Table 1 Summary of age-dependent elastin fiber microstructural and mechanical properties. The table presents quantitative metrics of elastin fiber networks across different age groups, including average fiber diameter, total fiber count, elastin volume fraction, number of fiber clusters, maximum cluster size (number of fibers in the largest connected component), and the proportion of vertically oriented fibers.
Age (years) | Mean Fiber Diameter (\(\mu\)m) | Fiber Count | Elastin Volume Fraction (%) | Number of Fiber Clusters | Maximum Cluster Size | Vertical Fiber Proportion (%) | Normalized Skin Firmness |
|---|---|---|---|---|---|---|---|
38 | 3.86 | 2437 | 4.23 | 5 | 2415 | 25.44 | 1.0 |
39 | 3.54 | 1060 | 2.34 | 17 | 795 | 28.30 | 0.155 |
43 | 3.68 | 2183 | 5.26 | 11 | 2127 | 18.51 | 0.837 |
49 | 3.59 | 2056 | 3.26 | 28 | 1642 | 32.48 | 0.533 |
58 | 3.45 | 2081 | 4.18 | 32 | 1883 | 26.86 | 0.301 |
59 | 3.52 | 1713 | 3.63 | 19 | 1070 | 16.40 | 0.318 |
67 | 3.35 | 804 | 2.28 | 47 | 248 | 6.22 | 0.0256 |
70 | 3.37 | 1352 | 2.25 | 40 | 626 | 17.31 | 0.044 |
78 | 3.36 | 1070 | 2.32 | 51 | 303 | 9.63 | 0.0 |
