2006
DOI: 10.1590/s1517-86922006000600004
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Freqüência cardíaca máxima em esteira ergométrica em diferentes horários

Abstract: Como muitas medidas do desempenho humano apresentam variações circadianas que parecem acompanhar o ritmo da temperatura corporal, o objetivo deste estudo foi comparar a freqüência cardíaca máxima (FCmax) no teste de Bruce (Tbruce) em diferentes horários do dia. Foram estudados 11 indivíduos do gênero masculino, com 22,0 ± 1,6 anos, fisicamente ativos e do cronotipo intermediário. Observaram-se FC de repouso (FCrep), FC máxima (FCmax), percepção de esforço (PE) e tempo até a exaustão (TBruce). Para medir a FC, … Show more

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Cited by 12 publications
(6 citation statements)
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“…Therefore, there is a possibility that the players express the highest individual value, improving the accuracy of the prescriptions and training control by the MHR. Afonso et al (39) also alert on the circadian influence in the MHR response. Decrease in the MHR was observed in the dark phase of the dark-light cycle in their study using the Bruce protocol on treadmill, which would lead to the need to consider the individual circadian variations in order to observe and prescribe activities having this variable as a parameter, especially at later times.…”
Section: Margaria Test Yo-yo Ir2 Test Discussionmentioning
confidence: 99%
“…Therefore, there is a possibility that the players express the highest individual value, improving the accuracy of the prescriptions and training control by the MHR. Afonso et al (39) also alert on the circadian influence in the MHR response. Decrease in the MHR was observed in the dark phase of the dark-light cycle in their study using the Bruce protocol on treadmill, which would lead to the need to consider the individual circadian variations in order to observe and prescribe activities having this variable as a parameter, especially at later times.…”
Section: Margaria Test Yo-yo Ir2 Test Discussionmentioning
confidence: 99%
“…A adoção de hábitos saudáveis pode, dessa forma, proporcionar às pessoas melhores condições para enfrentarem a busca constante da melhor performance, visto que nossas capacidades físicas sofrem influencias ao longo do dia 3 .…”
Section: Introductionunclassified
“…Although BP measurements were undertaken during the known blood pressure morning plateau, other variables were obtained throughout the day (i.e., spirometry and CPET). Similar to blood pressure, lung function, heart rate, and cardiorespiratory fitness have diurnal and seasonal variations that must be considered (16,(36)(37)(38). As these evaluations were carried out during the morning and afternoon, this is another limitation of the present study.…”
Section: Discussionmentioning
confidence: 95%