EFFECTS OF DIFFERENT HEIGHTS OF BOX DROP VERTICAL JUMP ON THE CHRONIC ANKLE INSTABILITY INDIVIDUALS

Abstract

The purpose of this study was to investigate the effects of different height of box drop vertical jump DVJ) among the healthy control, coper, and CAI groups. Participants were asked to perform a box drop vertical jump and followed with a single-leg landing on the force plate. The DVJ height was 10cm, 30cm, and 50cm. Results from the current study indicated two major findings: Three groups showed difference in frontal plan and sagittal plane when doing 50cm DVJ task, In sequence for CAI ,coper and healthy group. Our findings indicated that different landing strategy of ankle joints exist among 3 groups.