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Response to graded Lower Body Negative Pressure (LBNP) after space flightThe effects of space flight on orthostatic function were studied. LBNP tests (0 to -60 mmHg) were administered to 7 crew members preflight and 2 to 6 hrs after 6 to 9 day shuttle missions. Cardiac stroke volumes were obtained each minute by echo Doppler. Orthostatic responses are given. The data suggest a decline in postflight orthostatic function, as assessed by LBNP, due to reduced cardiac filling despite potentiated heart rate and vasoconstrictor reflex responses in most crew members.
Document ID
19940029131
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fortney, S. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Charles, J. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Wood, M. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Dussack, T. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1994
Publication Information
Publication: Seventh Annual Workshop on Space Operations Applications and Research (SOAR 1993), Volume 2
Subject Category
Aerospace Medicine
Accession Number
94N33637
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19940028941Collected WorksFirst Annual High-Speed Research Workshop, part 1
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