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Cycles in metabolism and heat lossUsing calorimetric techniques, subjects' metabolism, thermoregulation, and body temperatures were monitored continuously for 24-hour days, using three types of experimental routines. A water cooling garment (WCG) was used for direct calorimetry, while partitional calorimetry was used to establish a non-suited comparison for one of the routines. In this replicated routine, called the quiet day, the subjects were sedentary throughout the daytime hours and slept normally at night. Results indicate that the WCG may act to reduce 24-hour total oxygen consumption (VO2) or heat production, possibly due to the lowered energy cost of thermoregulation.
Document ID
19740017514
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Annis, J. F. (Webb Associates Yellow Springs, OH, United States)
Troutman, S. J. (Webb Associates Yellow Springs, OH, United States)
Webb, P. (Webb Associates Yellow Springs, OH, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1974
Subject Category
Biosciences
Report/Patent Number
NASA-CR-134293
Accession Number
74N25627
Funding Number(s)
CONTRACT_GRANT: NAS9-12683
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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