Conclusion
adolescent soccer
The main findings of this study were that 11 + warm-up programs have enough potential to improve the JPS and knee valgus in adolescent soccer players and reduce neuromuscular and some biomechanical risk factors during the sport-specific task. Although the result of the current study is in line with previous studies indicating the advantage of 11 + warm-up programs but it seems to better impression on kinematics factors some additional items should be added.