Prevention training halves ACL rupture risk
Structured training programs reduce anterior cruciate ligament (ACL) ruptures in athletes.
*Systematic review and meta-analysis of trials; Level 2a (OCEBM).
Citation
Watson SL, Gohal C, Owen MM, Bajaj PM, Plantz MA, Tjong VK. Team Physician’s Corner: A Systematic Review and Meta-analysis of Anterior Cruciate Ligament Injury Prevention Programs. The American Journal of Sports Medicine. 2026;54(3):733–740. doi:10.1177/03635465251376670
Background
ACL ruptures are common, costly, and can cause long-term knee problems. Many teams use structured warm-up and movement-training programs, but effectiveness varies across studies.
Patients
25,166 athletes (mean age 19.3 years; mostly female) in handball, soccer, basketball, or volleyball. Excluded: treatment/rehabilitation studies, reinjury after reconstruction, and studies reporting only movement risk factors (not injury rates).
Intervention
ACL injury prevention programs emphasizing strength, landing/cutting technique, agility, and balance; some used balance boards.
Control
Usual training without the prevention program.
Outcome
ACL rupture incidence (primary).
Follow-up Period
At least 1 season (average 1.3 seasons).
Results
| Analysis |
Risk ratio (95% confidence interval) |
| All athletes (primary) |
0.46 (0.36 to 0.57) |
| Female athletes |
0.57 (0.43 to 0.74) |
| Age under 18 years |
0.35 (0.22 to 0.55) |
| Age 18 years and older |
0.50 (0.38 to 0.64) |
| Soccer |
0.30 (0.19 to 0.46) |
| Handball |
0.66 (0.46 to 0.96) |
| Programs including balance boards |
0.49 (0.35 to 0.67) |
Overall absolute ACL rupture rates were 1.0% with programs vs 2.3% with usual training (absolute reduction 1.3%); number needed to train ≈ 77 athletes for one season to prevent 1 ACL rupture.
Limitations
Studies mixed randomized and non-randomized designs, with varying programs and adherence. Most participants were female team-sport athletes, limiting generalizability to other sports or individual training. Event rates were low, and the review was not registered in advance.
Funding
No external funding reported; one author consulted for Smith & Nephew.
Clinical Application
Use a brief, repeatable neuromuscular warm-up program in team practices; expect meaningful ACL rupture reduction, especially in soccer and youth athletes.