PRODUCTION of FREE RADICALS and CATALASE ACTIVITY DURING ACUTE EXERCISE TRAINING IN YOUNG MEN

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dc.contributor.authorde Castro, M. A. C.
dc.contributor.authorCavalcanti Neto, F. F.
dc.contributor.authorLima, L. M. C.
dc.contributor.authorda Silva, F. M.
dc.contributor.authorde Oliveira, R. J.
dc.contributor.authorZanesco, A. [UNESP]
dc.contributor.institutionUniv Catolica Brasilia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:48:55Z
dc.date.accessioned2014-05-20T13:58:33Z
dc.date.available2013-09-30T18:48:55Z
dc.date.available2014-05-20T13:58:33Z
dc.date.issued2009-01-01
dc.description.abstractReactive oxygen species (ROS) are constantly produced by cells that promote cellular oxidative damage and are neutralized by an antioxidant system including superoxide dismutase, glutathione, peroxidase and catalase. Male volunteers were exercised for 20 minutes, three days (60, 70 and 80% of maximum heart rate). Catalase activity and plasma malondialdehyde concentration were measured. The mean age of the volunteers was 25 +/- 7 years, with body mass index 2 of 24.03 +/- 4.32 kg/m(2). Acute exercise training produced an increase of malondialdehyde concentration that was exercise intensity-dependent in young volunteers. However, catalase activity shows a great variability at baseline and the percentual of reduction was exercise intensity-independent in this particular population. Therefore, our study shows that acute cycling exercise promotes an increase of oxidative stress that was exercise intensity-dependent in young volunteers. Furthermore, the antioxidant system measured by catalase activity was effective to counterbalance the ROS production showing a saturation behavior at an intensity of 70% of maximum heart rate.en
dc.description.affiliationUniv Catolica Brasilia, Dept Phys Educ, BR-72022900 Taguatinga, DF, Brazil
dc.description.affiliationUniv São Paulo State, UNESP, Dept Phys Educ, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv São Paulo State, UNESP, Dept Phys Educ, Rio Claro, SP, Brazil
dc.format.extent113-118
dc.identifierhttp://biolsport.com/abstracted.php?level=5&icid=890157
dc.identifier.citationBiology of Sport. Warsaw 45: Inst Sport, v. 26, n. 2, p. 113-118, 2009.
dc.identifier.issn0860-021X
dc.identifier.lattes4472007237545596
dc.identifier.urihttp://hdl.handle.net/11449/20802
dc.identifier.wosWOS:000267628100002
dc.language.isoeng
dc.publisherInst Sport
dc.relation.ispartofBiology of Sport
dc.relation.ispartofjcr1.729
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectCatalaseen
dc.subjectMalondialdehydeen
dc.subjectOxidative stressen
dc.subjectAcute exerciseen
dc.subjectReactive oxygen speciesen
dc.titlePRODUCTION of FREE RADICALS and CATALASE ACTIVITY DURING ACUTE EXERCISE TRAINING IN YOUNG MENen
dc.typeArtigo
dcterms.rightsHolderInst Sport
unesp.author.lattes4472007237545596
unesp.author.orcid0000-0002-1232-0488[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Educação Física - IBRC