Figure 8.

Effects of increasing the values of ${\text{I}}_{\mathrm{\text{NCX}}}^{max}$ in models #6 and #15, which resulted in the enhanced Ca²⁺ extrusion and a faster CaT_c decay. In model #6 the transition between the biphasic and smooth CaT profile occurredat values of ${\text{I}}_{\mathrm{\text{NCX}}}^{max}$ between 5.4 and 6.0 nS/pF, while in model #15 the transition occurred at values between 16.6 and 18.3 nS/pF.