Effects of acute hypoxia at rest exposure on time trial performance of national category cyclists.

Authors

  • Jesus Torres-Pérez Faculty of Education and Sport, University of the Basque Country (UPV/EHU), 01007, Vitoria-Gasteiz, Spain https://orcid.org/0000-0002-7648-9389
  • Aitor Pinedo-Jauregi Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country UPV-EHU, Vitoria-Gasteiz, Spain; Bioaraba, Physical Activity, Exercise and Health Group, Vitoria-Gasteiz, Spain.
  • Jesús Cámara GIzartea, Kirola eta Ariketa Fisikoa Ikerkuntza Taldea (GIKAFIT), Physical Education and Sport Department, Faculty of Education and Sport, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
  • Javier Yanci GIzartea, Kirola eta Ariketa Fisikoa Ikerkuntza Taldea (GIKAFIT), Physical Education and Sport Department, Faculty of Education and Sport, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain

Keywords:

altitude, hypoxia, cycling, performance, physiology, hypocapnia

Abstract

The aim of this study was to analyze the effects of rest exposure to hypoxia at performance on a simulated cycling time trial (TT) in normoxia cycling. Nine cyclists of national class participated in the study. A single blind, cross-over randomised study  in which participants performed two test sessions on two different days in the laboratory was conducted. First, they were exposed to normobaric hypoxia simulating an altitude of 4500 m above sea level (FiO2=0.09) or normoxia for 30 min. After hypoxia or normoxia exposure, participants performed a 20-min simulated TT. Mechanical performance variables, perceived exertion and economy and gross efficiency (GE) amongs other physiological variables were measured. The results showed that hypoxia exposure did not provoke any changes neither in physiological variables, mechanical performance variables and perception of effort (p > 0.05, ES = -0.03 – -0.25, trivial to small), nor in economy and GE (p > 0.05, ES = 0.450, small, -0.139, trivial, respectively). The results suggest that a 30-min rest hypoxia exposure does not affect performance in a 20-min simulated TT in a cycle ergometer under normoxic conditions.

t

Downloads

Download data is not yet available.

Published

2023-10-23

How to Cite

Torres-Pérez, J., Pinedo-Jauregi, A., Cámara, J., & Yanci, J. (2023). Effects of acute hypoxia at rest exposure on time trial performance of national category cyclists. Journal of Science and Cycling, 12(2), 65-68. Retrieved from https://www.jsc-journal.com/index.php/JSC/article/view/812

Issue

Vol. 12 No. 2 (2023): Special Issue of the 2023 Science & Cycling Congress | Bilbao - June

Section

Science & Cycling Conference, Bilbao 2023

Copyright (c) 2023 Journal of Science and Cycling

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors contributing to Journal of Science and Cycling agree to publish their articles under a Creative Commons CC BY-NC-ND license, allowing third parties to copy and redistribute the material in any medium or format, and to remix, transform, and build upon the material, for any purpose, even commercially, under the condition that appropriate credit is given, that a link to the license is provided, and that you indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

Authors retain copyright of their work, with first publication rights granted to Cycling Research Center.