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Neuromuscular aspects in development of exercise countermeasuresThe paper reviews data obtained at the Human Life Sciences Research Program at the Kennedy Space Center on the structural and functional characteristics of the human muscle and on the effects of simulated microgravity (head-down bed rest) and exercise on the muscle. It is shown that prolonged exposure to microgravity induced ultrastructural abnormalities and the atrophy of muscle and impaired muscle functioning (especially upon return to terrestrial gravity) and that ground-based models can be effectively used to study these changes. Results indicate that the incorporation of resistive exercise with a strong emphasis on the use of eccentric muscle action, in addition to concentric action, may provide a very effective countermeasure against muscle atrophy and dysfunction caused by long-duration exposures to microgravity.
Document ID
19920056543
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Convertino, Victor A.
(NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1991
Publication Information
Publication: Physiologist, Supplement
Volume: 34
Issue: 1, Fe
ISSN: 0031-9376
Subject Category
Aerospace Medicine
Accession Number
92A39167
Distribution Limits
Public
Copyright
Other

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