Figure 2. APD and peak CaT during development of alternans after a change in CL.
(A) APD (top) and peak Ca transient (bottom) vs beat number n. (B) The amplitude of APD (Δa n) and Ca transient (Δc n) alternans amplitude vs. beat number for five independent simulations with identical parameters and initial conditions. Differences between each simulation run are due only to the Ca cycling fluctuations present. (C) The amplitude (Δc n) of Ca transient alternans vs beat number n at the early stages of pacing.