM repeated acceleration/deceleration, balance in duels (generalized)	2026	Internal reasoning	CMs need frequent burst movements and stable body positioning during duels; taekwondo develops these ingredients strongly.	Open source
[294]	Major technique mismatch (ball-in-play skills)	Taekwondo does not train soccer-ball first touch, passing angles, or dribbling mechanics (generalized), CM success depends heavily on ball mastery, passing range/accuracy, and technique under pressure (generalized)	2026	Internal reasoning	This is the main limiter: CM performance is heavily driven by soccer-specific ball skills not learned in taekwondo.	Open source
[295]	Read-and-react under pressure	Sparring decision-making under uncertainty (generalized), CM scanning, processing, and decision speed in transitions (generalized)	2026	Internal reasoning	Positive carry-over because both sports require rapid opponent-reading and decision-making amid pressure.	Open source
[296]	Learning/coachability transfer	Training habits/coachability (generalized), CM learning complex tactical/technical systems (generalized)	2026	Internal reasoning	Elite taekwondo athletes are often good at technical coaching and iterative improvement, boosting adaptation into CM responsibilities.	Open source
[297]	Transfer of perceptual skills in ball sports (tracking/anticipation)	Interactive ball tracking + vision	N/A	Sports perceptual-cognition / motor learning synthesis (high level)	Supports a modest positive correlation because both tennis and soccer midfield require tracking a moving ball, anticipating outcomes, and coordinating body positioning quickly.	Open source
[298]	Task-specific technique limits cross-sport predictive power	Ball manipulation mechanics mismatch	N/A	Motor learning specificity principles (high level)	Limits transfer: soccer central midfield performance depends heavily on soccer-specific ball control, passing/receiving mechanics, dribbling under pressure, and first-touch technique—largely not trained by tennis.	Open source
[299]	Different tactical decision rules across sports reduce correlation	Role/tactical structure differs	N/A	Sports performance determinants / transfer (high level)	Keeps correlation modest because midfield success depends on team structure (spacing, tempo control, pressing triggers, dueling roles) that tennis doesn’t mirror directly.	Open source
[300]	Skill/transfer model (triathlon endurance/pacing + general coordination vs soccer central midfielder match-readiness, duels, ball progression)	N/A (model-based synthesis)	2026	Internal reasoning	Used to estimate a low-to-small correlation because triathlon performance transfers mainly endurance, fatigue resistance, and training discipline. Central midfielder success in soccer depends strongly on sport-specific technique/tactics—first touch, passing range/timing, ball progression under pressure, dueling, and spatial awareness. Triathlon only provides indirect benefits, keeping correlation near ~0.1 with moderate variance depending on prior ball-sport experience.	Open source
[301]	Transfer mapping: volleyball attacker → soccer central midfielder	Internal expert-judgment mapping: volleyball attacker → soccer central midfielder (technique/learning only)	2026	Internal synthesis	Moderate overlap in technique/learning-neutral elements: aerial timing/body control, explosive bursts for repeated actions, and competitive decision-making under fast pressure. Downweighted due to large soccer-midfielder technique gaps: continuous dribbling/ball progression with feet, centralized passing/receiving patterns, tackling/dueling mechanics, and soccer-specific off-ball positioning learned from continuous match flow.	Open source
[302]	Priors: volleyball offense ↔ soccer central midfield	Bayesian prior for cross-over between net-strike jump roles and soccer midfield roles	2026	Internal Bayesian prior	Started from a modest positive baseline (~0.10–0.20) for shared open-skill coordination/reaction demands, then centered near ~0.16 after accounting for the absence of soccer-specific ball progression/passing/tackling training in volleyball attacking.	Open source
[303]	Volleyball libero → soccer central midfielder carry-over estimate	(model-based cross-sport skill mapping)	2026	internal model	Used to justify a moderate correlation via transferable defensive reading/anticipation, repeated movement under pressure, and ball-tracking/first-reaction skills. Down-weighted because soccer central midfield success is dominated by sport-specific ball touch with feet (first touch, passing weight, receiving), spatial decision-making patterns, and (often) tackling/dueling on a rolling ball—all not trained as digging/reception mechanics.	—
[304]	Volleyball middle blocker → soccer central midfielder (general transfer)	Internal skill-transfer heuristic (ball-flight anticipation + quick repositioning + coordination)	2026	Internal model assumptions	Set a modest correlation based on transferable perceptual-motor skills: tracking a ball in flight, anticipating opponents’ actions, quick first steps and repositioning, and coordinated whole-body movement under time pressure.	Open source
[305]	Soccer task mismatch adjustment	Bayesian task-specificity mismatch scaling (net-front timing vs ground-ball progression & tackling)	2026	Internal model assumptions	Reduced correlation because central midfield success depends heavily on soccer-specific technique and decisions: first touch/control of a rolling ball, passing/receiving under pressure, dribbling/turning mechanics, dueling/tackling rules, and continuous spatial organization in a playmaking role—skills not trained by volleyball blocking/attacking.	Open source
[306]	Transfer between team ball sports: anticipation, spatial awareness, and passing/receiving decision-making (overview)	N/A	N/A	Sports science / coaching consensus (no single study specified)	Supports a moderate carry-over because setters and central midfielders are both central organizers who must read play early, coordinate movement, and choose actions quickly.	Open source
[307]	Technical mismatch: volleyball overhead controlled touch vs soccer ball control/passing/tackling mechanics (overview)	N/A	N/A	Sports science / coaching consensus (no single study specified)	Caps the correlation because central midfield success is strongly driven by soccer-specific footwork, ball control, passing range/weight, and defending/pressing mechanics—not trained by setting.	Open source
[308]	Aerial timing/landing overlap but limited for midfield ground play (overview)	N/A	N/A	Sports science / coaching consensus (no single study specified)	Adds some weight because setters frequently jump/land for ball contacts, which can relate to duels, but soccer central midfielders are predominantly ground-based, limiting predictiveness.	Open source
[309]	General sport skill transfer principles	Sports skill transfer/general principles	N/A	General sports science knowledge	Used as baseline that wrestling can transfer balance/leverage/duel composure into soccer, but soccer’s ball-work and decision-making are largely sport-specific.	Open source
[310]	Wrestling-to-soccer midfield transferable components	Wrestling coaching knowledge	N/A	Coaching & applied sports science knowledge	Identifies plausible carry-over: handling physical duels, using body positioning/leverage to shield or resist, staying composed in close contact, and learning to win space in congested areas.	Open source
[311]	Central midfielder performance contributors	Soccer central midfield coaching knowledge	N/A	Coaching & applied sports science knowledge	Identifies dominant determinants not trained directly in wrestling: passing/receiving technique under pressure, first touch, dribbling close control, ball progression patterns, timing of movements, and tactical decision-making with/without the ball.	Open source