O limiar de esforço percebido (LEP) corresponde à potência crítica e a um indicador de máximo estado estável de consumo de oxigěnio

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dc.contributor.authorNakamura, Fábio Yuzo [UNESP]
dc.contributor.authorBrunetto, Antônio Fernando
dc.contributor.authorMüller Hirai, Daniel
dc.contributor.authorTesini Rosequini, Bruno
dc.contributor.authorKokubun, Eduardo [UNESP]
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:19Z
dc.date.available2014-05-27T11:21:19Z
dc.date.issued2005-05-01
dc.description.abstractThe perceived exertion has been a target of several investigations, many times with association with objective physiological indicators in exercise. Recently, the identification of the perceived exertion threshold (PET) was proposed in the water running, which presented no difference in relation to the critical velocity. Theoretically, both parameters would be indicators of the maximum steady state of variables such as V̇O2 and blood lactate. The objective of this work was to verify the coincidence between PET, critical power (PCrit) and an indicator of maximum V̇O2 steady state (PCrit') in cycle ergometer. Eight male participants were submitted to progressive effort test in order to determine V̇O2peak (46.7 ± 8.5 ml/kg/min) and to four rectangular tests until exhaustion for the estimation of the critical power model parameters, PET and PCrit'. The hyperbolic relation between mechanical power and time spent for the V̇O2peak to be reached in each test was used for the PCrit' estimation, considered as the asymptote in the power axis, and the portion of the anaerobic work capacity (CTAnaer) depleted up to the establishment of the V̇O2peak (CTAnaer'). In order to identify PET, the straight lines angular coefficients of the perceived exertion in time (ordinate) and the powers used (abscissa) were adjusted to a linear function that provided a point in the power axis in which the perceived exertion would be kept indefinitely stable. The parameters PCrit and CTAnaer were estimated by means of the power-time non-linear equation. In order to compare the estimations of PET, PCrit and PCrit', the analysis of variance ANOVA for repeated measurements was employed, and the associations were established through the Pearson correlation. CTAnaer and CTAnaer' were compared through the t test. PET (180 W ± 61 W), PCrit (174 W ± 43 W) and PCrit' (176 W ± 48 W) were not significantly different and the correlations were of 0.92-0.98. CTAnaer' (14,080 ± 5,219 J) was lower than CTAnaer (22,093 ± 9,042 J). One concludes that the PET predicts the intensity of PCrit and PCrit' with accuracy.en
dc.description.affiliationGrupo de Estudo e Pesquisa em Metabolismo Nutrição e Exercício Centro de Educação Física e Desportos Universidade Estadual de Londrina, Rod. Celso Garcia Cid, km 380, 86051-990 Londrina, PR
dc.description.affiliationInstituto de Biociências Departamento de Educação Física Universidade Estadual Paulista, Rio Claro, SP
dc.description.affiliationLaboratório de Fisioterapia Pulmonar Universidade Estadual de Londrina, Rod. Celso Garcia Cid, km 380, 86051-990 Londrina, PR
dc.description.affiliationGrupo de Estudo das Adaptações Fisiológicas ao Treinamento Centro de Educação Fisica e Desportos Universidade Estadual de Londrina, Rod. Celso Garcia Cid, km 380, 86051-990 Londrina, PR
dc.description.affiliationUnespInstituto de Biociências Departamento de Educação Física Universidade Estadual Paulista, Rio Claro, SP
dc.format.extent197-202
dc.identifierhttp://dx.doi.org/10.1590/S1517-86922005000300009
dc.identifier.citationRevista Brasileira de Medicina do Esporte, v. 11, n. 3, p. 197-202, 2005.
dc.identifier.doi10.1590/S1517-86922005000300009
dc.identifier.file2-s2.0-23244459218.pdf
dc.identifier.issn1517-8692
dc.identifier.lattes3650843918755682
dc.identifier.orcid0000-0002-9404-3444
dc.identifier.scieloS1517-86922005000300009
dc.identifier.scopus2-s2.0-23244459218
dc.identifier.urihttp://hdl.handle.net/11449/68223
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Medicina do Esporte
dc.relation.ispartofjcr0.270
dc.relation.ispartofsjr0,185
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCritical power
dc.subjectMaximum VO2 steady state
dc.subjectPerceived exertion
dc.subjectaccuracy
dc.subjectadult
dc.subjectanaerobic capacity
dc.subjectanalysis of variance
dc.subjectbicycle ergometer
dc.subjectconstants and coefficients
dc.subjectcorrelation analysis
dc.subjectexhaustion
dc.subjecthuman
dc.subjecthuman experiment
dc.subjectmale
dc.subjectmuscle exercise
dc.subjectmuscle strength
dc.subjectmusculoskeletal system parameters
dc.subjectnormal human
dc.subjectoxygen consumption
dc.subjectrunning
dc.subjectself concept
dc.subjectsteady state
dc.subjecttime
dc.subjectwork capacity
dc.titleO limiar de esforço percebido (LEP) corresponde à potência crítica e a um indicador de máximo estado estável de consumo de oxigěniopt
dc.title.alternativeThe perceived exertion threshold (PET) corresponds to the critical power and to an indicator of maximal oxygen uptake steady stateen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbme/paboutj.htm#03
unesp.author.lattes3650843918755682
unesp.author.orcid0000-0002-9404-3444[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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