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Neuromuscular Fatigue during 200 M Breaststroke

2014Journal article Open access
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dc.contributor.authorConceição, Ana
dc.contributor.authorSilva, António
dc.contributor.authorBarbosa, Tiago
dc.contributor.authorKarsai, Istvan
dc.contributor.authorLouro, Hugo
dc.date.accessioned2021-08-09T15:09:43Z
dc.date.available2021-08-09T15:09:43Z
dc.date.issued2014
dc.description.abstractThe aims of this study were: i) to analyze activation patterns of four upper limb muscles (duration of the active and non-active phase) in each lap of 200m breaststroke, ii) quantify neuromuscular fatigue, with kinematics and physiologic assessment. Surface electromyogram was collected for the biceps brachii, deltoid anterior, pectoralis major and triceps brachii of nine male swimmers performing a maximal 200m breaststroke trial. Swimming speed, SL, SR, SI decreased from the 1st to the 3rd lap. SR increased on the 4th lap (35.91 ± 2.99 stroke·min-1). Peak blood lactate was 13.02 ± 1.72 mmol·l-1 three minutes after the maximal trial. The EMG average rectified value (ARV) increased at the end of the race for all selected muscles, but the deltoid anterior and pectoralis major in the 1st lap and for biceps brachii, deltoid anterior and triceps brachii in the 4th lap. The mean frequency of the power spectral density (MNF) decreased at the 4th lap for all muscles. These findings suggest the occurrence of fatigue at the beginning of the 2nd lap in the 200m breaststroke trial, characterized by changes in kinematic parameters and selective changes in upper limb muscle action. There was a trend towards a non-linear fatigue state.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationConceição, A., Silva, A.J., Barbosa, T., Karsai, I. & Louro, H. (2014) Neuromuscular Fatigue During 200 M Breaststroke. Journal of Sports Science and Medicine (13), 200 - 210.pt_PT
dc.identifier.issn1303 - 2968
dc.identifier.urihttp://hdl.handle.net/10400.15/3572
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMedical Faculty of Uludag Universitypt_PT
dc.relation.publisherversionhttps://www.jssm.org/jssm-13-200.xml%3EFulltextpt_PT
dc.subjectswimmingpt_PT
dc.subjectkinematicspt_PT
dc.subjectEMGpt_PT
dc.subjectmean frequencypt_PT
dc.titleNeuromuscular Fatigue during 200 M Breaststrokept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBursa, Turkeypt_PT
oaire.citation.endPage210pt_PT
oaire.citation.issue13pt_PT
oaire.citation.startPage200pt_PT
oaire.citation.titleJournal of Sports Science and Medicinept_PT
person.familyNameConceição
person.familyNameLouro
person.givenNameAna
person.givenNameHugo
person.identifier1741759
person.identifier1741645
person.identifier.ciencia-id6F1E-2607-3DA6
person.identifier.ciencia-id8019-E11F-9609
person.identifier.orcid0000-0002-8109-4875
person.identifier.orcid0000-0001-5635-2476
person.identifier.scopus-author-id26425142800
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3779cb02-16b2-46b7-a2ca-2206f8709781
relation.isAuthorOfPublicationf29a2faa-09b7-43c3-b023-0684d0a5d8d3
relation.isAuthorOfPublication.latestForDiscovery3779cb02-16b2-46b7-a2ca-2206f8709781

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