title: Physical activity and breast cancer risk: the effect of menopausal status.
abstract: Convincing epidemiologic evidence exists that physical activity reduces breast cancer risk. The association may differ by menopausal status, because stronger evidence for a risk reduction exists for postmenopausal than for premenopausal women. This review examines potential reasons for the differences in effect by menopausal status, including possible underlying biologic mechanisms.
authors.affiliation: Division of Population Health and Information, Alberta Cancer Board, Calgary, Canada. chrisf@cancerboard.ab.ca
authors.forename: Christine M
authors.initials: CM
authors.lastname: Friedenreich
mesh_terms: D000367:Age Factors; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D019317:Evidence-Based Medicine; D015444:Exercise; D005260:Female; D006801:Humans; D008593:Menopause / Q000502:physiology*; D009043:Motor Activity; D011960:Receptors, Estrogen; D012307:Risk Factors
chemical_list: D011960:Receptors, Estrogen