Fig. 3From: Diaphragmatic excursion is correlated with the improvement in exercise tolerance after pulmonary rehabilitation in patients with chronic obstructive pulmonary diseaseRelationship between DEmax and the changes in 6MWD after pulmonary rehabilitation. Changes in 6MWD were significantly positively correlated with DEmax (r = 0.72; p < 0.001). DEmax maximum diaphragmatic excursion, 6MWD 6-min walk distanceBack to article page