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Fig. 4 | Respiratory Research

Fig. 4

From: Diaphragmatic excursion is correlated with the improvement in exercise tolerance after pulmonary rehabilitation in patients with chronic obstructive pulmonary disease

Fig. 4

Receiver operating characteristic (ROC) curve for baseline DEmax in relation to the response to pulmonary rehabilitation. ROC curve estimates the ability of DEmax to predict a clinically important improvement in 6MWD (> 30 m) after pulmonary rehabilitation (AUC = 0.915, sensitivity = 83% and specificity = 95% at a cut-off point of 44.9 mm of DEmax). AUC area under the curve, 6MWD 6-min walk distance, DEmax maximum diaphragmatic excursion

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