Effect of normobaric hypoxia exposure and exercise on attention

Julia C. Andreossi; Felipe A. Ribeiro; Danilo R. Bertucci; Marcelo Papoti

doi:10.20338/bjmb.v16i1.270

Effect of normobaric hypoxia exposure and exercise on attention

Authors

Julia C. Andreossi School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
Felipe A. Ribeiro School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
Danilo R. Bertucci Department of Sports Science, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
Marcelo Papoti School of Physical Education and Sport of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil

DOI:

https://doi.org/10.20338/bjmb.v16i1.270

Keywords:

Normobaric hypoxia, Hyposia dose, Exhaustive effort, Cognitive performance, Attention

Abstract

BACKGROUND: Environment with low oxygen availability can have detrimental effects on cognitive abilities. Nevertheless, exercise can have beneficial effects on cognitive abilities, and these effects may vary with the environment. Therefore, it is important for the performance of individuals to understand the uncertainties about the conditions that can compromise cognitive function.

AIM: To identify which hypoxic conditions can cause attention disturbance.

METHOD: A total of fourteen volunteers (24.4 ± 3.9 years old; 82.8 ± 14.9 kg weight; 178.6 ± 7.9 cm height) participated in this single-blind, randomized, with a within-subjects design study. Participants completed an adapted version of the Stroop Color-Word Test (SCWT) before and after exposure in normoxia and hypoxia (FIO 2 = 0.209 and 0.138, respectively), in two conditions: (i) at rest for 30 minutes and (ii) under exhaustive effort. The data were analyzed using a Bayesian statistical approach.

RESULTS: SCWT performance under hypoxic conditions showed no difference compared with exposure moments (before and after), as well as showed no difference compared with normoxic conditions. The SpO 2 in hypoxic conditions was significantly lower than in normoxia conditions, unlike HR, which revealed no difference. The hypoxia dose at rest and under exhaustive effort was 2.5 and 0.8 %.h, respectively.

CONCLUSION: Despite a drop in SpO 2 and with hypoxia doses equivalent to 2.5 and 0.8 %.h, it was not possible to confirm differences in the indices related to attention. This indicates the existence of a minimum hypoxia dose to affect cognitive performance.

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Published

2022-03-01

How to Cite

Andreossi, J. C., Ribeiro, F. A., Bertucci, D. R., & Papoti, M. (2022). Effect of normobaric hypoxia exposure and exercise on attention. Brazilian Journal of Motor Behavior, 16(1), 11–25. https://doi.org/10.20338/bjmb.v16i1.270

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Issue

Vol. 16 No. 1 (2022)

Section

Research Articles

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