Identifying differences in gait adaptability across various speeds using movement synergy analysis

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dc.contributor.author Ó'Reilly, David
dc.contributor.author Federolf, Peter
dc.date.accessioned 2021-02-23T10:09:41Z
dc.date.available 2021-02-23T10:09:41Z
dc.date.issued 2021-01-07
dc.identifier.citation Ó’Reilly, D. and Federolf, P. (2021) 'Identifying differences in gait adaptability across various speeds using movement synergy analysis', PLoS ONE, 16(1), e0244582 (15pp). doi: 10.1371/journal.pone.0244582 en
dc.identifier.volume 16 en
dc.identifier.issued 1 en
dc.identifier.startpage 1 en
dc.identifier.endpage 15 en
dc.identifier.uri http://hdl.handle.net/10468/11092
dc.identifier.doi 10.1371/journal.pone.0244582 en
dc.description.abstract Introduction: The aim of this study was to identify movement synergies during normal-walking that can differentiate healthy adults in terms of gait adaptability at various speeds. To this end, the association between movement synergies and lower-limb coordination variability or Deviation Phase (DP) was investigated. This study also investigated the moderating effect of movement synergies on the relationship between DP and the smoothness of arm-swing motion (NJI). Method: A principal component analysis of whole-body marker trajectories from normal-walking treadmill trials at 0.8m/s, 1.2m/s and 1.6m/s was undertaken. Both DP and NJI were derived from approx. 8 minutes of perturbed-walking treadmill trials. Principal movement components, PMk, were derived and the RMS of the 2nd-order differentiation of these PMk (PAkRMS) were included as independent variables representing the magnitude of neuromuscular control in each PMk. Each PAkRMS were input into maximal linear mixed-effects models against DP and (DP x NJI) respectively. A stepwise elimination of terms and comparison of models using Anova identified optimal models for both aims. Results: The principal movement related to the push-off mechanism of gait (PA4RMS) was identified as an optimal model and demonstrated a significant negative effect on DP however this effect may differ considerably across walking-speeds. An optimal model for describing the variance in (DP x NJI) included a fixed-effect of PA6RMS representing Right—Left side weight transfer was identified. Interpretation: The hypotheses that individuals who exhibited greater control on specific kinematic synergies would exhibit variations during perturbed walking was substantiated. Supporting evidence for the role of movement synergies during the double-support phase of gait in proactively correcting balance was presented as well as the potential for this approach in targeted rehabilitation. The potential influence of leg dominance on gait adaptability was also discussed. Future studies should investigate further the role of walking-speed and leg dominance on movement synergies and look to generalize these findings to patient populations. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Public Library of Science (PLOS) en
dc.relation.uri https://peerj.com/articles/918/
dc.relation.uri https://github.com/Davidoreilly12/O-Reilly-Federolf-2020
dc.rights © 2021, Ó’Reilly, Federolf. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.subject Gait adaptability en
dc.subject Lower-limb coordination en
dc.subject Deviation Phase (DP) en
dc.subject Lower-limb coordination variability en
dc.subject Arm-swing motion en
dc.title Identifying differences in gait adaptability across various speeds using movement synergy analysis en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother David Ó’Reilly, Nursing and Midwifery, University College Cork, Cork, Ireland. T: +353-21- 490-3000 en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle PLoS ONE en
dc.identifier.articleid e0244582 en
dc.identifier.eissn 1932-6203


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© 2021, Ó’Reilly, Federolf. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as © 2021, Ó’Reilly, Federolf. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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