Effect of Six Weeks of Progressive Jump-Landing Training on Jump Shooting Accuracy and Knee Valgus Angle in Male Basketball Players with Dynamic Knee Valgus

Saeed Ghobadi Nezha,Seyyed Hosein Hoseini,Ali Asghar Norasteh

doi:10.32598/biomechanics.7.2.6

Abstract

Objective: Dynamic Knee Valgus (DKV) causes many acute and chronic knee injuries during deceleration and landing in sports activities and can affect the athletes’ specific skills. This study aims to investigate the effect of 6 weeks of progressive jump-landing training on jump shooting accuracy and knee valgus angle in male basketball players with DKV. Methods: This is a quasi-experimental study conducted on 24 male basketball players with DKV in Mazandaran, who were selected purposefully. They were randomly divided into training and control groups. Their jump shooting accuracy was assessed by Boddington’s Basketball Jump Shooting Accuracy Test, and their DKV angle was measured by a two-dimensional evaluation method in Quinoa software. In addition to their routine exercises, the training group performed the jump-landing training for 6 weeks at 3 sessions per week, while the control group performed their usual exercises only. In order to compare the two study groups, ANCOVA was used. Results: The progressive jump-landing program had a significant effect on jump shooting accuracy (P=0.001) and DKV angle (P=0.001). Conclusion: Six weeks of progressive jump-landing training can improve the jump shooting accuracy and knee valgus angle in basketball players with DKV. Therefore, jump landing exercises are recommended for improving the jump shooting skill and knee alignment in these athletes.

Highlights

This study aims to investigate the effect of 6 weeks of progressive jump-landing training on jump shoot accuracy and knee valgus angle of basketball players with Dynamic Knee Valgus (DKV)
The results showed that in the post-test phase, the jump shooting accuracy of the training group was significantly higher compared to the control group (P=0.001) while the DKV angle of the training group was significantly lower compared to the control group (P=0.001)
The purpose of the present study was to evaluate the effectiveness of 6 weeks of progressive jump-landing training on jump shooting accuracy and knee valgus angle of basketball players with DKV

Summary

Methods

This is a quasi-experimental and interventional study with a pre-test/post-test design. The study population consists of all male basketball players with DKV aged 16-20 year in Mazandaran, Iran who had at least 4 years of regular exercise, three times per week. The number of samples was estimated 24 using G power software, considering r2=0.50, test power=0.80 and alpha=0.05 according to previous studies [10, 11]. Subjects were randomly divided into two training and control groups. The training group, in addition to their usual exercises, performed the jump-landing training for 6 weeks, 3 sessions per week, while the control group performed their routine exercises only. In order to identify people with DKV, the double-leg Squat test was used. Subjects’ shooting skills were assessed using Boddington’s Basketball Jump Shooting Accuracy Test, and DKV angle was measured using a camera (Nikon D3300, Thailand) and Quinoa software at two sessions

Extended Abstract

Results

Discussion and Conclusion

Conflicts of interest

Refrences