The primary objective of this study is to assess the feasibility of a multi-institutional study that collects cardiopulmonary exercise testing and 6 minute walk distance performance testing prior to a cycle of chemotherapy (or transplant), followed by collection of patient generated health data (wearable activity monitors and patient reported outcomes) for the subsequent month. In addition to demonstrating feasibility, the study looks to generate preliminary data that supports the capacity of physical performance testing and patient-generated health data to complement clinician-rated performance status in patients receiving chemotherapy.