Inclusion Criteria:

1. diagnosis of NYHA I, II or III heart failure (as identified by any of the following physical findings of heart failure (jugular venous distension, crackles, edema, S3); pulmonary edema on chest x-ray; BNP > 100 pg/ml; or at least two of the following symptoms: paroxysmal nocturnal dyspnea, shortness of breath, swelling, fatigue;
2. previous chemotherapy that contributed to the development of heart failure (i.e., heart failure develops or worsens after receiving chemotherapy, with no other obvious explanation);
3. oriented to person, place, and time;
4. living in the Houston area (Harris county or a contiguous county), or planning to stay in the area for at least the next 16 weeks.
5. 18 years of age or older.
6. diagnosis of cancer
7. have completed treatment, or are on long-term adjuvant or maintenance chemotherapy only

Exclusion Criteria:

1. remain in NYHA class IV heart failure despite therapy;
2. have health problems or current treatments that would make exercise unsafe, as determined by the cardiologist;
3. cannot provide informed consent;
4. life expectancy is less than 6 months.