2020 Volume 6 Issue 1 Pages 33-41
The purpose of this study was to investigate the effects of fatigue on side hop test results and ankle biomechanics for chronic ankle instability (CAI). We assessed 10 collegiate athletes with CAI. Side hop test was performed before and after a fatigue-inducing exercise. We measured 3-D ankle kinematics, kinetics, and surface electromyography during the side hop test. The side hop time was significantly greater after the fatigue exercise (8.55±0.74 seconds) than before (8.06±0.69 seconds). Fatigue decreased plantar flexion moment and tibialis anterior muscle activity as well as increased inversion moment and internal rotation angle.
