Table 3.

Constitutive parameters describing aging of the femoropopliteal arteries with and without diabetes (DM)

	Aging of All specimens	Aging Without DM	Aging With DM
t, years	11–80	41–80	41–80
Elastic constitutive parameters
Cgr, kPa	10.59	13.27	12.95
$C_1^{el}$, kPa	21.05	17.36	17.46
$C_2^{el}$	0.21	2.18	1.81
$C_1^{\mathit{smc}}$, kPa	2.94	6.64	24.33
$C_2^{\mathit{smc}}$	2.20	7.17	14.79
$C_1^{\mathit{col}}$, kPa	3.83	2.02	5.15
$C_2^{\mathit{col}}$	2.08	9.48	15.94
γ, °	60.95	48.34	52.81
Stiffening functions
Dgr	1.18	0.0004e0.1042t + 0.9073	1.56
Del	0.0669e0.0460t + 0.8225	0.0191e0.050t + 0.8213	0.0541e0.0458t + 0.5222
Dsmc	1.07	1	1
Dcol	0.6283e0.0203t	0.1412e0.0322t + 0.3221	0.0056e0.0615t + 0.8855
Fit quality
$R_z^2$	0.95	0.97	0.92
$R_{\theta }^2$	0.92	0.93	0.91