Hop-stabilization training and landing biomechanics in athletes with chronic ankle instability: A randomized controlled trial

Abstract

Context: Hopping exercises are recommended as a functional training tool to prevent lower limb injury, but their effects on lower extremity biomechanics in those with chronic ankle instability (CAI) are unclear. Objective: To determine if jump-landing biomechanics change after a hop-stabilization intervention. Design: Randomized controlled clinical trial. Setting: Research laboratory. Patients or Other Participants: Twenty-eight male collegiate basketball players with CAI were divided into 2 groups: hop-training group (age = 22.78 ± 3.09 years, mass = 82.59 ± 9.51 kg, height = 187.96 ± 7.93 cm) and control group (age = 22.57 ± 2.76 years, mass = 78.35 ± 7.02 kg, height = 185.69 ± 7.28 cm). Intervention(s): A 6-week supervised hop-stabilization training program that consisted of 18 training sessions. Main Outcome Measure(s): Lower extremity kinetics and kinematics during a jump-landing task and self-reported function were assessed before and after the 6-week training program. Results: The hop-stabilization program resulted in improved self-reported function (P