Effects of the sudden climbing to an average height over the subjective perception of effort in different levels of exercise

Authors

  • B. Feriche
  • M. Delgado
  • J. Álvarez
  • P. Rodríguez

Abstract

Sixteen healthy males, were submitted to a maximum incremental test in conditions of normoxia (N) and of moderate acute altitude (Alt) in two different days. Rating of perceived exertion (RPE), respiratory data, heart rate and lactate were measured during the test. The values at maximum work and at the lactate thresold (LT) were compared between both conditions. Meaningful differences between the work, RPE, VO2 (l.min-1), Ve (l.min-1) y Lac (mMol.l-1) were not observed at the related intensities. However, though the HR registered in N at the LT did not show differences with the HR obtained in Alt, there was an important reduction of the HR at the maximum work reached in the condition of hypoxia (188 ± 9 vs 182 ± 7 ppm, p<.001). The sudden ascent to a moderate altitude does not alter the RPE in the LT, neither at the maximum work. Under these conditions the HR seems not to be so good index of the work intensity as the RPE.
KEY WORDS: RPE, altitude, hypoxia, lactate threshold.

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Author Biographies

B. Feriche

Departamento de Educación Física y Deportiva. Facultad de Ciencias de la Actividad Física y el Deporte. Universidad de Granada.

M. Delgado

Departamento de Educación Física y Deportiva. Facultad de Ciencias de la Actividad Física y el Deporte. Universidad de Granada.

J. Álvarez

Servicios Médicos del Centro de Alto Rendimiento de Sierra Nevada. Consejo Superior de Deportes.

P. Rodríguez

Servicios Médicos del Centro de Alto Rendimiento de Sierra Nevada. Consejo Superior de Deportes.

Published

2010-09-07

Issue

Section

Original Research

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