Background: Female adolescent Sepak takraw players have a 3 times higher incidence of knee injury than male. The Prevent Injury Enhance Performance (PEP) program have the potential to significantly reduce knee injury incidence rate via biomotor ability improving. It was applied to train in various group but the effectiveness in adolescent female athlete rarely knew.

Objective: To examine the effectiveness of the PEP in reducing injury incidence rates among adolescent female Sepak takraw players.

Material and Method: The PEP and control group was fifty-two female adolescent Sepak takraw players aged 14-19 years who were randomly assigned into 2 groups. During warm up period, PEP group was trained 3 times in a week for 8 weeks; in contrast, control group was trained no specialized program. Their muscle power and strength, agility, and flexibility were assessed at baseline, at 4 weeks, and 8 weeks. At 6 months after training, number and characteristics of injuries in both groups were measured by the Orthopedics.

Results: Incidence rate on average of PEP and control groups was about 5.32 and 15.96/100,000 AEs. The highest injury was killer, followed by server and feeder. Chondromalacia patella was mostly found, followed by complete tear of ACL, muscle soreness, and higher than control group. Hyperextension and twist mechanism were causative factor for both groups. The result of biomotor ability was found PEP group had a significantly different peak power and jump height higher than control group (p<0.001). There was the significant difference of conventional concentric knee ratios between groups (p<0.001).

Conclusion: Our findings indicated the PEP program effectively reduce knee injury, resulting from the strategy could improve the biomotor ability.