does SMVT improvement knee alignment during DVJ and Vertical Jump in Volleyball Players whit Knee Valgus? A Randomized Controlled Trial
Paper ID : 1646-SSRC-13TH
Oral / Poster Presentation File
1646-SSRC-13TH
Authors:
hemn mohammadi *1, masoumeh khosravani2
1, Department of Physical Education and Sport Sciences, Faculty of Humanity Sciences, Kurdistan University, Sanandaj, Iran.
2Master of corrective movment of and sports pathology , Faculty of Humanity Sciences, University of Kurdistan, Sanandaj, Iran
Abstract:
Introduction: 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 70% to 75% of cases with a non-contact mechanism. The knee valgus is a key risk factor for non-contact ACL injury, so that knee valgus 88% 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.
Methods: The subjects of study consist of 30 young female volleyball players with knee valgus, (TG: Training Group, n=15, age:20.4±1.8 years, weight 57.4±6.7 kg, height 166.4±6.3 cm, BMI 20.6±1.6 kg/m2, and experience 5.4±1.9 years) and (CG: Control Group, n=15, age:21.2±2.5 years, weight 60.8±7.8 kg, height 169.9±6.3 cm, BMI 20.9±1.4 kg/ m2, and experience 5.5±1.7 years). The TG performed 6 weeks SMVT and CG continued normal exercises. Pre-test and post-test assessment’s included DVJ and vertical jump test. The SPSS (version 25) and the ANCOVA test (P≤0.05) was used, to analyze the statistical data.
Results: The analysis of covariance test results showed that The TG experienced significant reduced (P<0.01) in knee valgus during DVJ, in the maximum knee flexion frame (from 23/1º to 7/8º), and significant (P<0.01) increased vertical jump height (from 30.4 to 34 cm).
Conclusion: 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
Keywords:
Keywords: Sports-metrics, Volleyball, Vertical Jump, Valgus, Injury Prevention, ACL
Status : Abstract Accepted (Poster Presentation)
13th International Congress on Sport Sciences 13th International Congress on Sport Sciences
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