Feasibility of Home-based Exercise Program for Adults With Cystic Fibrosis

Study participants will be randomized to a 12 week exercise intervention versus usual care. Participants will have Xenon MRI at study start and completion to evaluate impact of exercise on lung function. The exercise intervention for all participants will be delivered by two pulmonary rehabilitation coaches (PR-coach) including a registered respiratory therapist and clinical registered dietitian who've been trained in exercise training as recommended by the AACVPR and American College of Sports Medicine (ACSM). Each TR participant will be assigned a PR-coach, and receive one weekly exercise consulting session during the 12-week intervention.