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Human cardiovascular response to sympathomimetic agents during head-down bed rest: the effect of dietary sodiumChanges in sympathoadrenal function and cardiovascular deconditioning have long been recognized as a feature of the physiological adaptation to microgravity. The deconditioning process, coupled with altered hydration status, is thought to significantly contribute to orthostatic intolerance upon return to Earth gravity. The cardiovascular response to stimulation by sympathomimetic agents before, during, and after exposure to simulated microgravity was determined in healthy volunteers equilibrated on normal or high sodium diets in order to further the understanding of the deconditioning process.
Document ID
20040089957
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Williams, W. J.
(NASA Johnson Space Center Houston TX United States)
Stuart, C. A.
Fortney, S. M.
Pietrzyk, R. A.
Chen, Y. M.
Whitson, P. A.
Date Acquired
August 21, 2013
Publication Date
May 1, 1994
Publication Information
Publication: Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology
Volume: 1
Issue: 1
ISSN: 1077-9248
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 18-10
NASA Discipline Regulatory Physiology
NASA Program Space Physiology and Countermeasures
NASA Discipline Cardiopulmonary
NASA Center JSC
NASA Discipline Number 14-10

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