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The skeleton in spaceCalcium loss experience by astronauts under weightless conditions is discussed. I-125 photon absorption measurements on astronauts on the Apollo 14, 15, and 16 flights showed bone density decreases of 6.6 percent in one astronaut and 7.3 percent in another. The estimated total body calcium loss on Apollo 17 was 0.2 percent. The test results indicate that calcium losses occur mainly from the weight-bearing parts of the skeleton. Measures to counteract the losses include 'penguin' suits, maintenance of nutrient intakes at high levels, and extensive exercise on ergometer and treadmill.
Document ID
19860027095
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Goode, A. W.
(London Hospital United Kingdom)
Rambaut, P. C.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 12, 2013
Publication Date
September 19, 1985
Publication Information
Publication: Nature
Volume: 317
ISSN: 0028-0836
Subject Category
Aerospace Medicine
Accession Number
86A11833
Distribution Limits
Public
Copyright
Other

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