Abstract
Ankle sprains are the most common lower extremity injury in sports situations. In addition, a high recurrence rate and residual aftereffects are problematic. The residual condition is called chronic ankle instability, and it causes a decrease in performance due to instability. One of the treatment methods for (CAI) is insole therapy. Insole therapy is a treatment method in which an uneven insole is inserted into the shoe to change the physical motion. The use of insoles has been shown to increase the strength of the toe muscles and arch height ratio, as well as alter lower limb dynamics during walking. The hindfoot and lower leg in particular are said to be involved in a kinetic chain, and this assessment is important; however, kinetic chain assessment with the use of insoles in CAI cases is inadequate. The presenter used the MVCT method to evaluate the kinetic chain, and
classified the type of motion between the lower leg and hindfoot during gait using insoles in CAI cases. The results showed that the use of insoles changed the coordinated kinematic patterns, suggesting that the insoles may be effective for the CAI cases.
