August 1, 1999Acta Physiologica Scandinavica
Hyperoxia does not increase peak muscle oxygen uptake in small muscle group exercise
Why the study?
Does inspiring 60% O2 increase peak muscle oxygen uptake in young trained individuals during small muscle group exercise?
Population
8 young, trained individuals (5 men, 3 women)
Comparison
Inspiring 60% O2 during single-leg… vs Inspiring normal air during the same exercise
Design
Other
Authors
Discussion
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Overview
Hyperoxia does not raise limb VO2peak in small-muscle exercise; leaves open peripheral limitation to VO2peak in trained individuals.
Structured PICO
Does inspiring 60% O2 increase peak muscle oxygen uptake in young trained individuals during small muscle group exercise?
P
Population
8 young, trained individuals (5 men, 3 women)
I
Intervention
Inspiring 60% O2 (HiOX) during single-leg knee-extension exercise at 70% and 100% of maximum
C
Comparator
Inspiring normal air (NOX) during the same exercise
O
Outcome
Peak oxygen uptake (VO2peak) of the exercising limbsurrogate
Hyperoxia does not increase peak muscle oxygen uptake during small muscle group exercise, suggesting a peripheral limitation for VO2peak such as mitochondrial O2 turnover saturation or tissue diffusion limitation.
Cite This Study
Pedersen et al. (1999) studied this question.