Belkaniia G S, Dartsmeliia V A
Kosm Biol Aviakosm Med. 1985 Jan-Feb;19(1):31-9.
Typological characteristics of central and peripheral (legs and viscera) circulation were identified in 90 clinically healthy people exposed to active and passive orthostatic tests. The following three hemodynamic states were distinguished: hypokinetic, hyperkinetic, and intermediate types of circulation. As compared to the passive tests, in the active states cardiac output decreased, leg blood flow increased, and viscera blood flow decreased. At the stage of stabilized hemodynamics inotropic cardiac stimulation was predominant during active orthostatic tests and chronotropic cardiac stimulation was predominant during passive orthostatic tests. In the former tests changes in cardiac output and blood redistribution between leg and viscera circulations were more distinct. Mechanisms of hemodynamic changes are discussed.
在90名接受主动和被动直立试验的临床健康人群中，确定了中枢和外周（腿部和内脏）循环的类型学特征。区分出以下三种血流动力学状态：低动力型、高动力型和中间型循环。与被动试验相比，在主动状态下心输出量减少，腿部血流量增加，内脏血流量减少。在主动直立试验中，血流动力学稳定阶段以心肌收缩性刺激为主，而在被动直立试验中以心率性刺激为主。在前一种试验中，心输出量的变化以及腿部和内脏循环之间的血液重新分布更为明显。文中讨论了血流动力学变化的机制。
