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Caloric and exercise requirements of space flight - Biostereometric results from SkylabThe biostereometric study of the Skylab astronauts used stereophotogrammetry to make accurate three-dimensional measurements of body form, from which regional and total body volumes were derived. Volume changes in the thighs and calves, over the course of the flight, showed a high correlation with inflight exercise on the bicycle ergometer, and suggested that an exercise level of 80-100 W-min/d/kg lean body mass would be necessary to prevent inflight muscle atrophy. The bicycle ergometer is thus a relatively inefficient means of preventing leg muscle atrophy. Inflight caloric intake showed a high correlation with the change in volume of the buttocks, the abdomen, and the body as a whole, and suggested that a caloric intake of 47-51 kcal/d/kg lean body mass would be necessary to prevent a change in body fat. Only one of the astronauts exceeded this range and gained body fat; the group as a whole showed a mean fat loss of 1.2 kg.
Document ID
19790040624
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Whittle, M. W.
(Oxford Orthopaedic Engineering Centre Oxford, United Kingdom)
Date Acquired
August 9, 2013
Publication Date
February 1, 1979
Subject Category
Aerospace Medicine
Accession Number
79A24637
Funding Number(s)
CONTRACT_GRANT: NAS9-11604
Distribution Limits
Public
Copyright
Other

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