Identification of anaerobic threshold using heart rate response during dynamic exercise

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMarães, Vera Regina Fernandes Silva-
Autor(es): dc.creatorSilva, Ester da-
Autor(es): dc.creatorCatai, Aparecida Maria-
Autor(es): dc.creatorSilva, Luciana Duarte Novais-
Autor(es): dc.creatorMoura, Maria Aparecida-
Autor(es): dc.creatorOliveira, Lucien de-
Autor(es): dc.creatorGallo Júnior, Lourenço-
Data de aceite: dc.date.accessioned2024-10-23T16:00:49Z-
Data de disponibilização: dc.date.available2024-10-23T16:00:49Z-
Data de envio: dc.date.issued2012-11-29-
Data de envio: dc.date.issued2012-11-29-
Data de envio: dc.date.issued2005-05-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/11712-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S0100-879X2005000500010-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/897786-
Descrição: dc.descriptionThe objective of the present study was to characterize the heart rate (HR) patterns of healthy males using the autoregressive integrated moving average (ARIMA) model over a power range assumed to correspond to the anaerobic threshold (AT) during discontinuous dynamic exercise tests (DDET). Nine young (22.3 ± 1.57 years) and 9 middle-aged (MA) volunteers (43.2 ± 3.53 years) performed three DDET on a cycle ergometer. Protocol I: DDET in steps with progressive power increases of 10 W; protocol II: DDET using the same power values as protocol 1, but applied randomly; protocol III: continuous dynamic exercise protocol with ventilatory and metabolic measurements (10 W/min ramp power), for the measurement of ventilatory AT. HR was recorded and stored beat-to-beat during DDET, and analyzed using the ARIMA (protocols I and II). The DDET experiments showed that the median physical exercise workloads at which AT occurred were similar for protocols I and II, i.e., AT occurred between 75 W (116 bpm) and 85 W (116 bpm) for the young group and between 60 W (96 bpm) and 75 W (107 bpm) for group MA in protocols I and II, respectively; in two MA volunteers the ventilatory AT occurred at 90 W (108 bpm) and 95 W (111 bpm). This corresponded to the same power values of the positive trend in HR responses. The change in HR response using ARIMA models at submaximal dynamic exercise powers proved to be a promising approach for detecting AT in normal volunteers.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherAssociação Brasileira de Divulgação Científica-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsBrazilian Journal of Medical and Biological Research - Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons(Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)). Fonte: http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-879X&lng=pt&nrm=iso. Acesso em: 07 nov. 2012.-
Palavras-chave: dc.subjectBatimento cardíaco-
Palavras-chave: dc.subjectCoração - contração-
Palavras-chave: dc.subjectExercícios físicos-
Palavras-chave: dc.subjectSistema cardiovascular-
Palavras-chave: dc.subjectLimiar anaeróbio-
Título: dc.titleIdentification of anaerobic threshold using heart rate response during dynamic exercise-
Tipo de arquivo: dc.typelivro digital-
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