Key result
High-fitness participants were significantly more likely to display a VO2 overshoot during moderate-intensity exercise compared to moderate-fitness participants (83% vs 61%, p = 0.035).
Cross-Sectional (n=23)
Randomized order of exercise bouts
No
Absolute Event Rate: 83% vs 61%
p-value: p=0.035
Fitness status affects the likelihood of an oxygen uptake overshoot during moderate-intensity exercise, questioning the traditional mono-exponential modeling approach.
Fitness influences VO2 overshoot likelihood; challenges mono-exponential modeling assumptions and leaves effects on testing open.
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Dale et al. (2018) conducted a cross-sectional in Healthy volunteers (endurance-trained and active individuals) (n=23). Moderate-intensity exercise (70%, 82.5%, and 95% of gas exchange threshold) vs. Moderate-fitness individuals was evaluated on Occurrence of VO2 overshoot (p=0.035). High-fitness participants were significantly more likely to display a VO2 overshoot during moderate-intensity exercise compared to moderate-fitness participants (83% vs 61%, p = 0.035).
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