Changes in the human cardiohemodynamics under the influence of postural tests

Cardiohemodynamics in basketball players (n=7) at postural tests was investigated by echocardiography method. Individual peculiarities of linear velocity of blood flow through aortic valve (Vlin), stroke volume (SV), cardiac output and heart beats (HR) at «uprightin a lying- upright» tests were shown. Clinostatic test is followed by increasing of Vlin from 78,1±11,4 up to 105,3±12,3 cм·s-1 (M±SD). HR is decreased from 82±15 to 64±6 b·min-1. Orthostatic test changes in 1 min all data to initial level.Physiological mechanism of hemodynamic changes in these conditions is discussed.