Control of Coronary Blood Flow During Exercise

GORMAN, M. W. and E.O. FEIGL. Control of coronary blood flow during exercise. Exerc. Sport Sci. Rev., Vol. 40, No. 1, pp. 37-42, 2012. During exercise, coronary blood flow increases to match the augmented myocardial oxygen demand because of tachycardia. Coronary vasodilation during exercise is via a combination of feedforward and feedback control mechanisms. Feedforward control is mediated by sympathetic beta-adrenoceptor vasodilation. Feedback vasodilator control is via a novel hypothesis where adenine nucleotides released from red blood cells act on endothelial purinergic receptors.