TABLE I.

List of estimated model parameters (n = 3).

Ground matrix	(Perymysial) collagen fibers
$k^g$ (kPa)		Recruitment			Transmural variation
	$k^c$ (MPa)	$E_{lb}$	${\mu }_r$	${\sigma }_r$	$E_{ub}^m$	$k_z^c$	$z^c$
10	7.02 ± 0.3	0.015 ± 0.006	0.067 ± 0.01	0.0027 ± 0.002	0.072 ± 0.009	2.14 ± 0.9	54.15 ± 8.9

Myofibers		Myo-collagen fiber interaction
			Transmural variation
$k_1^m$ (kPa)	$k_2^m$	$k_2^{mc}$	$k_{1m}^{mc}$ (kPa)	$k_z^{mc}$	$z^{mc}$
58.07 ± 1.6	1.38 ± 1.7	8.42 ± 2.1	0.51 ± 0.3	5.11 ± 3.4	55.5 ± 9.4