title: Physical activity and cancer.
abstract: Epidemiological evidence continues to accumulate on the benefits of physical activity in relation to cancer risk, progression and mortality. Recent studies suggest that sedentary behavior may independently affect cancer risk; they also focus on factors that may explain associations with physical activity, including cancer risk factors and whether associations exist for precancerous lesions. Despite enormous efforts to examine associations between physical activity and cancer, the literature is hindered by inconsistent assessment of physical activity across studies, and incomplete consideration of variation of effects across population subgroups (for example, defined by body size, age or sex) or tumors subgroups (organ location, receptor status, or molecular subtype), and whether other factors explain study results. Clearly, public health recommendations for appropriate changes in activity levels are needed; unfortunately, at this time, we have no exact physical activity prescription to give to the public.
authors.affiliation: Division of Cancer Etiology, Department of Population Sciences, Beckman Research Institute, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA.
authors.forename: Jessica
authors.initials: J
authors.lastname: Clague
authors.forename: Leslie
authors.initials: L
authors.lastname: Bernstein
mesh_terms: D004734:Energy Metabolism / Q000502:physiology; D005081:Exercise Therapy; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology / Q000628:therapy; D010809:Physical Fitness; D011634:Public Health; D012307:Risk Factors; D016019:Survival Analysis