Breast Cancer RehabilitationBreast Cancer Patients: A Breast Cancer Rehabilitation and Exercise Laboratory

Inclusion Criteria:

1. Consent to participate in study
2. Women aged 18 and older
3. Stage 0 to III breast cancer prior to any treatment and at time of diagnosis
4. Requires treatment that includes chemotherapy, radiation therapy or both chemotherapy and radiation therapy
5. Adequate fitness to participate in a physical activity as assessed by the investigator
6. Willing and able to participate in a prescribed exercise program

Exclusion Criteria:

1. Metastatic breast cancer (Stage IV)
2. Initiation of treatment regimen prior to enrollment
3. Treatment for breast cancer not requiring chemotherapy or radiation therapy
4. Patients who are pregnant (negative urine pregnancy test required at baseline to determine eligibility in women of child bearing potential).
5. Currently lactating
6. Do not read, understand, or speak English

Eligible participants will not be included if they have:

1. known cardiac disease,
2. uncontrolled hypertension,
3. uncontrolled thyroid disease,
4. diabetes mellitus,
5. mental illness,
6. infection,
7. immune or endocrine abnormality,
8. body weight reduction I10% in past 6 months, and
9. positive exercise stress test.
10. Major surgery within last 6 months that requires exercise restriction