Mark E Cinque1, Blake M Bodendorfer2, Henry T Shu2, Nicholas A Arnold3, Aaron D Gray4, Benjamin J Summerhays4, Trent M Guess4, Seth L Sherman1. 1. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, USA. 2. Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA. 3. Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA. 4. Department of Orthopaedic Surgery, University of Missouri, Columbia, MO, USA.
Abstract
OBJECTIVE: To evaluate the effects of silicone ankle sleeves (SASs) and lace-up ankle braces (LABs) on neuromuscular control, net joint torques, and cutting agility in healthy, active individuals. DESIGN: Markerless motion-capture technology tracked subjects fitted with SASs, LABs, or no brace while they performed the movements: Y-excursion, left cutting, right cutting, single-leg drop vertical jump (SLDVJ), 45-degree bound, and single-leg squat (SLS). SETTING: University Laboratory. PARTICIPANTS: Ten healthy, active individuals (5 males and 5 females, mean ± SD 23.60 ± 1.43 years of age). MAIN OUTCOME MEASURES: Degrees of joint range of motion (ROM), Newton-meters of joint torque, time to perform a cutting maneuver. RESULTS: SASs and LABs resulted in significantly different knee and ankle ROM and hip internal rotation in the SLDVJ, SLS, Y-excursion, cutting maneuver, and 45-degree bound when compared to control (p < .05). Both ankle and knee torque were significantly reduced in the 45-degree bound and cutting movements with both types of PABs (p < .05). There were minimal differences between the SASs and LABs for all conditions. There were no statistically significant differences in cutting times for any of the 3 conditions. CONCLUSION: Both SAS and LAB positively impacted neuromuscular control, reduced net joint torque, and neither impaired cutting agility when compared to control.
OBJECTIVE: To evaluate the effects of silicone ankle sleeves (SASs) and lace-up ankle braces (LABs) on neuromuscular control, net joint torques, and cutting agility in healthy, active individuals. DESIGN: Markerless motion-capture technology tracked subjects fitted with SASs, LABs, or no brace while they performed the movements: Y-excursion, left cutting, right cutting, single-leg drop vertical jump (SLDVJ), 45-degree bound, and single-leg squat (SLS). SETTING: University Laboratory. PARTICIPANTS: Ten healthy, active individuals (5 males and 5 females, mean ± SD 23.60 ± 1.43 years of age). MAIN OUTCOME MEASURES: Degrees of joint range of motion (ROM), Newton-meters of joint torque, time to perform a cutting maneuver. RESULTS: SASs and LABs resulted in significantly different knee and ankle ROM and hip internal rotation in the SLDVJ, SLS, Y-excursion, cutting maneuver, and 45-degree bound when compared to control (p < .05). Both ankle and knee torque were significantly reduced in the 45-degree bound and cutting movements with both types of PABs (p < .05). There were minimal differences between the SASs and LABs for all conditions. There were no statistically significant differences in cutting times for any of the 3 conditions. CONCLUSION: Both SAS and LAB positively impacted neuromuscular control, reduced net joint torque, and neither impaired cutting agility when compared to control.
Authors: Timothy E Hewett; Gregory D Myer; Kevin R Ford; Robert S Heidt; Angelo J Colosimo; Scott G McLean; Antonie J van den Bogert; Mark V Paterno; Paul Succop Journal: Am J Sports Med Date: 2005-02-08 Impact factor: 6.202