Figure 1From: Determinants of exercise capacity in cystic fibrosis patients with mild-to-moderate lung disease Correlation between VO 2 peak and FEV 1 , FVC, VE/CO 2 peak, BR, P(A-a)O 2 peak, and V D /V T peak in CF patients. VO2 peak, FEV1, FVC, and BR are expressed as percentage of predicted values. P(A-a)O2 peak is expressed as mm Hg.Back to article page