Diferentes modelos de regresión para describir la relación VO.2-FC y para estimar el VO.2 a diferentes intensidades de esfuerzo

  1. Garatachea Vallejo, Nuria
  2. Paz Fernández, José Antonio de
  3. García López, David
Revista:
Cultura, ciencia y deporte

ISSN: 1696-5043

Ano de publicación: 2005

Volume: 1

Número: 3

Páxinas: 131-135

Tipo: Artigo

DOI: 10.12800/CCD.V1I3.119 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Outras publicacións en: Cultura, ciencia y deporte

Resumo

Many studies demonstrate the potential of the heart rate (HR) to estimate the energy expenditure of a specific physical activity, since it is directly related to the oxygen uptake (V. O2). Studies describe the V. O2-HR relationship as linear for a great range of effort, apart from the resting, although there have been proposed different continuous nonlinear mathematical functions. Nevertheless, there is no agreement for the best-suited equation by the moment. There are also studies which report changes in the V. O2-HR relationship according to the intensity of the effort. Our objective was to determine which is the best mathematical function to describe the existing relationship among HR and V. O2, and to state which one is the best mathematical function to estimate the V. O2 at different intensities of effort. Fourteen subjects performed a maximal test on a cycle ergometer, and another test which consisted in pedalling at 5 different intensities of effort (40, 50, 60, 70 and 80 % of the V. O2max ) during 3 minutes. V. O2 and HR data were collected during both tests. The linear model and the potential model were the most exact mathematical models to describe V. O2-HR relation. The greater estimate error was found at low effort intensities. In conclusion, selecting the regression model can possibly affect of the monitoring method for the HR.

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