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Cardiac output, heart rate, stroke volume, arterial (•), pulmonary (▴) and central venous (▪) pressure, and systemic vascular conductance during constant load supramaximal cycling to exhaustion. Data are means ± s.e.m. for 8 subjects, except heart rate and arterial blood pressure (n = 12) and pulmonary blood pressure (n = 3). *Different from 60 s, P < 0.05.
