title: Long-term follow-up of Skylab bone demineralization.
abstract: The os calcis mineral was measured in the nine Skylab crew members and in eight control subjects, 5 years after the Skylab Program, utilizing a photon absorptiometric technique. These measurements were compared with preflight measurements in an attempt to discover any long-term effects of space flight on the skeletal system. A statistically significant loss of bone mineral was found in the crew members who flew, but caution is urged in the interpretation of this difference. A recommendation to continue studies of this type is made.
mesh_terms: D000337:Aerospace Medicine; D002111:Calcaneus / Q000000981:diagnostic imaging; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000209:etiology*; D011877:Radionuclide Imaging; D013026:Space Flight; D014893:Weightlessness / Q000009:adverse effects