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Ankle dynamic in stroke patients: agonist vs. antagonist muscle relations

2012Journal article Open access
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dc.contributor.authorSilva, Augusta
dc.contributor.authorSousa, Andreia S. P.
dc.contributor.authorTavares, João Manuel
dc.contributor.authorTinoco, Ana
dc.contributor.authorSantos, Rubim
dc.contributor.authorSousa, Filipa
dc.date.accessioned2013-04-11T14:31:04Z
dc.date.available2013-04-11T14:31:04Z
dc.date.issued2012
dc.description.abstractAtypical ankle patterns of muscle activity during gait are commonly reported in patients with stroke. These findings can be due to changes between tibialis anterior (TA) and soleus (SOL) coactivation mechanisms. To compare the electromyographic activity (EMGa) of SOL and TA muscles and antagonist coactivation (C) level in the contralateral (CONTRA) and ipsilateral (IPSI) limbs to the side of the stroke lesion during stance phase of the gait cycle. Twelve subjects with a stroke episode participated in this study. The electromyographic signal of TA and SOL and ground reaction forces were acquired while subjects walked at their self-selected speed. Values of ground reaction forces were used to divide the stance phase of gait into initial contact, midstance and terminal stance. In each subphase the magnitude of TA and SOL was calculated as well as the level of the antagonist C. Although no statistical differences were found, mean values of SOL EMGa were lower in the IPSI in all stance phases in relation to the CONTRA limb, and the opposite was observed in the TA EMGa. Moreover, higher mean levels of antagonist C were only found during initial contact sub-phase in CONTRA limb and in the other sub-phases in the IPSI limb. Besides, statistical differences were observed only during midstance. Conclusion: In stroke subjects the antagonist C level during midstance of gait my reflected the dysfunction of the neuronal system over the IPSI limb.por
dc.identifier.citationSilva, A., Sousa, A. S. P., Tavares, J. M. R. S., Tinoco, A., Santos, R., & Sousa, F. (2012). Ankle dynamic in stroke patients: Agonist vs. antagonist muscle relations. Somatosensory & Motor Research, 29(4), 111–116. https://doi.org/10.3109/08990220.2012.715099
dc.identifier.doi10.3109/08990220.2012.715099pt_PT
dc.identifier.issn0899-0220
dc.identifier.issn1369-1651
dc.identifier.urihttp://hdl.handle.net/10400.22/1246
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInforma Healthcarepor
dc.relation.ispartofseriesSomatosensory and Motor Research; Vol. 29, Nº 4
dc.relation.publisherversionhttps://www.tandfonline.com/doi/abs/10.3109/08990220.2012.715099?journalCode=ismr20por
dc.subjectStance phase of gaitpor
dc.subjectElectromyography activitypor
dc.subjectSoleus and tibial musclespor
dc.subjectStrokepor
dc.titleAnkle dynamic in stroke patients: agonist vs. antagonist muscle relationspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage116por
oaire.citation.issueNº 4
oaire.citation.startPage111por
oaire.citation.titleSomatosensory and Motor Research
oaire.citation.volumeVol. 29por
person.familyNameFerreira Silva
person.familyNamePinheiro de Sousa
person.familyNameRubim Silva Santos
person.givenNameMaria Augusta
person.givenNameAndreia Sofia
person.givenNameManuel
person.identifier1087589
person.identifier1070119
person.identifier.ciencia-idCE18-7090-9C5E
person.identifier.ciencia-id2216-9200-7EF6
person.identifier.ciencia-idA018-2B24-C597
person.identifier.orcid0000-0001-5018-6905
person.identifier.orcid0000-0001-9528-1463
person.identifier.orcid0000-0002-7394-7604
person.identifier.ridC-7138-2019
person.identifier.scopus-author-id24482045400
person.identifier.scopus-author-id55950021600
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationedfc4f79-82b7-4669-8fa1-220cc20aa495
relation.isAuthorOfPublicationaeecfe02-e80d-49ab-9033-a1ade15658f2
relation.isAuthorOfPublication0a264044-a870-4fca-b976-f7ce003d23a8
relation.isAuthorOfPublication.latestForDiscovery0a264044-a870-4fca-b976-f7ce003d23a8

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