INVESTIGATING THE EFFECT OF 8 WEEKS OF CORRECTIVE EXERCISE WITH AN ELASTIC BAND ON THE FREQUENCY SPECTRUM OF GROUND REACTION FORCES IN YOUNG BOYS WITH GENU VALGUM DURING RUNNING: A RANDOMIZED CLINICAL TRIAL STUDY

Increasing the angle of the valgus by making changes to the lower limbs can
cause changes in the center of gravity of the body relative to the level of reliance and limit balance
control. The aim of this study was to investigate the effects of a corrective exercise course using an
elastic band on the frequency spectrum of ground reaction forces in young boys with genu valgum during
running.
Materials & Methods: The present study was a clinical trial. 24 male students with genu valgum (20-
30 years) were randomly assigned to control and experimental groups. Corrective exercises were
performed for 8 weeks using an elastic band for the experimental group. Ground reaction forces were
recorded by the Bertec force plate. For statistical analysis, SPSS V21 software and analysis of repeated
measure ANOVA were used at a significance level of 0.05.
Results: The results of the present study showed a decrease in the median frequency in the anteriorposterior
direction of the experimental group during the post-test compared to the pre-test (p = 0.025; d
= 3.921). Also, in the experimental group, the frequency band component showed a significant decrease
in anterior-posterior direction during the post-test compared to pre-test (p = 0.028; d = 3.843).
Conclusion: Due to the reduction in median frequency, it can be concluded that the corrective exercises
used were able to reduce the incoming forces in the anterior-posterior direction. With the reduction of
the frequency band during corrective exercises, the participation and activity of motor performance have
also decreased.