title: Moderate physical activity and bone density among perimenopausal women.
abstract: We examined the association between physical activity and bone mineral density (BMD) among 352 perimenopausal women. A personal activity computer was used to estimate the daily energy expenditure on physical activity. BMD was measured by photon absorptiometry at the lumbar spine, midradius, and distal radius. Multiple linear regression, controlling for other factors, indicated that physical activity was positively and significantly associated with BMD at all sites. Moderate physical activity has beneficial effects on BMD among perimenopausal women.
authors.affiliation: Division of Reproductive Epidemiology and Sexually Transmitted Diseases, Family Health International, Durham, NC.
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: P J
authors.initials: PJ
authors.lastname: Feldblum
authors.forename: J A
authors.initials: JA
authors.lastname: Fortney
mesh_terms: D000328:Adult; D015519:Bone Density; D001942:Breast Feeding; D002136:Calcium, Dietary; D003276:Contraceptives, Oral; D003430:Cross-Sectional Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008593:Menopause; D008875:Middle Aged; D011877:Radionuclide Imaging; D011884:Radius / Q000000981:diagnostic imaging
chemical_list: D002136:Calcium, Dietary; D003276:Contraceptives, Oral