NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The hemodynamic effects of repeated bed rest exposureThe effects of three 2-week periods of bed rest (with and without isometric/aerobic exercise, and separated by 3-week ambulatory recovery periods) on hemodynamic responses to stepwise application of LBNP (-20 to -40 mm Hg) are investigated experimentally in seven physically active male subjects aged 19-21 years. The data are presented in extensive tables and graphs and characterized in detail. It is found that bed rest produces significant changes in the responses of heart rate and end-diastolic volume index which (1) are greater than can be accounted for by lowered plasma volume, (2) persist during the recovery periods, and (3) do not respond to the exercises employed to prevent deconditioning.
Document ID
19890029344
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sandler, Harold
(NASA Ames Research Center Moffett Field, CA, United States)
Popp, Richard L.
(NASA Ames Research Center Moffett Field, CA, United States)
Harrison, Donald C.
(Stanford University CA, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1988
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 59
ISSN: 0095-6562
Subject Category
Aerospace Medicine
Accession Number
89A16715
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available