NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Bioelectric activity of skeletal muscle under conditions of alternating action of g-Forces and weightlessnessThe bioelectric activity of the musculature of animals and man was studied during alternating g-forces and weightlessness. The appropriate conditions were reproduced in flight along a parabolic curve; in this case, weightlessness lasting 25-30 sec alternated with g-forces of about 2 g magnitude. Quite regular changes in the bioelectric activity of various groups of muscles were disclosed under g-forces and in weightlessness. Thus, muscle biopotential amplitudes of 130-180 microvolt in horizontal flight, increased to 190-330 microvolt under g-forces. In the subsequent weightlessness, an abrupt reduction in oscillation voltage was observed and, in a number of cases, phenomena, similar to the picture of bioelectric silence were noted.
Document ID
19750015052
Acquisition Source
Legacy CDMS
Document Type
Book
Authors
Yuganov, Y. M.
(Kanner (Leo) Associates Redwood City, CA, United States)
Kasyan, I. I.
(Kanner (Leo) Associates Redwood City, CA, United States)
Asyamolov, B. F.
(Kanner (Leo) Associates Redwood City, CA, United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1975
Publication Information
Publication: Weightlessness: Med. and Biol. Res. (NASA-TT-F-16105)
Subject Category
Aerospace Medicine
Accession Number
75N23124
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

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