Krotov V P, Trambovetskiĭ E V
Aviakosm Ekolog Med. 1992 Jul-Aug;26(4):54-7.
Hemodynamic changes in the monkeys (2 groups of 3 animals each) during 6 degrees and 20 degrees head down tilts (HDT) of various duration have been studied. An increase of the arterial blood pressure and linear velocity of the blood flow in the common carotid artery was noted immediately after HDT followed by a compensatory decrease of the values. A significant decline in orthostatic tolerance after 20 degrees HDT with developing a precollaptoid state is indicated. The changes of a circulation pattern in the common carotid artery bed are induced by a cranial shifting of the body fluids.
研究了两组（每组3只动物）猴子在不同持续时间的6度和20度头低位倾斜（HDT）过程中的血流动力学变化。头低位倾斜后立即观察到动脉血压和颈总动脉血流线性速度增加，随后这些值出现代偿性下降。结果表明，20度头低位倾斜后出现明显的直立不耐受，并发展为预虚脱状态。体液向头部转移引起颈总动脉床循环模式的改变。
