EMG amplitude and frequency parameters of muscular activity: Effect of resistance training based on electromyographic fatigue threshold

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dc.contributor.authorCastelo Oliveira, Anderson de Souza [UNESP]
dc.contributor.authorGoncalves, Mauro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:49:19Z
dc.date.accessioned2014-05-20T13:58:45Z
dc.date.available2013-09-30T18:49:19Z
dc.date.available2014-05-20T13:58:45Z
dc.date.issued2009-04-01
dc.description.abstractThe present study aimed to evaluate the effect of a resistance training program based on the electromyographic fatigue threshold (EMG(FT), defined is the highest exercise intensity performed without EMG alterations), on the EMG amplitude (root mean square, RMS) and frequency (median frequency, MF) values for biceps brachii (BB), brachioradialis (BR), triceps brachii (TB) and multifidus (MT). Twenty healthy male subjects, (training group [TG], n = 10; control group [CG], n = 10), firstly performed isometric contractions, and after this, dynamic biceps curl at four different loads to determine the EMG(FT). The TG training program used the BB EMG(FT) value (8 weeks, 2 sessions/week, 3 exhaustive bouts/session, 2 min rest between bouts). No significant differences were found for the isometric force after the training. The linear regression slopes of the RMS with time during the biceps curl presented significant decrease after training for the BB, BR and TB muscles. For the MT muscle, the slope and MF intercept values changed with training. The training program based on the EMG(FT) influenced EMG the amplitude more than EMG frequency, possibly related to the recruitment patterns of the muscles, although the trunk extensor muscles presented changes in the frequency parameter, showing adaptation to the training program. (c) 2007 Elsevier Ltd. All rights reserved.en
dc.description.affiliationSão Paulo State Univ, UNESP, Biosci Inst, Dept Phys Educ,Biomech Lab, BR-13506900 São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Biosci Inst, Dept Phys Educ,Biomech Lab, BR-13506900 São Paulo, Brazil
dc.description.sponsorshipBiomechanics Laboratory
dc.description.sponsorshipUNESP
dc.description.sponsorshipRio Claro/SP
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent295-303
dc.identifierhttp://dx.doi.org/10.1016/j.jelekin.2007.07.008
dc.identifier.citationJournal of Electromyography and Kinesiology. Oxford: Elsevier B.V., v. 19, n. 2, p. 295-303, 2009.
dc.identifier.doi10.1016/j.jelekin.2007.07.008
dc.identifier.issn1050-6411
dc.identifier.urihttp://hdl.handle.net/11449/20881
dc.identifier.wosWOS:000264267600013
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Electromyography and Kinesiology
dc.relation.ispartofjcr1.568
dc.relation.ispartofsjr0,778
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectRMSen
dc.subjectMedian frequencyen
dc.subjectEMG(FT)en
dc.subjectResistance exerciseen
dc.subjectTrainingen
dc.titleEMG amplitude and frequency parameters of muscular activity: Effect of resistance training based on electromyographic fatigue thresholden
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0003-2186-8100[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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