Lack of the slow component in VO2 in ramp protocol

Lack of the slow component in VO2 in ramp protocol

Authors

  • Adriano Eduardo Lima Silva LADESP- Escola de Educação Física e Esporte da USP
  • João Fernando Laurito Gagliardi LADESP- Escola de Educação Física e Esporte da USP
  • Renato Fraga Moreira Lotufo Instituto de Avaliação Física do Esporte (IAFE)
  • Maria Augusta Peduti Dal’ Molin Kiss LADESP- Escola de Educação Física e Esporte da USP

DOI:

https://doi.org/10.5016/387

Keywords:

Consumo de oxigênio, protocolo de rampa, cinética de VO2, componente lento do VO2

Abstract

The purpose of this study was to identify a non-linear increase in the relationship VO2-power output in twelve individuals who were submitted to the ramp protocol in cycle ergometer (25 W.min-1). The VO2 (mL.min-1) was plotted as a function of power output (W) and linear regression equation was generated from the data below LV1. The VO2 above LV1 was predicted by this equation and compared to the measured values. An angle difference between two segments, below and above VL1, was also identified to describe the degree of the curve modification. The measured VO2 above LV1 was not different from the predicted in any of the power output and the angle differences between segments were not significant. This linear increase was probably found due to a greater increment and to a shorter duration of the stages used in this study, in relation to the data reported in the literature.

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Published

2007-06-19

Issue

V. 10, N. 3 (2004)

Section

Original Articles

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