Effects of light-dark cycle manipulation on critical velocity and anaerobic running capacity in Wistar rats

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Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorDepartment of Physical Education-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Barros Manchado-Gobatto, F.-
Autor(es): dc.creatorGomes de Araujo, G.-
Autor(es): dc.creatorRibeiro, C.-
Autor(es): dc.creatorBarbosa Araújo, M.-
Autor(es): dc.creatorSoares de Alencar Mota, C.-
Autor(es): dc.creatorAlexandre Gobatto, C.-
Autor(es): dc.creatorRostom de Mello, M. A.-
Data de aceite: dc.date.accessioned2025-08-21T17:54:34Z-
Data de disponibilização: dc.date.available2025-08-21T17:54:34Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2012-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3920/CEP11014-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/232349-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/232349-
Descrição: dc.descriptionThe aim of the study was to assess the effect of the light-dark cycle on the critical velocity (CV) and the anaerobic capacity (ARC) of running rats. The entire experiment utilised two separate groups under two conditions: a regular light-dark cycle 12/12 hours (light on from 6:00 to 18:00 - RC group) and an altered light-dark cycle 12/12 hours (light on from 18:00 to 6:00 - AC group). First, running rat groups were selected. The animals were submitted to four exercise tests (25, 30, 35 and 40 m/min) performed until exhaustion. The times to exhaustion for each running intensity were recorded (tlim). The CV and ARC were estimated from the linear regression of 'velocity vs. 1/tlim', where the CV and ARC were the linear and slope coefficients, respectively. The running rat groups showed a significant difference in percent selection under the two light cycles (16.4% and 28.9% of running rats in the RC and AC groups, respectively). The CV was highest in the AC condition (CVRC = 22.7±0.8 m/min and CVAC = 25.5±0.4 m/min), but the ARC (ARCRC = 22.80±2.76 m and ARCAC = 21.80±4.93 m) and the linear fit (R RC 2 = 0.88±0.03 and R AC 2 = 0.85±0.02) were not different in both conditions These results indicate that caution is necessary when varying the circadian rhythm of rats submitted to running exercise, especially because their aerobic condition is improved when an altered light-dark cycle is used.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionLaboratory of Applied Sport Physiology School of Applied Sciences University of Campinas - UNICAMP, Pedro Zaccaria St. 1300-
Descrição: dc.descriptionFederal University of Alagoas - UFAL Department of Physical Education Campus A.C. Simões, Av. Lourival Melo Mota s/n-
Descrição: dc.descriptionSao Paulo State University - UNESP Department of Physical Education, Av. 24 A, no. 1515-
Descrição: dc.descriptionSao Paulo State University - UNESP Department of Physical Education, Av. 24 A, no. 1515-
Formato: dc.format71-78-
Idioma: dc.languageen-
Relação: dc.relationComparative Exercise Physiology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAerobic capacity-
Palavras-chave: dc.subjectAnaerobic capacity-
Palavras-chave: dc.subjectLight-dark cycle-
Palavras-chave: dc.subjectRunning rats-
Título: dc.titleEffects of light-dark cycle manipulation on critical velocity and anaerobic running capacity in Wistar rats-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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