The effect of exercise on the central‐chemoreceptor threshold in man.

摘要: 1. The threshold of the central chemoreceptors was determined under resting and three exercise conditions in four volunteers. 2. method used hyperoxic, Read rebreathing technique with prior hyperventilation. Plots ventilation vs. carbon dioxide consisted two straight-line segments different slopes above below a breakpoint which taken as central-chemoreceptor at rest. 3. during from plots similar way, but points for these were obtained manner. They number separate experiments, so to avoid divergence between mouth levels exercise. 4. Exercise started abruptly experiments those rest, particular level dioxide, measured third breath. Each experiment therefore provides one point plot. 5. results showed that not threshold, initial, fast component independent chemical drive breathe.