TABLE 2.

Parameters of the linear model (Eq. 5) for curve-fitting the empirical stress–strain response of the lamina propria and vocal fold mucosa for strains between ε = 0 and linear strain limit (ε₁) in %

Specimen	a	b	R 2	ε 1
Mule deer
Male
Male MD, N = 6, partial lamina propria	38.5 ± 8.6	0.04 ± 0.2	0.98 ± 0.01	16.3 ± 6.2
Male MD, N = 5, complete lamina propria	81.5 ± 16.1	0.3 ± 0.3	0.99 ± 0.002	8.1 ± 3.4
Male MD, N = 6, epithelium	64.5 ± 31.9	−0.12 ± 0.5	0.98 ± 0.01	31.9 ± 13.2
Female
Female MD, N = 6, partial lamina propria	37.2 ± 10.2	−0.005 ± 0.2	0.98 ± 0.007	23.2 ± 8.6
Female MD, N = 6, complete lamina propria	70.0 ± 30.2	0.5 ± 0.9	0.99 ± 0.002	8.6 ± 1.3
Female MD, N = 6, epithelium	67.3 ± 19.9	0.03 ± 0.4	0.93 ± 0.002	26.6 ± 6.5
Male × female
Males × females, complete lamina propria (N1 = 6; N2 = 6)	t = −0.23, P = 0.82	t = −0.38, P = 0.71		t = 1.76, P = 0.11
Males × females, partial lamina propria (N1 = 5; N2 = 6)	t = −0.76, P = 0.46	t = 0.49, P = 0.63		t = 0.34, P = 0.36
Males × females, epithelium (N1 = 6; N2 = 6)	t = 0.17, P = 0.86	t = 0.59, P = 0.56		t = −0.88, P = 0.39
Partial × complete lamina propria, (N1 = 12; N2 = 11) (males and females pooled)	t = 4.96, P < 0.001	t = 0.49, P = 0.63		t = −4.89, P < 0.001
Elk (from Riede and Titze, 2008)
Elk, partial lamina propria	45.7 ± 16.3	0.11 ± 0.12		12.0 ± 2.71
Elk, epithelium	77.8 ± 30.2	0.05 ± 0.5		22.5 ± 2.8
Elk × Mule deer
Elk × mule deer, partial lamina propria (N1 = 12; N2 = 12)	t = 1.45, P = 0.08	t = 1.35, P = 0.09		t = −3.4, P = 0.002
Elk × mule deer, epithelium (N1 = 10; N2 = 12)	t = 1.0, P = 0.33	t = 0.45, P = 0.65		t = −1.99, P = 0.06

R² is the regression coefficient and describes the quality of fit. In one set of tests the vocal fold length was reduced (partial), whereas in a second set the vocal fold length was not reduced (complete).