NASA NTRS · 19910054888
Gravitational force and the cardiovascular system
Abstract
Ground-based simulation studies have been conducted to clarify the problems of the cardiovascular adaptation to alterations in gravitational force. Simulated microgravity experiments resulted in increases in cardiac stretch, urine flow, and sodium excretion, which were accompanied by lower plasma renin, aldosterone, and ADH. There appears to be a decrease in plasma volume as well as in sympathetic tone after 2-3 days of 0 Gz. Complete adjustment to 0 Gz is found within 8 h without a decrease in plasma volume, when subjects are allowed to dehydrate mildly.
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Pendergast, D. R., Olszowka, A. J., Rokitka, M. A., Farhi, L. E.. 1991-01-01. Gravitational force and the cardiovascular system. https://ntrs.nasa.gov/citations/19910054888
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