[Water metabolism in monkeys during 14-day anti-orthostatic hypokinesia].
Water balance parameters were measured in hypokinetic rhesus monkeys using tritiated water. During exposure the water content decreased by 18.4%, with 11.3% lost within the first 7 days. The rate of water renovation measured with respect to H3 half-life was decreased by a factor of 1.5 during the first week and increased by 10% during the second week, as compared to the pretest value. Daily water losses diminished by 30% during the first week and approached the pretest level during the second week. These findings are indicative of three phases in the time-course variations of water balance during head-down tilt.
D000818:Animals; D001834:Body Water / Q000378:metabolism*; D003681:Dehydration / Q000209:etiology; D004231:Diuresis; D007103:Immobilization; D008253:Macaca mulatta; D011187:Posture; D013997:Time Factors
Vodnyĭ obmen u obez'ian v protsesse 2-nedel'nogo prebyvaniia v usloviiakh antiortostaticheskoĭ gipokinezii.