Fig. 4From: Quantification and physiological significance of the rightward shift of the V-slope during incremental cardiopulmonary exercise testingComparison of V-slopes during ramp (a: left, ramp) and 6-min steady-state exercise (b: right, step) performed by the same subject. During ramp exercise, the V-slope maintains its RtShift up to VAT; however, during steady-state exercise, it reverts back to the R = 1 lineBack to article page