The effect of Pulmonary Rehabilitation on the value of inspiratory capacity-to-total lung capacity (IC/TLC) ratio in patients with COPD

OBJECTIVES In patients with chronic obstructive pulmonary disease (COPD), the inspiratory capacity–to–total lung capacity (IC/TLC) ratio has been found to be correlated with mortality and a reduced exercise capacity. Pulmonary rehabilitation (PR) is known to improve the exercise capacity and respiratory functions of patients with COPD. Our study aims to examine the impact of PR on the IC/TLC ratio in patients with COPD.