Disease Progression and Changes in Physical Activity in Patients with Chronic Obstructive Pulmonary Disease

Little is known about the role of physical activity in the course of chronic obstructive pulmonary disease (COPD).To assess changes in physical activity in COPD in relation to severity stages and changes in other disease components, and to evaluate the longitudinal association between sustained physical inactivity and disease progression.In this prospective cohort study, we measured physical activity (multisensory armband), airflow obstruction...