Effect of 8 weeks of training with an elastic band on frequency spectrum of lower limb muscles in genu valgum patients during running

Background. Due to the special structure of the knee joint in genu valgus individuals, neuromuscular characteristics of muscles can be disturbed and this may change postural control. This study aimed to investigate the effect of 8 weeks of training with an elastic band on the frequency spectrum of lower limb muscles in genu valgum patients during running. Methods. This study was a clinical trial in which 24 male students (20-30 years old) were randomly divided into control and experimental groups. Corrective exercises were performed for 8 weeks using an elastic band for the experimental group. The electrical activity of selected muscles was recorded by an electromyography system. Statistical analysis was performed using repeated measures ANOVA test at the significant level of 0.05. Results. Findings showed a significant increase in the frequency spectrum of rectus femoris (P=0.026; d=1.669) after training. Conclusion. Quadriceps muscles increase knee joint stability along with balance during movements. Therefore, increasing the median frequency of knee joint muscles improve balance. Practical Implications. The results of this study showed that exercises with elastic bands are useful for people with Genu valgum, and in particular, the use of these exercises leads to improved balance and performance.