Patients must be ambulatory and have an ECOG Performance Score of 0 or 1; Ambulatory and ?18 years of age. Ambulatory with an ECOG 0-1 Patients must be or have been ambulatory within a week prior to treatment Ambulatory with ECOG performance status of 0 or 1 Patient has Karnofsky score > 50 (ambulatory & capable of self-care) Are ambulatory Non-ambulatory Self ambulatory and without use of assistive walking devices Is not self ambulatory and relies on the use of assistive walking devices Ambulatory or able to engage in walking for at least 45 minutes per intervention visit Non-ambulatory Ambulatory or able to engage in walking for at least 15 minutes Non-ambulatory Ambulatory Ambulatory and able to walk with or without walking aid Non-ambulatory patients Ambulatory without assistive devices individuals who are non-ambulatory Non-ambulatory Ambulatory and able to walk with or without walking aid Ambulatory and able to walk with or without walking aid Ambulatory Post Acute Care (APC) score between 53 and 66 ambulatory, Ambulatory and possessing all four limbs