We examined whether regular exercise augments cardiopulmonary baroreflex control of vascular resistance in man. Cardiopulmonary baroreflex control of vascular resistance was assessed by measuring reflex forearm vasoconstriction in response to lower body negative pressure (LBNP) at 10mmHg. Reflex forearm vasoconstriction in response to LBNP at 10mmHg. was greater., 1) in exercising subjects (n=10) as compared with the results in non-exercising subjects (n=27), and greater. 2) after four months of exercise as compared with the results before exercise in the same subjects (n=7). These results suggest that regular exercise augments cardiopulmonary baroreflex control of vascular resistance.

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