Injury prevention

Document Type



The purpose of this study was to show the connection between two, frequently measured parameter of the knee joint: mobility and stability. The mobility is mainly depends on the ligament system around the knee, while the stability is mainly provided by the muscle system, the balance of muscle forces. In rhythmic gymnastics it is important for an athlete to have an increased range of motion in multiple joints to be successful at competitions, but this heightened flexibility can be the cause of injuries as well. One way to prevent injuries is to have a well-balanced muscle strength in the crucial joints. We examined the knee mobility and the hamstring-quadriceps muscle force ratio (H/Q ratio) of young female rhythmic gymnasts. We found significant correlation between their knee flexion and H/Q ratio, and also a moderate correlation between knee extension and H/Q ratio.