Updated May 2026. Written by the Upwell Health Collective clinical team. Clinically reviewed May 2026. Next review due November 2026. For educational purposes only — not a substitute for individual clinical assessment.
6.2 times. That is how much more likely a female AFL player is to rupture her ACL than a male AFL player, when exposure is accounted for. In the AFLW's inaugural 2017 season, the ACL injury rate was 4.31 per 1000 player hours. In the men's AFL across the same period: 0.70 per 1000 player hours. By 2018, the AFLW rate had climbed to 6.47 — 9.2 times the AFL rate.
The AFLW has the highest sex difference in ACL injury rates across team sports worldwide. Not just in Australia. Worldwide (Creating Prep to Play PRO, J Sci Med Sport, 2023).
And yet the conversation in community sport, in school sport, in club coaching circles, is still dominated by a single narrative: women get more ACL injuries because of their biology. Hormones. Hips. Anatomy. The body is the problem.
The evidence, especially from 2020 onwards, says something far more empowering than that.
The biology narrative is not entirely wrong. But it is dramatically incomplete. And in being incomplete, it is dangerous — because it implies the problem is unfixable. It isn't.
Here is what the full evidence actually shows.
Anatomical and hormonal differences between the sexes are real and documented:
None of these factors are destiny. Most are modifiable.
Here is the piece of the puzzle that gets far too little attention, and that the AFLW data makes strikingly clear.
When the AFLW launched in 2017, the vast majority of its players had little to no Australian football experience from childhood. They were elite athletes in other sports — netballers, soccer players, recreational footballers — who had not accumulated the thousands of hours of pivoting, cutting, jumping, landing, and change of direction that their male AFL counterparts had been building since Under-9s. The neuromuscular patterns, the proprioceptive adaptations, the movement habits — none of that preparation existed at scale.
Research into the AFLW explicitly names this: "The relative infancy of participation by women and girls in AF results in many AFLW players having limited to no AF experience during their youth" and proposes that the lack of AF-specific movement skills among inaugural players likely contributed to the heightened ACL risk (ACL injuries in Australian football: you're asking the wrong question, PMC7173994).
This is not a biological story. It is a training history story. It is a physical literacy story. And it is a story about the decades of structural inequality in access to organised sport, strength and conditioning, and skilled movement coaching for girls and women.
Female athletes have historically had less access to:
The result is a population of athletes entering elite sport with less of the foundational physical preparation that protects the knee. Fix the training environment, and you move the needle far more than any hormonal intervention ever could.
A 2024 meta-analysis of neuromuscular training (NMT) programs in female team sport athletes found NMT significantly reduced overall knee injury risk by 22% (RR = 0.78, 95% CI 0.65–0.94) and ACL injury risk by 50% (RR = 0.50, 95% CI 0.31–0.81) (Neuromuscular training for preventing knee injuries in female team athletes, PMC12581765, 2025).
Fifty percent. Half of ACL injuries in female team sport athletes are preventable with a structured neuromuscular warm-up program done consistently.
A broader meta-analysis of ACL injury prevention programs found an overall risk reduction of 64% (RR = 0.36 of the control group) across the pooled evidence (Reducing ACL injury risk: a meta-analysis, PMC12310081).
These are among the strongest preventive effect sizes in all of sports medicine. The intervention is not complicated. It does not require expensive equipment. It requires commitment, consistency, and a coach who understands why it matters.
The 2023 AFLW injury report (AFL, 2024) showed ACL injury incidence during matches at 2.51 per 1000 player hours — down from the rates seen in the early AFLW seasons. ACL injuries remained the leading cause of missed matches in 2023, resulting in 5.44 missed AFLW matches per club during the season.
There is genuinely encouraging news in this trend. The overall ACL incidence rate including training injuries has not risen over the last four seasons despite the average number of games per club increasing from 6.6 to 11 in 2023 — a 67% increase in game exposure. This is a meaningful signal that the investment in Prep-to-Play PRO, S&C programs, and structural support within the AFLW is having an effect.
But 2.51 per 1000 player hours versus 0.70 in the men's competition remains an enormous gap. And at community level — where most Australian women play — the infrastructure and the prevention programs are far less consistently applied.
Prep-to-Play is the AFL's neuromuscular warm-up program specifically developed for women and girls playing Australian football. It was developed by researchers at La Trobe University in partnership with the AFL and community stakeholders, co-designed with players, coaches, and medical staff, and informed by the best available global evidence on ACL injury prevention.
