does SMVT improvement knee alignment during DVJ and Vertical Jump in Volleyball Players whit Knee Valgus? A Randomized Controlled Trial

سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 37

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شناسه ملی سند علمی:

SSRC13_381

تاریخ نمایه سازی: 8 شهریور 1401

چکیده مقاله:

Although the knee joint is the second most common volleyball injury, it ranks is first in terms of the severity of the injury. The most common knee ligament injury is ruptured ACL. The ACL injury occurs in ۷۰% to ۷۵% of cases with a non contact mechanism. The knee valgus is a key risk factor for non contact ACL injury, so that knee valgus ۸۸% can predict ACL injury in female athletes. The Sports Metrics Volleyball Training (SMVT) is one of the most successful ACL injury prevention protocols in the healthy female volleyball player’s. But its effect on player’s whit knee valgus has not been studied. Therefore, this study investigates the effect of the SMVT on improvement knee alignment during Drop Vertical Jump (DVJ) and vertical jump height in female volleyball player’s whit knee valgus.The subjects of study consist of ۳۰ young female volleyball players with knee valgus, (TG: Training Group, n=۱۵, age:۲۰.۴±۱.۸ years, weight ۵۷.۴±۶.۷ kg, height ۱۶۶.۴±۶.۳ cm, BMI ۲۰.۶±۱.۶ kg/m۲, and experience ۵.۴±۱.۹ years) and (CG: Control Group, n=۱۵, age:۲۱.۲±۲.۵ years, weight ۶۰.۸±۷.۸ kg, height ۱۶۹.۹±۶.۳ cm, BMI ۲۰.۹±۱.۴ kg/ m۲, and experience ۵.۵±۱.۷ years). The TG performed ۶ weeks SMVT and CG continued normal exercises. Pre-test and post-test assessment’s included DVJ and vertical jump test. The SPSS (version ۲۵) and the ANCOVA test (P≤۰.۰۵) was used, to analyze the statistical data.The analysis of covariance test results showed that The TG experienced significant reduced (P<۰.۰۱) in knee valgus during DVJ, in the maximum knee flexion frame (from ۲۳/۱º to ۷/۸º), and significant (P<۰.۰۱) increased vertical jump height (from ۳۰.۴ to ۳۴ cm).The SMVT is a specialized neuromuscular exercise designed to prevention knee injuries in female volleyball players. Due to the correction key risk factors of noncontact ACL injury (knee valgus), and increased vertical jump performance, it seems that in female volleyball players with knee valgus, the SMVT can help to prevent noncontact knee injuries during functional activities like DVJ, and it can also help to improve performance. Therefore, performing SMVT is recommended for female Volleyball player’s whit knee valgus