Underlying mechanisms of oxygen uptake kinetics in chronic post-stroke individuals: A correlational, cross-sectional pilot study
Fig 2
Oxygen uptake on- (A and C) and off-kinetics (B and D) response to the 6-minute walk test. Oxygen uptake raw data (A and B) measured breath-by-breath from a sixty-two-year-old woman with stroke and severe motor function impairment. The outliers (values above 3 standard deviations) were removed and a moving average filter was used by averaging the values over consecutive periods of 8 breaths (C and D). The vertical two dashed lines in each panel indicate the beginning and the end of the posture transition, in sequence. mL/kg/min, milliliter per kilogram per minute; s, second; , oxygen uptake;
, oxygen uptake at rest;
, oxygen uptake during the recovery period;
, oxygen uptake during effort at steady-state level;
, oxygen uptake on-kinetics magnitude of response (
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);
, oxygen uptake off-kinetics magnitude of response (
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).