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End-expiratory lung volume (EELV) and end-inspiratory lung volume (EILV) measurements were significantly greater (p<0.05) throughout exercise in GOLD 1 and 2 compared with controls (p-values based on two-sample t-test with unequal variance). Data are shown as means. TLC, total lung capacity; IRV, inspiratory reserve volume; VT, tidal volume.
