Figure 5. Correlations between nadir oxyhaemoglobin saturation ($F_{{\mathrm{O}}_2\mathrm{Hb}}$) and quadriceps function between the hyperoxia and control constant load exercise trials.

For all panels, quadriceps function was assessed using the average potentiated twitch amplitude 3 min post‐exercise. A and B show the absolute and relative increase in quadriceps twitch force, respectively. C shows the percentage attenuation in quadriceps fatigue after the hyperoxia trial.