Controlled physical activity trials in cancer survivors
A systematic review and meta-analysis
Samenvatting
Background: Approximately 9.8 million cancer survivors are alive in the United States today. Enthusiasm for prescribing physical activity for cancer survivors depends on evidence regarding whether physical activity during or after completion of treatment results in improved outcomes such as cardiorespiratory fitness, fatigue, symptoms, quality of life, mental health, or change in body size.
Methods: A systematic qualitative and quantitative review of the English language scientific literature identified controlled trials of physical activity interventions in cancer survivors during and after treatment. Data from 32 studies were abstracted, weighted mean effect sizes (WMES) were calculated from the 22 high-quality studies, and a systematic level of evidence criteria was applied to evaluate 25 outcomes.
Conclusions: Physical activity improves cardiorespiratory fitness during and after cancer treatment, symptoms and physiologic effects during treatment, and vigor posttreatment. Additional physical activity intervention studies are needed to more firmly establish the range and magnitude of positive effects of physical activity among cancer survivors.
Literatuurverwijzing: Schmitz, K.H., Holtzman, J., Courneya, K.S., Masse, L.C., Duval, S., & Kane, R.L. (2005). Controlled physical activity trials in cancer survivors: a systematic review and meta-analysis. Cancer Epidemiology, Biomarkers & Prevention 14