This study will evaluate the feasibility of a 12-week exercise intervention on the cardiac function of survivors of childhood cancer treated with anthracyclines and known to have cardiomyopathy.
As a secondary objective, the study will document the effect of a 12-week exercise intervention on exercise tolerance, as determined by measurement of peak VO2 and peak exercise workload, shortening fraction, ejection fraction, and left ventricular wall thickness, and assess the impact of the intervention on neurocognitive functioning in survivors of childhood cancer treated with anthracyclines and known to have cardiomyopathy.