Breast cancer is the most common cancer in women. Weight gain in adulthood, overweight or obesity, physical inactivity and alcohol consumption are risk factors commonly associated with risk of breast cancer (mainly for post-menopausal for overweight and obesity). Reduced physical activity is one factor likely to weight gain in women after adjuvant chemotherapy for localized breast cancer. Furthermore, physical activity appropriately could improve many prognostic factors and survival of women after breast cancer. Adapted Physical Activity (APA) could improve fitness, quality of life, body image, treatment compliance and reduce fatigue.