Mohammad Karimizadeh Ardakani1, Erik A Wikstrom2, Hooman Minoonejad1, Reza Rajabi1, Ali Sharifnezhad3. 1. Department of Health and Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Iran. 2. Department of Exercise and Sport Science, University of North Carolina at Chapel Hill. 3. Sport Science Research Institute, Tehran, Iran.
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 < .05), larger sagittal-plane hip- and knee-flexion angles, and greater ankle dorsiflexion (P < .05) relative to the control group. Reduced frontal-plane joint angles at the hip, knee, and ankle as well as decreased ground reaction forces and a longer time to peak ground reaction forces were observed in the hopping group compared with the control group after the intervention (P < .05). CONCLUSIONS: The 6-week hop-stabilization training program altered jump-landing biomechanics in male collegiate basketball players with CAI. These results may provide a potential mechanistic explanation for improvements in patient-reported outcomes and reductions in injury risk after ankle-sprain rehabilitation programs that incorporate hop-stabilization exercises.
RCT Entities:
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 < .05), larger sagittal-plane hip- and knee-flexion angles, and greater ankle dorsiflexion (P < .05) relative to the control group. Reduced frontal-plane joint angles at the hip, knee, and ankle as well as decreased ground reaction forces and a longer time to peak ground reaction forces were observed in the hopping group compared with the control group after the intervention (P < .05). CONCLUSIONS: The 6-week hop-stabilization training program altered jump-landing biomechanics in male collegiate basketball players with CAI. These results may provide a potential mechanistic explanation for improvements in patient-reported outcomes and reductions in injury risk after ankle-sprain rehabilitation programs that incorporate hop-stabilization exercises.
Authors: Tobias Golditz; Goetz H Welsch; Milena Pachowsky; Friedrich F Hennig; Klaus Pfeifer; Simon Steib Journal: J Orthop Res Date: 2015-09-04 Impact factor: 3.494
Authors: Patrick O McKeon; Gabriele Paolini; Christopher D Ingersoll; D Casey Kerrigan; Ethan N Saliba; Bradford C Bennett; Jay Hertel Journal: Clin Rehabil Date: 2009-05-15 Impact factor: 3.477
Authors: Cailbhe Doherty; Eamonn Delahunt; Brian Caulfield; Jay Hertel; John Ryan; Chris Bleakley Journal: Sports Med Date: 2014-01 Impact factor: 11.136
Authors: Kyung-Min Kim; María D Estudillo-Martínez; Yolanda Castellote-Caballero; Alejandro Estepa-Gallego; David Cruz-Díaz Journal: Int J Environ Res Public Health Date: 2021-05-18 Impact factor: 3.390