The Acute Effect of Hyperoxia on Onset of Blood Lactate Accumulation (OBLA) and Performance in Female Runners during the Maximal Treadmill Test

Thays C. Silva, Felipe J. Aidar, Aristela de Freitas Zanona, Dihogo Gama Matos, Danielle D. Pereira, Paulo Emmanuel Nunes Rezende, Alexandre Reis Pires Ferreira, Heleno Almeida Junior, Jymmys Lopes dos Santos, Devisson dos Santos Silva, Felipe Douglas Silva Barbosa, Mabliny Thuany and Raphael F. de Souza
Additional contact information
Thays C. Silva: Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Felipe J. Aidar: Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Aristela de Freitas Zanona: Department of Occupational Therapy, Federal University of Sergipe—UFS, Sergipe 49100-000, Brazil
Dihogo Gama Matos: Group of Studies and Research of Performance, Sport, Health and Paralympic Sports (GEPEPS), Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Danielle D. Pereira: Group of Studies and Research of Performance, Sport, Health and Paralympic Sports (GEPEPS), Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Paulo Emmanuel Nunes Rezende: Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Alexandre Reis Pires Ferreira: College of Physical Education, University of Brasília–UnB, Brasília 70910-900, Brazil
Heleno Almeida Junior: Post Graduate Program in Physiology Sciences, Department of Physiology, Federal University of Sergi, pe—UFS, São Cristóvão 49100-000, Brazil
Jymmys Lopes dos Santos: Post-Graduation Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Devisson dos Santos Silva: Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Felipe Douglas Silva Barbosa: Post Graduate Program in Health Sciences, Federal University of Sergipe—UFS, Sergipe 49100-000, Brazil
Mabliny Thuany: Post-Graduation Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil
Raphael F. de Souza: Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe 49100-000, Brazil

IJERPH, 2021, vol. 18, issue 9, 1-10

Abstract: The objective of this study was to analyze the acute effect of hyperoxia during the maximal treadmill test (MTT) of runners. Participants included 10 female street runners who performed the MTT under two different conditions: hyperoxia (HYPX), inhaling oxygen (60% O 2 ) every 3 min; and normoxia (NORM), without additional oxygen inhalation. Both groups performed the MTT with increases in the slope of the run every 3 min until voluntary exhaustion. The variables of lactate concentration, the onset of blood lactate accumulation (OBLA), peripheral oxygen saturation (SpO 2 ), heart rate (HR), and Borg scale were evaluated. It was verified after the comparison (HYPX vs. NORM) that stage 3 ( p = 0.012, Cohen’s d = 1.76) and stage 4 ( p < 0.001; Cohen’s d = 5.69) showed a reduction in lactate under the HYPX condition. OBLA under the HYPX condition was identified at a later stage than NORM. There were no differences in Borg scale, SpO 2 , and HR between the different conditions. It was concluded that the HYPX condition contributed to a reduction in lactate concentration and delayed OBLA in runners.

Keywords: anaerobic; hyperoxia; running (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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