Table 5.
Mechanical properties of right (non-loaded) and left (loaded) tibiae.
| Structural Mechanical Properties from 4-point bending | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Thermoneutral | RM 3 Way ANOVA | |||||||||||||
| Non-loaded | Loaded | Non-loaded | Loaded | Temperature | Loading | Treatment | Temperature x Loading | Temperature x Treatment | Loading x Treatment | Temperature x Loading x Treatment | |||||
| Control | RAL | Control | RAL | Control | RAL | Control | RAL | ||||||||
| Yield Force (N) | 15.5 ± 2.6 | 15.2 ± 1.1 | 15.3 ± 3.5 | 16.1 ± 3.8 | 14.3 ± 2.1 | 14.3 ± 2.1 | 14.3 ± 4.7 | 17.5 ± 5 | 0.8146 | 0.2374 | 0.1086 | 0.7089 | 0.1391 | 0.3136 | 0.2580 |
| Ultimate Force (N) | 16.8 ± 2.2 | 16.9 ± 1.8 | 19.1 ± 2 | 19.5 ± 1.4 | 15.9 ± 2 | 17.9 ± 1.5 | 18.9 ± 2.4 | 21.5 ± 4.1 | 0.2873 | <0.0001 | 0.0092 | 0.6309 | 0.7800 | 0.1391 | 0.3136 |
| Failure Force (N) | 9.6 ± 4.3 | 11 ± 3.8 | 14.3 ± 3.5 | 12.5 ± 3.2 | 8.9 ± 3.6 | 10.5 ± 3.2 | 13.5 ± 4.7 | 16.8 ± 6.4 | 0.6454 | <0.0001 | 0.2081 | 0.2637 | 0.1076 | 0.9538 | 0.1134 |
| Ultimate Displacement (μm) | 310.5 ± 53.3 | 309.5 ± 24.9 | 386 ± 64.4 | 350.7 ± 59.3 | 315.7 ± 22.1 | 326.8 ± 30.2 | 382.3 ± 62.6 | 376 ± 130.4 | 0.2352 | <0.0001 | 0.7738 | 0.8310 | 0.7527 | 0.2484 | 0.6022 |
| Displacement to Yield (μm) | 261.4 ± 71.5 | 241.7 ± 27.7 | 242.2 ± 47.4 | 237.4 ± 49.8 | 246.4 ± 33 | 239.1 ± 20.1 | 224.2 ± 71.9 | 217.8 ± 25.6 | 0.2256 | 0.4245 | 0.3548 | 0.1786 | 0.9043 | 0.5484 | 0.6713 |
| Postyield Displacement (μm) | 490.8 ± 250.9 | 515 ± 205.9 | 506.8 ± 286.6 | 509.7 ± 100.3 | 574.8 ± 297.9 | 497.5 ± 170 | 513.4 ± 120.4 | 498.7 ± 108.4 | 0.3671 | 0.3789 | 0.7537 | 0.9567 | 0.2131 | 0.4065 | 0.9806 |
| Total Displacement (μm) | 752.2 ± 242.4 | 756.7 ± 211.5 | 749 ± 267.5 | 747.1 ± 91.3 | 821.2 ± 304.3 | 736.6 ± 163 | 737.6 ± 127.8 | 716.5 ± 106.2 | 0.4975 | 0.3098 | 0.8971 | 0.8134 | 0.1900 | 0.5002 | 0.9096 |
| Stiffness (N/mm) | 67.5 ± 10.8 | 71.4 ± 12.3 | 70.2 ± 9.9 | 75.7 ± 10.7 | 65.6 ± 10.9 | 73.1 ± 7.3 | 73 ± 17.9 | 91.7 ± 29.3 | 0.2950 | 0.0476 | 0.0054 | 0.1711 | 0.0734 | 0.0631 | 0.2978 |
| Work to Yield (mJ) | 2.2 ± 1 | 1.9 ± 0.3 | 2 ± 0.8 | 2.1 ± 0.9 | 1.9 ± 0.5 | 2 ± 0.4 | 1.8 ± 0.9 | 2 ± 0.6 | 0.5247 | 0.4947 | 0.7883 | 0.3055 | 0.5615 | 0.9155 | 0.6343 |
