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Reliability of two methods for identifying the postural phase of gait initiation in healthy and post-stroke subjects

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dc.contributor.authorSousa, Andreia S. P.
dc.contributor.authorSilva, Augusta
dc.contributor.authorSantos, Rubim
dc.date.accessioned2016-01-13T15:44:00Z
dc.date.available2016-01-13T15:44:00Z
dc.date.issued2015-10
dc.description.abstractThis study aims to compare two methods of assessing the postural phase of gait initiation as to intrasession reliability, in healthy and post-stroke subjects. As a secondary aim, this study aims to analyse anticipatory postural adjustments during gait initiation based on the centre of pressure (CoP) displacements in post-stroke participants. The CoP signal was acquired during gait initiation in fifteen post-stroke subjects and twenty-three healthy controls. Postural phase was identified through a baseline-based method and a maximal displacement based method. In both healthy and post-stroke participants higher intra-class correlation coefficient and lower coefficient of variation values were obtained with the baseline-based method when compared to the maximal displacement based method. Post-stroke participants presented decreased CoP displacement backward and toward the first swing limb compared to controls when the baseline-based method was used. With the maximal displacement based method, there were differences between groups only regarding backward CoP displacement. Postural phase duration in medial-lateral direction was also increased in post-stroke participants when using the maximal displacement based method. The findings obtained indicate that the baseline-based method is more reliable detecting the onset of gait initiation in both groups, while the maximal displacement based method presents greater sensitivity for post-stroke participants.pt_PT
dc.identifier.citationSousa, A.S., A. Silva, and R. Santos, Reliability of Two Methods for Identifying the Postural Phase of Gait Initiation in Healthy and Poststroke Subjects. J Appl Biomech 2015; 31(5): 349-56.pt_PT
dc.identifier.doi10.1123/jab.2014-0222pt_PT
dc.identifier.issn1065-8483 (Print), 1543-2688 (Online)
dc.identifier.urihttp://hdl.handle.net/10400.22/7390
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherHuman Kinetics Journalspt_PT
dc.relation.publisherversionhttp://journals.humankinetics.com/jab-back-issues/jab-volume-31-issue-5-october/reliability-of-two-methods-for-identifying-the-postural-phase-of-gait-initiation-in-healthy-and-poststroke-subjectspt_PT
dc.subjectGait initiationpt_PT
dc.subjectPostural control phasept_PT
dc.subjectStrokept_PT
dc.subjectReliabilitypt_PT
dc.subjectCentre of pressurept_PT
dc.titleReliability of two methods for identifying the postural phase of gait initiation in healthy and post-stroke subjectspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage356pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage349pt_PT
oaire.citation.titleJournal of Applied Biomechanicspt_PT
oaire.citation.volume31pt_PT
person.familyNamePinheiro de Sousa
person.familyNameFerreira Silva
person.familyNameRubim Silva Santos
person.givenNameAndreia Sofia
person.givenNameMaria Augusta
person.givenNameManuel
person.identifier1070119
person.identifier1087589
person.identifier.ciencia-id2216-9200-7EF6
person.identifier.ciencia-idCE18-7090-9C5E
person.identifier.ciencia-idA018-2B24-C597
person.identifier.orcid0000-0001-9528-1463
person.identifier.orcid0000-0001-5018-6905
person.identifier.orcid0000-0002-7394-7604
person.identifier.ridC-7138-2019
person.identifier.scopus-author-id55950021600
person.identifier.scopus-author-id24482045400
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationaeecfe02-e80d-49ab-9033-a1ade15658f2
relation.isAuthorOfPublicationedfc4f79-82b7-4669-8fa1-220cc20aa495
relation.isAuthorOfPublication0a264044-a870-4fca-b976-f7ce003d23a8
relation.isAuthorOfPublication.latestForDiscoveryedfc4f79-82b7-4669-8fa1-220cc20aa495

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