This is a prospective, randomized, single institution feasibility trial. The efficacy of an exercise intervention during chemotherapy for sedentary breast cancer patients will be tested. The investigators goal is to recruit 120 women and men. Assuming 20% attrition rate, 96 will be randomized to two arms, comparing patients assigned to a physical activity program plus general health education materials versus patients assigned to receive standard general health education materials only. Study measures will be obtained before intervention, at 24 weeks, and at the end of the intervention, approximately week 32.
