title: [Antiorthostatic hypokinesia as an approximate model of weightlessness].
abstract: Eight test subjects were exposed to a five-day bed rest experiment in the recumbent and head-down position (at an angle of 0 degrees,--4 degrees,--8 degrees, and--12 degrees) to study the physiological effects of the exposure. The head-down tilting at--4 degrees and--12 degrees was shown to simulate physiological effects of real space flight better than bed rest at 0 degrees. The results made it possible to model an acute stage of weightlessness adaptation and to assay the contribution of gravity-induced blood redistribution to the physiological reactions.
mesh_terms: D000328:Adult; D001510:Bed Rest; D001794:Blood Pressure; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008954:Models, Biological; D009666:Nose / Q000502:physiology; D009799:Ocular Physiological Phenomena; D011187:Posture; D011674:Pulse; D013997:Time Factors; D014893:Weightlessness
vernacular_title: Antiortostaticheskaia gipokineziia kak priblizhennaia model' nevesomosti.