Table 4.

GOH model parameters (mean ± SE) obtained from the data fitting process with $\mathit{\xi }[0^{\circ },{90}^{\circ }]$

Group	$(1-\mathit{\varphi })\mathit{\mu }(\mathrm{kPa})$	$\mathit{\varphi }{c}_1^c(\mathrm{MPa})$	$c_2^c$	${}^{(\ast \mathrm{a},\ast \mathrm{i},\ast \mathrm{ai})}\mathit{\kappa }$	$\mathit{\xi }{(}^{\circ })$	$R^2$
Mature
Ctl	$0.51\pm 0.19$	$0.94\pm 0.94$	$347\pm 150$	$0.146\pm 0.025$	$11.5\pm 1.5$	$0.956\pm 0.004$
3 weeks	$0.58\pm 0.22$	$0.12\pm 0.05$	$353\pm 88$	$0.039\pm 0.009$	$18.7\pm 4.0$	$0.984\pm 0.001$
6 weeks	$0.46\pm 0.09$	$0.06\pm 0.05$	$426\pm 90$	$0.054\pm 0.010$	$20.8\pm 5.2$	$0.981\pm 0.002$
Aging
Ctl	$0.37\pm 0.12$	$0.13\pm 0.08$	$257\pm 70$	$0.036\pm 0.008$	$9.0\pm 2.0$	$0.971\pm 0.004$
3 weeks	$1.20\pm 0.48$	$1.94\pm 1.55$	$237\pm 63$	$0.052\pm 0.009$	$16.3\pm 4.2$	$0.974\pm 0.001$
6 weeks	$0.39\pm 0.08$	$0.13\pm 0.10$	$522\pm 103$	$0.070\pm 0.013$	$13.8\pm 3.4$	$0.975\pm 0.002$
Aged
Ctl	$1.39\pm 0.81$	$2.50\pm 1.39$	$188\pm 64$	$0.041\pm 0.008$	$24.6\pm 5.6$	$0.973\pm 0.003$
3 weeks	$0.53\pm 0.23$	$0.13\pm 0.07$	$364\pm 121$	$0.054\pm 0.012$	$17.7\pm 5.4$	$0.981\pm 0.003$
6 weeks	$0.32\pm 0.12$	$0.38\pm 0.24$	$227\pm 73$	$0.038\pm 0.006$	$13.6\pm 4.3$	$0.982\pm 0.003$

${}^{\ast \mathrm{a}}$Significance with age ($p<0.01$); ${}^{\ast \mathrm{i}}$significance with injury ($p<0.05$); ${}^{\ast \mathrm{ai}}$significant age–injury interaction ($p<0.001$)