A Home-Based Exercise Intervention (CAREFit-BMT) in Improving Heart Function Among Patients With High Risk Acute Myeloid Leukemia Undergoing Stem Cell Transplant

Inclusion Criteria: * Age 18 years or older * Ability to understand and willingness to sign a written informed consent document * New diagnosis of acute myeloid leukemia at Fred Hutch * High-risk patients as defined by one, or more, of the following criteria: * Age 65 years or older and/or * Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) score ≥ 3 (for patients 20 years old or older) and/or * CARE-BMT score ≥ 5 * Note: HCT-CI and CARE-BMT scores will be measured at pre-screening by study staff * Able to exercise at low to moderate intensity, as evaluated by study staff * Access to a mobile smart phone * Able to read and write in English Exclusion Criteria: * Orthopedic, neurologic, or other problems that prevent safe ambulation and protocol adherence. Information on prior falls and other recent orthopedic or neurologic problems will be used to make judgment about protocol eligibility * Recurrence of AML or diagnosis of other invasive cancer * Severe anemia (hemoglobin \< 7 gm/dl) * History of severe aortic stenosis * New York Heart Association (NYHA) class IV heart failure * Severe pain with basic movement * Pregnant persons * Unable to give consent