TABLE 6.

State variable initial conditions for simulations of paced APs and BP oscillations

State variables	APs during 1 Hz pacing*	BP activity at gK1 = 0.15†	BP activity at gK1 = 0†
V	−84.86	−61.91	−47.88
dL	4.941 × 10−6	1.862 × 10−4	1.714 × 10−3
fL	0.8873	0.5298	0.3868
pa	9.095 × 10−3	0.3382	0.5371
n	1.974 × 10−2	0.1350	0.2321
q	0.9997	0.9890	0.8999
h	0.9925	0.2811	1.640 × 10−2
[Ca2+]i	1.691 × 10−4	3.502 × 10−4	4.889 × 10−4
[Ca2+]rel	2.683	5.207	6.378
[Ca2+]up	2.843	5.349	6.473
[Na+]i	9.224	6.548	6.418
[K+]i	136.4	140	140
dR	4.941 × 10−6	1.866 × 10−4	1.718 × 10−3
fR	0.9998	0.9954	0.9645
fTC	0.2529	0.4125	0.4949

^*Initial conditions for simulations of paced APs in the standard system (g_K1 = 1), obtained at 30 min during 1 Hz pacing, i.e., just before the 1801st stimulus, starting from a resting state.

^†Initial conditions for simulations of BP activity in the I_K1-reduced systems, obtained at MDP after 15 min calculations starting from an EP.