Fig. 7.

With revised constraints: ${\mathit{\theta }}_0\mathit{ϵ}\left[0^{\circ },{45}^{\circ }\right]$ and $\mathit{\psi }\mathit{ϵ}\left[0^{\circ },{10}^{\circ }\right]$, the results of post hoc tests on SHR model’s $\mathit{\varphi }E$ (Fibril Young’s modulus). a Effect of age on the uninjured subgroups. Age-dependent effects of injury on fibril modulus within: b the mature group, c the aging group, and d the aged group. Fibril modulus reduced with age (a), and with injury except in the aging group (c), and in the aged group (d), which exhibited neither statistical significance nor trend with injury. Data are presented as mean ± standard error. Statistical significance is denoted by: *** ($p<0.001$), ** ($p<0.01$), and * ($p<0.05$) and significant trend is denoted by # ($p<0.1$)