Prep-to-Play PRO — the elite version implemented in AFLW — was developed through a rigorous seven-step intervention process, informed by video analysis of 10 of 17 AFLW ACL injuries in the early seasons, and refined specifically for the movements and demands of Australian football (Creating Prep to Play PRO, PMC9923429, 2023).
A 2024 BJSM implementation study (Bruder et al., BJSM, 2024) evaluated Prep-to-Play PRO across AFLW using the RE-AIM framework — Reach, Effectiveness, Adoption, Implementation, Maintenance. The results showed meaningful reach and adoption, with players and staff believing it could reduce ACL injury risk. The barriers identified were primarily time and session structure — challenges that apply to prevention programs in almost every sport.
What Prep-to-Play consists of:
It is designed to take 15–20 minutes, to be completed before every training session and game, and to require no additional equipment beyond a football and open space. It is free and publicly available through the AFL's coach development platform.
If you coach women's or girls' football at any level: run Prep-to-Play. Every session, every game. The evidence for it is as strong as anything in sports medicine.
The ACL sex gap is not unique to Australian football. Across multi-directional team sports, female athletes face a 2 to 9 times higher rate of non-contact ACL injury than male counterparts. The specific multiplier varies by sport, study, and population, but the direction of the finding is consistent across decades of literature.
The sports most implicated: basketball, netball, soccer, handball, and Australian football. All involve high-speed change of direction, jump-landing under pressure, and rotational loads on the knee.
And across all of them, the same pattern holds: neuromuscular training programs, consistently implemented, dramatically reduce the risk.
Here is the reframe that matters most for every female athlete, every parent, every coach reading this:
The anatomical differences between female and male knees are real. The hormonal fluctuations are real. But they are not the primary driver of the enormous gap in ACL injury rates. The primary driver is the accumulated difference in physical preparation — and that is something we can change.
The female athlete who has spent her adolescence with access to structured strength and conditioning, skilled coaching in landing and cutting mechanics, and consistent neuromuscular warm-up programs is not facing the same ACL risk as one who hasn't. The biology is the same. The preparation is different. And the preparation is what determines the outcome.
This is why physical literacy from childhood matters. Why girls' sport programs need the same quality of physical preparation infrastructure as boys' programs. Why community clubs running women's teams need to understand that a neuromuscular warm-up program is not optional wellness — it is injury prevention with a 50% risk reduction effect.
If you are a female athlete currently in ACL rehabilitation, there are several things that need to be explicit in your programme that are sometimes missed.
ACL re-injury in female athletes occurs at higher rates than in males, particularly in young athletes returning to pivoting sport. Psychological readiness data shows that females report fear of re-injury as a reason for not returning to their prior level of sport participation more frequently than males (Siegel, 2024; Frontiers in Psychology, 2025). This fear is data, not weakness — and it needs to be addressed explicitly in rehabilitation through graded exposure, TSK-11 monitoring, and appropriate sport psychology referral where indicated.
The 2025 study in Frontiers in Psychology found a moderate negative correlation between ACL-RSI and TSK-11 scores in both female and male adolescents and young adults — greater kinesiophobia consistently associated with lower psychological readiness. In female athletes specifically, sex-based differences in kinesiophobia after ACLR have been reported, with females citing fear of re-injury as a barrier more frequently. At Upwell, a TSK-11 score of 19 or above is a hard stop in the MRSS 2.0 return-to-sport protocol, regardless of physical test results.
Young female athletes returning to high-level pivoting sport — particularly those with generalised joint laxity, high Q-angle, or high-grade pivot shift on examination — should have an explicit conversation with their surgeon about Lateral Extra-Articular Tenodesis (LET). The STABILITY trial (Getgood et al., 2020) showed LET added to hamstring reconstruction reduced graft failure or persistent instability from 41% to 25% in high-risk young athletes. For a young female footballer or netballer, this conversation is worth having.
The same quadriceps-dominant, less hip-flexed, more knee-valgus-prone movement patterns that contribute to initial ACL injury risk can persist after reconstruction if movement is not specifically retrained. At Upwell, landing mechanics, deceleration, change of direction, and hip-dominant movement strategies are coached explicitly throughout rehabilitation — not assumed to self-correct with strength training alone.
The highest-risk period for ACL re-injury is the first 12–24 months after return to sport. Female athletes returning to pivoting sport need an ongoing neuromuscular prevention program as part of their warm-up — not as an optional extra, but as a non-negotiable component of safe return. Prep-to-Play, FIFA 11+, the PEP program, and Netball Australia's KNEE program all qualify. The program that works is the one that is actually done, consistently.
