عنوان مقاله [English]
Background and aim: Dynamic knee valgus (DKV) is an abnormal movement pattern visually characterized by excessive medial movement of knees during weight bearing. Reduced strength of hip muscles might correlate with increased knee valgus. The aim of this study was to investigate the effect of plyometric exercise on hip strength in female with dynamic knee valgus.
Methods: In this randomize controlled trial, 26 female with dynamic knee valgus were randomly assigned into experimental and control group. Hip extensor, abductor and external rotator strength have been measured using digital dynamometer. During 8 weeks, the experimental group participated in plyometric exercises, but the control group participated only in their routine training sessions. Data were analyzed by Mixed Repeated Measures ANOVA (p≤.05).
Results: The results of study showed hip extensor (F=18.367, P=0.003), abductor (F=23.271, P=0.000) and external rotator (F=14.631, P= 0.001) was improved in experimental group compared to the control.
Conclusion: The results of this study provide evidence of the positive effect of plyometric exercises on the hip strength in female athletes with dynamic knee valgus. Therefore, according to the results of this study, we can say that eight weeks of plyometric exercises in female athlete with knee dynamic valgus can increase the modifiable risk factor of ACL injury, such as strength factors.