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Cardiovascular adaptations in weightlessness: The influence of in-flight exercise programs on the cardiovascular adjustments during weightlessness and upon returning to EarthThe effect of in-flight exercise programs on astronauts' cardiovascular adjustments during spaceflight weightlessness and upon return to Earth was studied. Physiological changes in muscle strength and volume, cardiovascular responses during the application of lower body negative pressure, and metabolic activities during pre-flight and flight tests were made on Skylab crewmembers. The successful completion of the Skylab missions showed that man can perform submaximal and maximal aerobic exercise in the weightless enviroment without detrimental trends in any of the physiologic data. Exercise tolerance during flight was unaffected. It was only after return to Earth that a tolerance decrement was noted. The rapid postflight recovery of orthostatic and exercise tolerance following two of the three Skylab missions appeared to be directly related to total in-flight exercise as well as to the graded, regular program of exercise performed during the postflight debriefing period.
Document ID
19820015236
Acquisition Source
Legacy CDMS
Document Type
Other - Other
Authors
Bennett, C. H.
(Kentucky State Univ. Frankfort, KY, United States)
Date Acquired
August 10, 2013
Publication Date
August 20, 1981
Publication Information
Publication: Houston Univ. The 1981 NASA ASEE Summer Fac. Fellowship Program, Vol. 1
Subject Category
Aerospace Medicine
Accession Number
82N23110
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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