Figure 4 - Positive relationship between oxygen uptake at maximum cycle ergometry (VO2max, ml/min) and the carbon monoxide diffusing capacity (DLCOSB). The slope of this relationship was similar in both sexes (35.36) but with different intercepts (979 in males and 455 in females, SEE = 387, P<0.01). The regression line is presented with the 95% confidence limit (CL). Rsq is the coefficient of determination.