Softball injury prevention for girls.
A high-volume overhead-throwing sport with a windmill pitcher who never gets a pitch count.
Shoulder
Range-of-motion deficits prospectively predict shoulder and elbow injury in high school softball players.
4 games
A common single-pitcher tournament weekend — the load pattern most implicated in arm injury.
8 min
Arm-care protocol run before throwing and after pitching.
Softball's injury profile is dominated by the upper limb. Prospective work in high school softball and baseball players found shoulder range-of-motion deficits predicted subsequent shoulder and elbow injury, and softball athletes carry the added issue of the windmill pitch — a full-arm-circle motion generating large distraction forces at the shoulder, repeated hundreds of times in a tournament weekend.
The structural problem is that softball, unlike baseball, has historically had no enforced pitch-count rules at most levels. A single pitcher may throw four games in a weekend. Managing that volume is the highest-value prevention action available in this sport.
What actually injures softball players
Shoulder overuse (cuff and biceps/labral)
Most common in pitchers and catchersMechanism: Repeated high-velocity arm circle with distraction and deceleration load at the shoulder.
Female-specific: Measured loss of shoulder range of motion relative to the non-throwing side is an early, trackable warning sign in high school throwers.1
Medial elbow pain / ulnar nerve irritation
Common in windmill pitchersMechanism: Valgus and traction load through the medial elbow across high pitch volumes; the brush contact of the windmill adds direct irritation.
Female-specific: Often dismissed because softball is assumed to be a low-risk motion; persistent medial elbow pain in a pitcher needs a load reduction and evaluation.1
Sliding and base-contact injuries
Frequent acute mechanismMechanism: Head-first slides producing hand, wrist, and shoulder injury; feet-first slides catching a fixed base producing ankle and knee injury.
Female-specific: Break-away bases reduce sliding injuries substantially and are an inexpensive facility-level fix.2
Facial and head impact
Low frequency, high severityMechanism: Batted-ball contact with a corner infielder or pitcher at short reaction distance.
Female-specific: Defensive face masks for pitchers and corner infielders are the direct mitigation; concussion protocol applies fully.5
Why the risk is different for girls
These factors change what prevention has to address — they are not reasons to train girls less.
The windmill is not automatically safe
The underhand motion is often assumed to spare the arm compared with overhand pitching. Force measurements at the shoulder during the windmill are substantial, and injury surveillance in high school softball does not support treating pitchers as low-risk. They need pitch counts and rest days like any throwing athlete.1
Energy availability comes before every other adaptation
When an athlete does not eat enough to cover the energy her training burns, the body downregulates the systems it treats as optional first — menstrual function, bone remodeling, immune response, and tissue repair. The IOC calls this Relative Energy Deficiency in Sport (REDs), and it raises bone stress injury and soft-tissue injury risk independent of how good her mechanics are. Amenorrhea (no period for three or more months) in an athlete is a clinical finding, not a convenience.8,9
Puberty changes the machine mid-season
The adolescent growth spurt lengthens the levers (femur, tibia) faster than the neuromuscular system recalibrates, and in girls the strength gain that accompanies growth is smaller than in boys. The result is a two- to three-year window of reduced dynamic knee control, wider dynamic valgus on landing, and higher relative injury risk. Programming should get more — not less — landing and single-leg work through this window.7
Menstrual-cycle phase is a variable, not a taboo
Hormonal fluctuation across the cycle affects laxity, neuromuscular control, thermoregulation, and perceived exertion, and prospective data in international footballers found injury incidence differed by cycle phase. The practical action is not to restrict training but to track: a simple cycle log next to load data lets athletes and staff see patterns and adjust intensity, hydration, and fueling.10
The protocol, block by block
Run before throwing every day, and again as a short recovery version after pitching.
- 2 min
General warm-up
Jog, arm circles, trunk rotations, hip openers — the arm should never be the first thing to move.
- Whole body first
- Gradual range
- Get warm before you throw
- 2 min
Scapular activation
Band rows, prone Y-T-W, serratus punch, wall slides.
- Blade sets before the arm moves
- No shrug
- Slow tempo
- 2 min
Rotator cuff and forearm
Band external and internal rotation, 90/90 rotation, wrist flexor and extensor work, grip.
- Elbow stays fixed
- Light load, high control
- Both directions
- 1 min
Legs and trunk for the throw
Lateral band walks, split-squat holds, anti-rotation press.
- Power comes from the ground
- Brace the trunk
- Stay tall
- 1 min
Progressive throwing
Throw at increasing distance and effort — never start at full intent.
- Build distance before intent
- Stop if it pinches
- Finish with your working distance
What to check, and when to escalate
Shoulder rotation, both sides
Measure passive internal and external rotation at 90° abduction, throwing versus non-throwing arm, preseason and mid-season.
Red flag: Growing internal-rotation deficit or total-rotation loss on the throwing side.
Pitch log audit
Review actual pitch counts, including bullpens and lessons, across the last four weeks.
Red flag: Back-to-back high-count days, or a weekend total that exceeds the athlete's usual weekly volume.
Scapular control
Watch a wall slide and a push-up plus from behind.
Red flag: Winging or early shrug — a scapular strength deficit that will load the cuff.
Load rules that prevent overuse
- Keep a written pitch count per day and per weekend, including lessons and bullpens, and set a rest-day rule after high-count outings.
