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Coordination and symmetry patterns during the drop vertical jump, 6-months after first-time lateral ankle sprain
Date Issued
2015-10
Date Available
2017-04-28T09:51:05Z
Abstract
To evaluate the adaptive movement and motor control patterns of a group with a 6-month history of first-time lateral ankle sprain (LAS) injury during a drop vertical jump (DVJ) task. Fifty-one participants with a 6-month history of first-time acute LAS injury and twenty controls performed a DVJ task. 3D kinematic and sagittal plane kinetic profiles were plotted for the lower extremity joints of both limbs for the drop jump (phase 1) and drop landing (phase 2) phases of the DVJ. Inter-limb symmetry and the rate of impact modulation (RIM) relative to bodyweight (BW) during both phases of the DVJ were also determined. LAS participants displayed bilateral increases in knee flexion and an increase in ankle inversion during phases 1 and 2, respectively. They also displayed reduced ankle plantar flexion on their injured limb during both phases of the DVJ (p < 0.05); increased inter-limb asymmetry of RIM was noted for both phases of the DVJ, while the moment-of-force profile exhibited bilaterally greater hip extensor dominance during phase 1. Participants with a 6-month history of first-time LAS display some movement patterns consistent with those observed in chronic ankle instability populations during similar tasks.
Sponsorship
Health Research Board
Type of Material
Journal Article
Publisher
Wiley
Journal
Journal of Orthopaedic Research
Volume
33
Issue
10
Start Page
1537
End Page
1544
Copyright (Published Version)
2015 Orthopaedic Research Society
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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