Figure 5. Effect of control and post-MI action potentials on Ca²⁺ release at low and high SR Ca²⁺ loads.

Relative Ca²⁺ release triggered by control and post-MI APs at low (control AP train) and high (post-MI AP train) SR loads. Data are normalized to the amplitude of Δ[Ca²⁺]_i triggered by the control AP at a low SR load.