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Gravitational force and the cardiovascular systemGround-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.
Document ID
19910054888
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Pendergast, D. R.
(State Univ. of New York Buffalo, NY, United States)
Olszowka, A. J.
(State Univ. of New York Buffalo, NY, United States)
Rokitka, M. A.
(State Univ. of New York Buffalo, NY, United States)
Farhi, L. E.
(New York, State University Buffalo, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Aerospace Medicine
Accession Number
91A39511
Funding Number(s)
CONTRACT_GRANT: NAS9-16042
Distribution Limits
Public
Copyright
Other

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