The distribution of the extent of change in inspiratory capacity (IC) during exercise is shown in moderate-to-severe chronic obstructive pulmonary disease.

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Presentation transcript:

The distribution of the extent of change in inspiratory capacity (IC) during exercise is shown in moderate-to-severe chronic obstructive pulmonary disease (COPD; n = 534). The distribution of the extent of change in inspiratory capacity (IC) during exercise is shown in moderate-to-severe chronic obstructive pulmonary disease (COPD; n = 534). A reduction (negative change, i.e. from the dotted zero line to −2.0) in IC reflects dynamic hyperinflation (DH) during exercise. Each bar width corresponds to a change in IC range of 0.10 L. The majority of patients with COPD experienced significant DH during exercise. Graph represents cumulative data taken from references [17, 35, 36]. Reproduced from [41], with permission from the publisher. D. E. O'Donnell, and P. Laveneziana Eur Respir Rev 2006;15:61-67 ©2006 by European Respiratory Society