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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: J Physiol. 2020 Jan 19;598(3):599–610. doi: 10.1113/JP279135

Figure 3. Peripheral O2 transport and utilization at peak small muscle mass exercise.

Figure 3.

A comparison of O2 transport and utilization parameters assessed at maximal knee-extensor exercise in patients with chronic obstructive pulmonary disease (COPD) (n = 8) and control subjects (n = 8). Control data have been normalized to 100% as a point of reference for data collected in the patients with COPD. CaO2 – CvO2, arterial-venous O2 content difference; ḊMO2, quadriceps muscle O2 diffusional conductance; V̇MO2, quadriceps muscle O2 uptake; Q̇MO2, quadriceps O2 delivery. Data are presented as mean ± SEM. † significantly different from control subjects (p < 0.05).