Postactivation Potentiation Biases Maximal Isometric Strength Assessment

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dc.contributor.authorRabello Lima, Leonardo Coelho [UNESP]
dc.contributor.authorDias Oliveira, Felipe Bruno [UNESP]
dc.contributor.authorOliveira, Thiago Pires [UNESP]
dc.contributor.authorAssumpcao, Claudio de Oliveira [UNESP]
dc.contributor.authorGreco, Camila Coelho [UNESP]
dc.contributor.authorCardozo, Adalgiso Croscato [UNESP]
dc.contributor.authorDenadai, Benedito Sergio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-03-18T15:55:34Z
dc.date.available2015-03-18T15:55:34Z
dc.date.issued2014-01-01
dc.description.abstractPostactivation potentiation (PAP) is known to enhance force production. Maximal isometric strength assessment protocols usually consist of two or more maximal voluntary isometric contractions (MVCs). The objective of this study was to determine if PAP would influence isometric strength assessment. Healthy male volunteers (n = 23) performed two five-second MVCs separated by a 180-seconds interval. Changes in isometric peak torque (IPT), time to achieve it (tPTI), contractile impulse (CI), root mean square of the electromyographic signal during PTI (RMS), and rate of torque development (RTD), in different intervals, were measured. Significant increases in IPT (240.6 +/- 55.7 N.m versus 248.9 +/- 55.1 N.m), RTD (746 +/- 152 N.m.s(-1) versus 727 +/- 158 N.m.s(-1)), and RMS (59.1 +/- 12.2% RMSMAX versus 54.8 +/- 9.4% RMSMAX) were found on the second MVC. tPTI decreased significantly on the second MVC (2373 +/- 1200 ms versus 2784 +/- 1226 ms). We conclude that a first MVC leads to PAP that elicits significant enhancements in strength-related variables of a second MVC performed 180 seconds later. If disconsidered, this phenomenon might bias maximal isometric strength assessment, overestimating some of these variables.en
dc.description.affiliationSao Paulo State Univ, Dept Phys Educ, Human Performance Lab, Rio Claro, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Dept Phys Educ, Biomech Lab, Rio Claro, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Phys Educ, Human Performance Lab, Rio Claro, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Phys Educ, Biomech Lab, Rio Claro, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent7
dc.identifierhttp://dx.doi.org/10.1155/2014/126961
dc.identifier.citationBiomed Research International. New York: Hindawi Publishing Corporation, 7 p., 2014.
dc.identifier.doi10.1155/2014/126961
dc.identifier.fileWOS000339762100001.pdf
dc.identifier.fileWOS000339762100001.epub
dc.identifier.issn2314-6133
dc.identifier.lattes7416129894680689
dc.identifier.lattes1907479250833033
dc.identifier.lattes9812382668330744
dc.identifier.orcid0000-0001-9462-0240
dc.identifier.urihttp://hdl.handle.net/11449/117225
dc.identifier.wosWOS:000339762100001
dc.language.isoeng
dc.publisherHindawi Publishing Corporation
dc.relation.ispartofBiomed Research International
dc.relation.ispartofjcr2.583
dc.relation.ispartofsjr0,935
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titlePostactivation Potentiation Biases Maximal Isometric Strength Assessmenten
dc.typeArtigo
dcterms.rightsHolderHindawi Publishing Corporation
unesp.author.lattes7416129894680689[5]
unesp.author.lattes1907479250833033[7]
unesp.author.lattes9812382668330744[6]
unesp.author.orcid0000-0001-9462-0240[6]
unesp.author.orcid0000-0003-0775-1889[7]
unesp.author.orcid0000-0002-7611-9759[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Educação Física - IBRC