The most powerful ACL intervention for female athletes isn't a post-injury programme. It's giving girls the same quality of physical preparation that boys have historically taken for granted.
That means:
The AFLW is getting better at this. The gap in ACL injury rates is real evidence that when women have more training history, better physical preparation, and equivalent structural support, the gap narrows. That's the lesson. And it applies in every sport, at every level.
If you coach women's or girls' sport at any level, here are the most evidence-based actions you can take:
1. Implement a neuromuscular warm-up program consistently. Prep-to-Play for AFL. FIFA 11+ for soccer. The KNEE program for netball. PEP program for multidirectional sports. Run it before every training session and every game. 15–20 minutes. No exceptions. This single intervention can reduce ACL injury risk by 50% in female team athletes (PMC12581765, 2025).
2. Coach landing mechanics explicitly. Don't assume athletes will self-correct. Teach and cue: feet shoulder width, soft knees, hip hinge on landing, no knee cave. Use video feedback if possible. Make landing quality a visible, coached skill.
3. Include hip and glute strength work. Weak hip abductors and external rotators allow the femur to internally rotate under load, collapsing the knee into valgus from above. Bridges, single-leg deadlifts, lateral band walks, and step-ups should be regular features of training, not just rehabilitation.
4. Progress change of direction deliberately. Start with planned, slow COD. Build to faster planned. Then reactive, with unpredictable cues. Athletes who only practice planned cuts are not prepared for the reactive demands of match play.
5. Take swelling and knee pain seriously. An athlete who reports their knee swelling after training or who is limping at any point during a session needs assessment, not encouragement to push through. Swelling is physiological data.
Your anatomy is not your destiny. The elevated ACL risk that comes with being a female athlete in a pivoting sport is real — but it is substantially reducible with the right preparation and the right program.
Strength training is protection. Strong quads and hamstrings, a strong hip complex, and the ability to produce and absorb force efficiently are your best structural protection against ACL injury. If you are not doing structured strength training, start now.
The warm-up is not optional. The evidence for neuromuscular warm-up programs in female athletes is among the strongest in all of sports medicine. A 15-minute structured warm-up before every session and game is not a ritual — it is injury prevention with a 50% risk reduction effect.
If you've already had an ACL injury: your rehabilitation needs to be comprehensive, criteria-based, and psychologically complete. Physical clearance is not the same as readiness. Return-to-sport assessment should include hop testing, psychological readiness screening, and at Upwell, the full MRSS 2.0 protocol including fatigued testing. Contact our team if you want to talk through where you're at.
Upwell's approach to ACL rehabilitation and prevention in female athletes is built around the understanding that the sex gap in ACL injury is driven more by preparation history than by biology — and that the most powerful intervention is building complete physical preparation for each individual athlete.
Our physiotherapy and exercise physiology teams work together throughout ACL rehabilitation to address all six systems — Tissue, Force, Movement, Nervous System, Trust, and Life Load — with specific attention to the movement patterns, psychological readiness factors, and strength imbalances that are most relevant in female athletes.
Key elements of our female athlete ACL programme:
If you or a female athlete you know is navigating ACL injury — whether prevention, acute injury assessment, or rehabilitation — get in touch with our team or book online. The gap is real. The solution is available.
Female athletes get ACL injuries at 2 to 9 times the rate of males depending on the sport. In AFLW, the gap is 6 times and was once 9.2 times. This is the largest sex-based ACL disparity in team sports in the world.
The biology is part of the picture: Q-angle, laxity, hormonal influences, neuromuscular patterns. But these are not the primary driver of a gap of that magnitude.
The primary driver is decades of differential investment in physical preparation for female athletes. Less structured strength training from adolescence. Less skilled movement coaching in youth sport. Less neuromuscular development accumulated before entering elite competition.
The solution is not complicated. Neuromuscular warm-up programs consistently implemented can reduce ACL injury risk by 50%. Structured strength and conditioning builds the force capacity and landing mechanics that protect the knee. Physical literacy from childhood accumulates the preparation that elite sport demands.
The gap is not biological inevitability. It is a structural problem with structural solutions. And it starts with coaches, clubs, and parents taking women's sport preparation as seriously as men's.
This article is for educational purposes only and does not substitute for individual clinical assessment. If you have had a knee injury or are concerned about ACL injury risk, please see a qualified physiotherapist or sports doctor for personalised advice. Information last reviewed May 2026.