[Effect of a physical load on the adrenergic receptor function of peripheral blood lymphocytes and thrombocytes in healthy donors].

Beta 2-adrenergic receptor density and platelet adenylate cyclase activity were determined in the peripheral blood of healthy donors during short-term physical exercise and compared to changes in biochemical parameters. The data obtained indicate the activation of sympathetic-adrenal system in general and suggest phasic regulation of catecholamine beta-adrenergic receptors.