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Single-leg drop landing motor control strategies following acute ankle sprain injury
Alternative Title
Landing strategies following acute ankle sprain injury
Date Issued
2015-08
Date Available
2017-02-02T16:05:04Z
Abstract
No research currently exists investigating the effect of acute injury on single-limb landing strategies. The aim of the current study was to analyse the coordination strategies of participants in the acute phase of lateral ankle sprain (LAS) injury. Thirty-seven participants with acute, first-time, LAS and nineteen uninjured participants completed a single-leg drop landing task (DL) on both limbs. 3-dimensional kinematic (angular displacement) and sagittal plane kinetic (moment of force) data were acquired for the joints of the lower extremity, from 200ms pre-initial contact (IC) to 200ms post IC. The peak magnitude of the vertical component of the ground reaction force (GRF) was also computed. Injured participants displayed a bilateral increase in hip flexion, with altered transverse plane kinematic profiles at the knee and ankle for both limbs (p < 0.05). This coincided with a reduction in the net supporting flexor moment of the lower extremity (p < 0.05) and magnitude of the peak vertical GRF for the injured limb (21.82 ± 2.44 N/kg vs 24.09 ± 2.77 N/kg; p = 0.013) in injured participants compared to control participants. These results demonstrate that compensatory movement strategies are utilized by participants with acute LAS to successfully reduce the impact forces of landing.
Sponsorship
Science Foundation Ireland
Type of Material
Journal Article
Publisher
Wiley
Journal
Scandinavian Journal of Medicine and Science in Sports
Volume
25
Issue
4
Start Page
525
End Page
533
Copyright (Published Version)
2014 Wiley
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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Single-leg drop landing motor control strategies following acute ankle sprain injury.pdf
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423.96 KB
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35
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