Fig. 2: Simulation results of APD and CV restitution curves and rate adaption curve of QT interval.

A APD restitution curves obtained from the S1–S2 protocol (Ai) and the dynamic protocol (Aii), where APDs were plotted against PCL and DI, respectively. B CV restitution curves obtained from the S1–S2 protocol (Bi) and the dynamic protocol (Bii). C Rate adaption curve of QT interval.