Document Type : Research Paper
Authors
1
Sport Injuries and Corrective Exercises Department, Sport Sciences Faculty, Razi University, Kermanshah, Iran
2
Department of Sport Injuries and Corrective Exercises, Faculty of, Sports Sciences, Razi University, Kermanshah, Iran.
3
Sport Physiology Department, Sport Sciences Faculty, Razi University, Kermanshah, Iran
4
Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, 84084, Baronissi, Italy
10.22084/rsr.2025.29202.1736
Abstract
Background and Aim: This study aimed to determine the effect of 12 sessions of neuromuscular exercises with and without tDCS on changes of the knee-controlling muscles in single—and double-leg squats of taekwondo athletes with dynamic knee valgus (DKV).
Methods: Thirty-four taekwondo athletes with DKV defect were purposefully selected and randomly divided into two experimental groups and a control group. Both groups received three sessions of neuromuscular training for 4 weeks, however, the experimental group received real stimulation and the control group received sham stimulation. Before and after 12 sessions of intervention, the activity of the knee muscles controlling was evaluated in double and single leg squat (SLS & DLS) skills.
Results: Both experimental and control groups showed a significant improvement in DKV factor (p<0.05). However, between-group comparisons did not show a significant difference (p<0.05). Within-group comparisons showed that in both groups, the activity of all muscles (except the lateral gastrocnemius muscle in the control group and SLS) improved significantly (p<0.05). However, between-group comparisons showed that the two study groups in double squat skills only in the activity of the vastus lateralis muscles (p=0.02) and gluteus Maximus (p=0.02) and in the SLS task only in the activity of the vastus lateralis (p=0.001) and lateral gastrocnemius (p=0.05) were statistically significantly different.
Conclusion: Based on the results of the present study, it was determined; applying a course of neuromuscular training with and without combination with transcranial direct current stimulation can be effective on the dynamic valgus of the knee and the activity of the muscles acting on the knee. And this increases the stability of the knee during jumping movements, which increases the risk of knee injuries; to improve.
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