Some blood, bone marrow, and lymphatic (hematologic) cancers such as Hodgkin/Non-Hodgkin lymphomas, chronic lymphocytic leukemia, and multiple myeloma, are over-represented in Veterans due to exposures including Agent Orange and an increased percentage of patients of African American ethnicity. Hematologic transplantation (HCT) is a common treatment for these cancers, but often leads to deconditioning, fatigue, muscle atrophy, and poor quality of life, which are associated with complications such as hospitalization and infection. Despite the significance of these symptoms, there are no approved treatments to prevent/reverse these long-term effects. The cancer itself, side effects of chemotherapy, and sedentary behavior, contribute to these effects. Although exercise before and after HCT has helped reduce these effects, it is inconsistently recommended to patients and most remain sedentary through and after treatment. The investigators are testing an alternative exercise strategy, neuromuscular electrical stimulation, to maintain physical function quality of life after HCT.