Activity Levels in Bone Marrow Transplant Patients

This study is measuring how physically active patients are before, during, and after a bone marrow transplant (also called a stem cell transplant). The goal is to understand how activity levels change during this intensive treatment and what effect that has on recovery. **You may be eligible if...** - You are a patient scheduled to receive a bone marrow (stem cell) transplant **You may NOT be eligible if...** - You are not scheduled to receive a bone marrow transplant Talk to your doctor to see if this trial is right for you.