Back ground
Exercise training with in the context of pulmonary rehabilitation improves outcome s of exercise capacity, dyspnea and health-related
quality of life in individuals with chronic obstructive pulmonary disease (COPD). Supple mental oxygen in comparison to placebo
increases exercise capacity in patients performing single -assessment exercise tests. Th e addition of supple mental oxygen during exercise
training may enable individual s with COPD tolerate higher level s of activity with less exertional symptoms, ultimately improving
quality of life .