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Autonomic Responses to MicrogravityThe purpose of this report is to describe how changes in autonomic nervous system responses may be used as an index of individual differences in adaptational capacity to space flight. During two separate Spacelab missions, six crewmembers wore an ambulatory monitoring system which enabled continuous recording of their physiological responses for up to twelve hours a day for 3 to 5 mission days. The responses recorded were electrocardiography, respiration wave form, skin conductance level, hand temperature, blood flow to the hands and triaxial accelerations of the head and upper body. Three of these subjects had been given training, before the mission, in voluntary control of these autonomic responses as a means of facilitating adaptation to space. Three of these subjects served as Controls, i.e., did not receive this training but took anti-motion sickness medication. Nearly 300 hours of flight data are summarized. These data were examined using time-series analyses, spectral analyses of heart rate variability, and analyses of variance. Information was obtained on responses to space motion sickness, inflight medications, circadian rhythm, workload and fatigue. Preliminary assessment was made on the effectiveness of self-regulation training as a means of facilitating adaptation, with recommendations for future flights.
Document ID
20010116598
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Toscano, W. B.
(California Univ. Los Angeles, CA United States)
Cowings, P. S.
(NASA Ames Research Center Moffett Field, CA United States)
Miller, N. E.
(Yale Univ. New Haven, CT United States)
Date Acquired
August 20, 2013
Publication Date
August 15, 1994
Subject Category
Aerospace Medicine
Meeting Information
Meeting: Fifth International Symposium on the Autonomic Nervous System
Location: Rochester, MN
Country: United States
Start Date: October 21, 1994
End Date: October 23, 1994
Funding Number(s)
PROJECT: RTOP 199-70-12-14
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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