Lower Limb Interjoint Postural Coordination One Year after First-Time Lateral Ankle Sprain

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Title: Lower Limb Interjoint Postural Coordination One Year after First-Time Lateral Ankle Sprain
Authors: Doherty, CailbheBleakley, Chris J.Hertel, JayCaulfield, BrianRyan, JohnSweeney, Kevin T.Patterson, MatthewDelahunt, Eamonn
Permanent link: http://hdl.handle.net/10197/10903
Date: 1-Nov-2015
Online since: 2019-07-12T09:27:56Z
Abstract: Introduction: Longitudinal analyses of participants with a history of lateral ankle sprain are lacking. This investigation combined measures of lower limb interjoint coordination and stabilometry to evaluate static unipedal stance with the eyes open (condition 1) and closed (condition 2) in a group of participants with chronic ankle instability (CAI) compared to lateral ankle sprain ‘‘copers’’ (both recruited 12 months after sustaining an acute first-time lateral ankle sprain) and a group of noninjured controls. Methods: Twenty-eight participants with CAI, 42 lateral ankle sprain ‘‘copers,’’ and 20 noninjured controls completed three 20-s singlelimb stance trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb threedimensional kinematic data for similarity to establish patterns of interjoint coordination. The fractal dimension of the stance limb center of pressure path was also calculated. Results: Between-group analyses revealed that participants with CAI displayed notable increases in ankle–hip linked coordination compared with both lateral ankle sprain ‘‘copers’’ (j0.52 (1.05) vs 0.28 (0.9), P = 0.007) and controls (j0.52 (1.05) vs 0.63 (0.64), P = 0.006) in condition 1 and compared with controls only (0.62 (1.92) vs 0.1 (1.0) P = 0.002) in condition 2. Participants with CAI also exhibited a decrease in the fractal dimension of the center-of-pressure path during condition 2 compared with both controls and lateral ankle sprain ‘‘copers.’’ Conclusions: Participants with CAI present with a hip-dominant strategy of eyes-open and eyes-closed static unipedal stance. This coincided with reduced complexity of the stance limb center of pressure path in the eyes-closed condition.
Funding Details: Health Research Board
Type of material: Journal Article
Publisher: Wolters Kluwer
Journal: Medicine and Science in Sports and Injury The Official Journal of the American College of Sports Medicine
Volume: 47
Issue: 11
Start page: 2398
End page: 2405
Copyright (published version): 2015 American College of Sports Medicine
Keywords: Ankle jointBiomechanical phenomenaKinematicsKineticsPostural balanceJoint instability
DOI: 10.1249/MSS.0000000000000673
Language: en
Status of Item: Peer reviewed
Appears in Collections:Public Health, Physiotherapy and Sports Science Research Collection
Insight Research Collection
Institute for Sport & Health Research Collection

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