Fig. 4From: The effects of hypoxia on muscle deoxygenation and recruitment in the flexor digitorum superficialis during submaximal intermittent handgrip exerciseCorrelation between muscle saturation of oxygen (SmO2) and arterial saturation of oxygen measured by pulse oximetry (SpO2) (r = − 0.01, not significant). Points represent SmO2 and SpO2 values collected over the 6 time-points of the hand grip exercise trial for each subject during hypoxiaBack to article page