Effects of Physical Activity and Dietary Change in Minority Breast Cancer Survivors

Inclusion Criteria: * 21-70 yrs * Stage 0-IIIa breast cancer * No evidence of recurrent/metastatic disease * Hispanic or African descent (African-American or Caribbean) * BMI \> 25kg/m2 * Sedentary * Completed surgery, chemotherapy, and radiation therapy ≥ 6 months * Blood pressure \< 140/90 * HgbA1C \< 8 * LDL cholesterol \< 150 * No uncontrolled comorbidities * VO2 max normal EKG changes * Non-smoker Exclusion Criteria: * Evidence of recurrent or metastatic breast cancer * Uncontrolled co-morbid illness including, but not limited to, type I diabetes mellitus, type II diabetes mellitus, hypertension, symptomatic congestive heart failure, unstable angina pectoris, claudication, cardiac arrhythmia; active pulmonary disease; hypercholesterolemia, neurological condition, ischemic heart disease, cardiac disease, kidney disease, respiration problems, asthma, shortness of breath, physical limitations, abnormal thyroid function, active malignancy, except for squamous or basal cell carcinoma of the skin; receiving active chemotherapy or radiotherapy; or psychiatric illness/social situations that would limit compliance with study requirements * Currently taking Herceptin therapy, or abnormal echo or MUGA post-Herceptin therapy * Active tobacco use * Currently active in an exercise and/or dietary change weight loss program * If a participant develops a breast cancer recurrence or metastasis during the 12-month study period, her participation in the study will be terminated.