Figure 2 | Scientific Reports

Figure 2

From: Quadriceps physiological response during the 1-min sit-to-stand test in people with severe COPD and healthy controls

Figure 2

Time course of quadriceps (a) oxygenated (Δ oxy [Hb-Mb]), (b) deoxygenated (Δ deoxy [Hb-Mb]), (c) total (Δ total [Hb-Mb]) myoglobin–hemoglobin concentration, and (d) muscle saturation index (Δ SmO2) during the 1STS and 4 min of recovery in people with COPD (full circles) and healthy subjects (open circles). Results are presented as mean ± SEM. Exercise and recovery data were analysed with two distinct two-way repeated measure ANOVAs, the p values report the interaction group × time during the 1STS and during the recovery periods, separately.

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