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Analysis of ground reaction force and electromyographic activity of the gastrocnemius muscle during double support

2012Journal article Open access
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dc.contributor.authorSousa, Andreia S. P.
dc.contributor.authorSantos, Rubim
dc.contributor.authorOliveira, Francisco
dc.contributor.authorCarvalho, Paulo
dc.contributor.authorTavares, João Manuel
dc.date.accessioned2013-04-11T11:51:31Z
dc.date.available2013-04-11T11:51:31Z
dc.date.issued2012
dc.descriptionO documento em anexo encontra-se na versão post-print (versão corrigida pelo editor).
dc.description.abstractPurpose: Mechanisms associated with energy expenditure during gait have been extensively researched and studied. According to the double-inverted pendulum model energy expenditure is higher during double support, as lower limbs need to work to redirect the centre of mass velocity. This study looks into how the ground reaction force (GRF) of one limb affects the muscle activity required by the medial gastrocnemius (MG) of the contralateral limb during step-to-step transition. Methods: Thirty-five subjects were monitored as to the MG electromyographic activity (EMGa) of one limb and the GRF of the contralateral limb during double support. Results: After determination of the Pearson correlation coefficient (r), a moderate correlation was observed between the MG EMGa of the dominant leg and the vertical (Fz) and anteroposterior (Fy) components of GRF of the non-dominant leg (r=0.797, p<0.0001; r=-0.807, p<0.0001) and a weak and moderate correlation was observed between the MG EMGa of the non-dominant leg and the Fz and Fy of the dominant leg, respectively (r=0.442, p=0.018; r=-0.684 p<0.0001). Conclusions: The results obtained suggest that during double support, GRF is associated with the EMGa of the contralateral MG and that there is an increased dependence between the GRF of the non-dominant leg and the EMGa of the dominant MG.por
dc.identifier.doi10.1177/0954411912439671pt_PT
dc.identifier.issn0954-4119
dc.identifier.urihttp://hdl.handle.net/10400.22/1236
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInstitution of Mechanical Engineerspor
dc.relation.ispartofseriesProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine; Vol. 226, Nº 5
dc.relation.publisherversionhttp://pih.sagepub.com/content/226/5/397.abstract
dc.subjectDouble-inverted pendulum modelpor
dc.subjectDouble support phasepor
dc.subjectGround reaction forcepor
dc.subjectAnkle plantar flexor activitypor
dc.subjectElectromyographypor
dc.titleAnalysis of ground reaction force and electromyographic activity of the gastrocnemius muscle during double supportpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage405por
oaire.citation.issueNº 5
oaire.citation.startPage397por
oaire.citation.titleProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
oaire.citation.volumeVol. 226por
person.familyNamePinheiro de Sousa
person.familyNameRubim Silva Santos
person.familyNameCarvalho
person.givenNameAndreia Sofia
person.givenNameManuel
person.givenNamePaulo
person.identifier1070119
person.identifier1542485
person.identifier.ciencia-id2216-9200-7EF6
person.identifier.ciencia-idA018-2B24-C597
person.identifier.ciencia-id4318-59C3-5AA4
person.identifier.orcid0000-0001-9528-1463
person.identifier.orcid0000-0002-7394-7604
person.identifier.orcid0000-0002-0133-3929
person.identifier.ridC-7138-2019
person.identifier.scopus-author-id55950021600
person.identifier.scopus-author-id57213681595
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationaeecfe02-e80d-49ab-9033-a1ade15658f2
relation.isAuthorOfPublication0a264044-a870-4fca-b976-f7ce003d23a8
relation.isAuthorOfPublication80f90c1d-52b3-4b9f-90c2-631d07f5ffcf
relation.isAuthorOfPublication.latestForDiscovery0a264044-a870-4fca-b976-f7ce003d23a8

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