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Gait asymmetry: composite scores for mechanical analyses of sprint running

Gait asymmetry: composite scores for mechanical analyses of sprint running
Gait asymmetry: composite scores for mechanical analyses of sprint running
Gait asymmetry analyses are beneficial from clinical, coaching and technology perspectives. Quantifying overall athlete asymmetry would be useful in allowing comparisons between participants, or between asymmetry and other factors, such as sprint running performance. The aim of this study was to develop composite kinematic and kinetic asymmetry scores to quantify athlete asymmetry during maximal speed sprint running. Eight male sprint trained athletes (age 22±5 years, mass 74.0±8.7kg and stature 1.79±0.07m) participated in this study. Synchronised sagittal plane kinematic and kinetic data were collected via a CODA motion analysis system, synchronised to two Kistler force plates. Bilateral, lower limb data were collected during the maximal velocity phase of sprint running (velocity=9.05±0.37ms?1). Kinematic and kinetic composite asymmetry scores were developed using the previously established symmetry angle for discrete variables associated with successful sprint performance and comparisons of continuous joint power data. Unlike previous studies quantifying gait asymmetry, the scores incorporated intra-limb variability by excluding variables from the composite scores that did not display significantly larger (p<0.05) asymmetry than intra-limb variability. The variables that contributed to the composite scores and the magnitude of asymmetry observed for each measure varied on an individual participant basis. The new composite scores indicated the inter-participant differences that exist in asymmetry during sprint running and may serve to allow comparisons between overall athlete asymmetry with other important factors such as performance.

symmetry angle, sprint running, kinematic, kinetic, variability
0021-9290
1108-1111
Exell, Timothy
eab3e272-643a-4a55-82a6-2949d0dc0e01
Gittoes, Marianne
98da34cd-11b2-46a4-b988-b68db098a0b1
Irwin, Gareth
aa3b1844-e6b2-46e1-94c2-4b676e389286
Kerwin, David
9f7a4c91-05a0-4081-8ee0-58789c6011ca
Exell, Timothy
eab3e272-643a-4a55-82a6-2949d0dc0e01
Gittoes, Marianne
98da34cd-11b2-46a4-b988-b68db098a0b1
Irwin, Gareth
aa3b1844-e6b2-46e1-94c2-4b676e389286
Kerwin, David
9f7a4c91-05a0-4081-8ee0-58789c6011ca

Exell, Timothy, Gittoes, Marianne, Irwin, Gareth and Kerwin, David (2012) Gait asymmetry: composite scores for mechanical analyses of sprint running. Journal of Biomechanics, 45 (6), 1108-1111. (doi:10.1016/j.jbiomech.2012.01.007). (PMID:22296935)

Record type: Article

Abstract

Gait asymmetry analyses are beneficial from clinical, coaching and technology perspectives. Quantifying overall athlete asymmetry would be useful in allowing comparisons between participants, or between asymmetry and other factors, such as sprint running performance. The aim of this study was to develop composite kinematic and kinetic asymmetry scores to quantify athlete asymmetry during maximal speed sprint running. Eight male sprint trained athletes (age 22±5 years, mass 74.0±8.7kg and stature 1.79±0.07m) participated in this study. Synchronised sagittal plane kinematic and kinetic data were collected via a CODA motion analysis system, synchronised to two Kistler force plates. Bilateral, lower limb data were collected during the maximal velocity phase of sprint running (velocity=9.05±0.37ms?1). Kinematic and kinetic composite asymmetry scores were developed using the previously established symmetry angle for discrete variables associated with successful sprint performance and comparisons of continuous joint power data. Unlike previous studies quantifying gait asymmetry, the scores incorporated intra-limb variability by excluding variables from the composite scores that did not display significantly larger (p<0.05) asymmetry than intra-limb variability. The variables that contributed to the composite scores and the magnitude of asymmetry observed for each measure varied on an individual participant basis. The new composite scores indicated the inter-participant differences that exist in asymmetry during sprint running and may serve to allow comparisons between overall athlete asymmetry with other important factors such as performance.

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More information

e-pub ahead of print date: 31 January 2012
Published date: April 2012
Keywords: symmetry angle, sprint running, kinematic, kinetic, variability
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 350061
URI: http://eprints.soton.ac.uk/id/eprint/350061
ISSN: 0021-9290
PURE UUID: 6ed5d11e-5e12-4012-85ff-de36f0002cdd

Catalogue record

Date deposited: 18 Mar 2013 14:03
Last modified: 14 Mar 2024 13:20

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Contributors

Author: Timothy Exell
Author: Marianne Gittoes
Author: Gareth Irwin
Author: David Kerwin

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