Table 5:

Parameters for the four-fiber family constitutive model describing the response of human TAs in 7 age groups at the 75^th percentile. Coefficient of determination R² ≥ 0.99 for all age groups.

Four-fiber family model
Age group (years)	Cgr, kPa	${\mathit{C}}_{\mathbf{1}}^{\mathbf{1}}={\mathit{C}}_{\mathbf{1}}^{\mathbf{2}},\mathit{k}\mathit{P}\mathit{a}$	${\mathit{C}}_{\mathbf{2}}^{\mathbf{1}}={\mathit{C}}_{\mathbf{2}}^{\mathbf{2}}$	${\mathit{C}}_{\mathbf{1}}^{\mathbf{3}},\mathit{k}\mathit{P}\mathit{a}$	${\mathit{C}}_{\mathbf{2}}^{\mathbf{3}}$	${\mathit{C}}_{\mathbf{1}}^{\mathbf{4}},\mathit{k}\mathit{P}\mathit{a}$	${\mathit{C}}_{\mathbf{2}}^{\mathbf{4}}$	${\mathit{\gamma }}^{°}$
15.3 (13–20)	13.82	10.31	0.00	21.90	0.01	13.90	0.00	43.95
24.4 (21–30)	10.45	14.69	0.59	29.16	0.00	15.60	0.00	39.85
36.0 (31–40)	9.09	12.10	0.77	20.56	0.00	16.83	0.13	40.23
46.5 (41–50)	14.40	6.66	2.91	20.17	0.29	9.98	1.74	35.42
54.9 (51–60)	15.99	6.17	3.77	17.52	0.50	7.75	3.57	39.44
66.5 (61–70)	11.33	8.05	4.67	24.53	0.43	17.08	2.66	41.37
73.2 (71–78)	5.04	7.55	8.44	30.53	0.15	28.06	3.80	40.52