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Thermoregulation in hypergravity-acclimated ratsThe effect of acclimation to hypergravity on thermoregulatory responses of rats was determined by comparing data on core temperature, T(c), tail temperature, and O2 consumption in rats raised at 1 G (C) and at 2.1 G. It was found that, when C rats were exposed to an ambient temperature of 9 C concurrently with exposure to 2.1 G, the T(c) fell by about 6 C, while in rats acclimated to 2.1 G, the T(c) fell only by 1 C. Results of O2 consumption measurements showed that C rats exposed simultaneously to cold and hypergravity were not activating their thermogenic mechanism sufficiently to prevent a fall in T(c). In other experiments, rats acclimated to either 1 or 2.1 G were found to lack the ability to maintain their T(c) when exposed to a 5.8-G field or when cold-stressed at 1 G for extended times.
Document ID
19890060049
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Monson, Conrad B.
(NASA Ames Research Center Moffett Field, CA, United States)
Patterson, Susan L.
(NASA Ames Research Center Moffett Field, CA, United States)
Horowitz, John M.
(NASA Ames Research Center Moffett Field, CA, United States)
Oyama, Jiro
(NASA Ames Research Center Moffett Field, CA; California, University, Davis, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: Journal of Applied Physiology
Volume: 67
ISSN: 0161-7567
Subject Category
Life Sciences (General)
Accession Number
89A47420
Funding Number(s)
CONTRACT_GRANT: NAGW-1458
Distribution Limits
Public
Copyright
Other

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