Fig. 1From: Influence of resting lung diffusion on exercise capacity in patients with COPDRelationship of Single Breath DLCO (SBDLCO) to Intra Breath DLCO (IBDLCO, n = 32). The IBDLCO was on average lower than the SBDLCO (p < 0.001) particularly in patients with values that were more significantly reduced relative to predictive values (<65% of predicted)Back to article page