- No pitching on consecutive high-volume days for athletes under 16; rotate at least two pitchers on a tournament roster.
- Take at least two to three consecutive months off from competitive throwing each year.
- Any pain during or after throwing means stop pitching and reduce load — pain is not a conditioning issue in a young arm.
Gear & equipment
- Defensive face masks for pitchers and corner infielders — batted-ball reaction distance is short.
- Break-away bases, which substantially reduce sliding injuries.
- Catcher's gear that actually fits; oversized helmets and chest protectors are worse than none in a foul-tip.
Stages, not dates
Progression is criteria-based and clinician-led. A calendar date is not a clearance.
- 1
1. Pain-free at rest and daily use
No night pain, full range restored, no tenderness at the medial elbow or cuff.
- 2
2. Strength and range symmetry
Cuff and scapular strength restored; total shoulder rotation within normal side-to-side range.
- 3
3. Interval throwing program
Structured distance-and-volume progression, pain-free, with rest days between steps.
- 4
4. Return to the circle
Graded bullpen volume before live pitching; count every pitch.
- 5
5. Competition
Full workload tolerated with no next-day symptoms; pitch limits documented before the first tournament.
Questions coaches and parents ask
Do softball pitchers need pitch counts?
Yes. The assumption that the windmill motion is harmless is not supported by injury surveillance in high school softball. Track pitches per day and per weekend, include lessons and bullpens, and build in rest days after high-count outings.
My daughter's shoulder is tight after games — is that normal?
Some post-game soreness is expected; progressive loss of rotation range on the throwing side is not. Measured range-of-motion deficits predict later shoulder and elbow injury, so a tightening throwing shoulder is a signal to reduce volume and start structured arm care.
How often does this program need to be run to work?
Meta-analyses of neuromuscular training find the protective effect tracks with dose: roughly two or more sessions per week, sustained across the full season, is the threshold where injury reductions become reliable. Programs run only in preseason lose most of their benefit by mid-season.
Should girls train differently from boys?
The exercises are largely the same; the emphasis and the dose differ. Female athletes get disproportionate benefit from posterior-chain strength, single-leg landing control, and trunk stability work, and they need explicit attention to energy availability, bone health, and menstrual function — areas boys' programs typically ignore entirely.
Is strength training safe for adolescent girls?
Yes. Supervised, technique-first resistance training is safe from pre-adolescence and is one of the most consistently protective interventions in sports medicine. The risk in youth sport is under-training strength, not over-training it.
Every claim, sourced
12 peer-reviewed sources. Each links to a PubMed search so you can read the original.
- 1
Shanley E, Rauh MJ, Michener LA, Ellenbecker TS, Garrison JC, Thigpen CA. Shoulder range of motion measures as risk factors for shoulder and elbow injuries in high school softball and baseball players. Am J Sports Med. 2011;39(9):1997-2006.
PubMed - 2
Kerr ZY, Marshall SW, Dompier TP, Corlette J, Klossner DA, Gilchrist J. College sports-related injuries — United States, 2009-10 through 2013-14 academic years. MMWR Morb Mortal Wkly Rep. 2015;64(48):1330-1336.
PubMed - 3
Kox LS, Kuijer PPFM, Kerkhoffs GMMJ, Maas M, Frings-Dresen MHW. Prevalence, incidence and risk factors for overuse injuries of the wrist in young athletes: a systematic review. Br J Sports Med. 2015;49(18):1189-1196.
PubMed - 4
Jayanthi N, Pinkham C, Dugas L, Patrick B, LaBella C. Sports specialization in young athletes: evidence-based recommendations. Sports Health. 2013;5(3):251-257.
PubMed - 5
Patricios JS, Schneider KJ, Dvorak J, et al. Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. Br J Sports Med. 2023;57(11):695-711.
PubMed - 6
Lauersen JB, Bertelsen DM, Andersen LB. The effectiveness of exercise interventions to prevent sports injuries: a systematic review and meta-analysis of randomised controlled trials. Br J Sports Med. 2014;48(11):871-877.
PubMed - 7
Hewett TE, Myer GD, Ford KR, et al. Biomechanical measures of neuromuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes: a prospective study. Am J Sports Med. 2005;33(4):492-501.
PubMed - 8
Mountjoy M, Ackerman KE, Bailey DM, et al. 2023 International Olympic Committee's (IOC) consensus statement on Relative Energy Deficiency in Sport (REDs). Br J Sports Med. 2023;57(17):1073-1097.
PubMed - 9
De Souza MJ, Nattiv A, Joy E, et al. 2014 Female Athlete Triad Coalition consensus statement on treatment and return to play of the female athlete triad. Br J Sports Med. 2014;48(4):289.
PubMed - 10
Martin D, Timmins K, Cowie C, et al. Injury incidence across the menstrual cycle in international footballers. Front Sports Act Living. 2021;3:616999.
PubMed - 11
Sugimoto D, Myer GD, Foss KDB, Hewett TE. Dosage effects of neuromuscular training intervention to reduce anterior cruciate ligament injuries in female athletes: meta- and sub-group analyses. Sports Med. 2014;44(4):551-562.
PubMed - 12
Gabbett TJ. The training—injury prevention paradox: should athletes be training smarter and harder? Br J Sports Med. 2016;50(5):273-280.
PubMed