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The recovery kinetics of limb blood flow (A), vascular conductance (B) and capillary blood flow (C) following dynamic plantar flexion exercise in controls and patients with chronic obstructive pulmonary disease (COPD). Insets: illustrations of the mean response time. Both for limb blood flow and vascular conductance, the mean response time was significantly slower in patients with COPD compared with controls (P < 0.05). Values are presented as means ± SE; a.u., arbitrary units.
