Salivary concentrations of cortisol and testosterone and prediction of performance in a professional triathlon competition

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dc.contributor.author Balthazar, Claudio Heitor [UNIFESP]
dc.contributor.author Garcia, Marcia Carvalho [UNIFESP]
dc.contributor.author Spadari-Bratfisch, Regina Celia [UNIFESP]
dc.date.accessioned 2016-01-24T14:27:41Z
dc.date.available 2016-01-24T14:27:41Z
dc.date.issued 2012-09-01
dc.identifier http://dx.doi.org/10.3109/10253890.2011.642033
dc.identifier.citation Stress-the International Journal On the Biology of Stress. London: Informa Healthcare, v. 15, n. 5, p. 495-502, 2012.
dc.identifier.issn 1025-3890
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/35264
dc.description.abstract The aim of this study was to examine salivary cortisol and testosterone concentrations in professional male athletes during a short triathlon competition using non-invasive methods, and to determine whether these hormone concentrations could be accurate predictors of performance. Eight adult male athletes (age, mean +/- SEM: 27.8 +/- 3.2 years; body mass index: 21.66 +/- 0.42) in a professional triathlon team volunteered to participate in this study. Saliva samples were taken on the competition day and 7 days after competition on a rest day. the performance of the athletes was assessed by their rank order in the competition. Salivary cortisol concentrations were greater on the competition day than on the rest day in the early morning, immediately after waking up, 30 min later, immediately before the start of the competition, and later in the evening. Testosterone concentrations were greater on the competition day in the morning and in the evening. the diurnal rhythm of both cortisol and testosterone concentrations was maintained on both days and the testosterone/cortisol ratio (T/C ratio) was similar between days. the performance of the athletes was positively correlated with salivary cortisol concentration in the early morning of the competition day, but was not correlated with testosterone concentrations at any of the time points. in conclusion, early morning salivary cortisol concentration, but not T/C ratio, could be used to predict performance in athletes during a professional triathlon competition. en
dc.description.sponsorship Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent 495-502
dc.language.iso eng
dc.publisher Informa Healthcare
dc.relation.ispartof Stress-the International Journal On the Biology of Stress
dc.rights Acesso restrito
dc.subject Cortisol en
dc.subject physical performance en
dc.subject physical stress en
dc.subject T/C ratio en
dc.subject testosterone en
dc.subject triathlon en
dc.title Salivary concentrations of cortisol and testosterone and prediction of performance in a professional triathlon competition en
dc.type Artigo
dc.rights.license http://informahealthcare.com/userimages/ContentEditor/1255620309227/Copyright_And_Permissions.pdf
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Fed Univ Jequitinhonha & Mucuris Valleys
dc.description.affiliation Fed Univ São Paulo UNIFESP, Dept Biosci, São Paulo, Brazil
dc.description.affiliation Fed Univ Jequitinhonha & Mucuris Valleys, Dept Physiotherapy, Diamantina, MG, Brazil
dc.description.affiliationUnifesp Fed Univ São Paulo UNIFESP, Dept Biosci, São Paulo, Brazil
dc.identifier.doi 10.3109/10253890.2011.642033
dc.description.source Web of Science
dc.identifier.wos WOS:000307904200005



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