q_0_Ki c_Ki W_i q_0_Ko c_Ko W_o q_0_Nai c_Nai W_i q_0_Nao c_Nao W_o q_0_ATP c_ATP W_i q_0_ADP c_ADP W_i q_0_Pi c_Pi W_i q_0_H 10 pH 1000 W_i

T_cardiac t T_0 t T_0 t1 t0 V_depo V_rest dV_inc t2 t1 APD t3 t2 V_rest V_depo dV_dec dV dV_inc T_cardiac t0 T_cardiac t1 0 T_cardiac t1 T_cardiac t2 dV_dec T_cardiac t2 T_cardiac t3 0 t u_0_Vm dV