The effect of long-term use of braces on three-dimensional ground reaction forces in people with genu varus during walking

Genu varus is one of the most common lower extremity complications that affect the performance of people during daily activities and exercise. The aim of this study was to investigate the effect of using knee braces on the ground reaction forces in people with genu varus during walking.

The present study was a clinical trial. Thirty male students with genu varus (20-30 years old) were randomly divided into control and intervention groups. The intervention group used knee braces for 8 weeks during their daily activities. The control group did not receive any intervention. Ground reaction force data were recorded by a force plate system during walking.

After 8 weeks, the peak of ground reaction force in the lateral direction during the post-test increased significantly compared to the pre-test (P=0.003). Also, after 8 weeks, the peak of the ground reaction force in the anterior direction during the post-test was significantly increased compared to the pretest (P=0.015).

In general, braces increased the lateral peak values of the ground reaction force, which can lead to increased foot pronation and thus increase the likelihood of long-term injury.