| Postyield Work (mJ) | 5.4 ± 2.3 | 6.7 ± 2.9 | 7.9 ± 4.5 | 7.6 ± 1.4 | 6.1 ± 2.7 | 6.7 ± 2 | 7.7 ± 2.5 | 9.1 ± 3.4 | 0.1129 | 0.0241 | 0.0131 | 0.5530 | 0.9781 | 0.4868 | 0.4168 |
| Total Work (mJ) | 7.6 ± 2.2 | 8.6 ± 2.8 | 9.9 ± 4.1 | 9.7 ± 1.3 | 8 ± 0 | 8.7 ± 2 | 9.5 ± 2.3 | 11.1 ± 3.5 | 0.1323 | 0.0186 | 0.0068 | 0.7360 | 0.8834 | 0.4816 | 0.3661 |
| Estimated Tissue-Level Mechanical Properties from 4-point bending | |||||||||||||||
| Standard | Thermonuetral | RM 3 Way ANOVA | |||||||||||||
| Non-loaded | Loaded | Non-loaded | Loaded | Temperature | Loading | Treatment | Temperature x Loading | Temperature x Treatment | Loading x Treatment | Temperature x Loading x Treatment | |||||
| Control | RAL | Control | RAL | Control | RAL | Control | RAL | ||||||||
| Yield Stress (MPa) | 182.5 ± 23.9 | 174.8 ± 13 | 164.2 ± 36 | 167.7 ± 38.3 | 169.5 ± 18.7 | 176.9 ± 23 | 159 ± 54.8 | 187.2 ± 48.3 | 0.8880 | 0.4435 | 0.2805 | 0.8931 | 0.1219 | 0.3149 | 0.2542 |
| Ultimate Stress (MPa) | 199.1 ± 19.2 | 194.3 ± 18.7 | 206 ± 21.1 | 203.9 ± 17.3 | 188.6 ± 14.2 | 202.5 ± 14.9 | 209.1 ± 33.4 | 230.1 ± 41.2 | 0.1577 | 0.0040 | 0.0420 | 0.1963 | 0.0369 | 0.1888 | 0.4190 |
| Failure Stress (MPa) | 113.4 ± 48.6 | 128.2 ± 47.1 | 153.6 ± 36.7 | 131.5 ± 35.8 | 104.9 ± 36.6 | 118.4 ± 33.6 | 149 ± 53.3 | 179.8 ± 66.3 | 0.6870 | 0.0016 | 0.2987 | 0.1727 | 0.1084 | 0.9337 | 0.1240 |
| Ultimate Strain (me) | 25 ± 4.2 | 25 ± 1.7 | 33 ± 5.5 | 29.7 ± 4.8 | 25.2 ± 2.5 | 26.4 ± 2.4 | 33 ± 6 | 32.3 ± 10.7 | 0.1782 | <0.0001 | 0.6817 | 0.9632 | 0.7153 | 0.2115 | 0.6372 |
| Strain to Yield (me) | 21 ± 5.6 | 19.5 ± 1.9 | 20.7 ± 4 | 20.2 ± 4.6 | 19.6 ± 0 | 19.3 ± 1.7 | 19.3 ± 6 | 18.8 ± 2.5 | 0.2632 | 0.3884 | 0.3821 | 0.2338 | 0.9885 | 0.4926 | 0.6921 |
| Total Strain (me) | 60.5 ± 19.5 | 61.1 ± 17.3 | 63.8 ± 22.4 | 63.4 ± 8.4 | 65.6 ± 25.2 | 59.3 ± 12.7 | 63.4 ± 9.6 | 61.9 ± 9.5 | 0.4144 | 0.9729 | 0.8663 | 0.9224 | 0.1830 | 0.5205 | 0.9031 |
| Modulus (GPa) | 9.9 ± 1.3 | 10.2 ± 1.4 | 8.8 ± 1.2 | 9.3 ± 1.2 | 9.7 ± 0.8 | 10.3 ± 0.9 | 9.4 ± 2.6 | 11.3 ± 3.3 | 0.2525 | 0.0894 | 0.0059 | 0.0961 | 0.0234 | 0.0412 | 0.3124 |
| Resilience (MPa) | 2.1 ± 0.9 | 1.8 ± 0.2 | 1.9 ± 0.7 | 1.9 ± 0.8 | 1.8 ± 0.4 | 1.8 ± 0.4 | 1.7 ± 0.9 | 1.9 ± 0.5 | 0.6434 | 0.6345 | 0.9011 | 0.5419 | 0.5535 | 0.9409 | 0.6230 |
| Toughness (MPa) | 7.3 ± 2.1 | 8 ± 2.7 | 9.1 ± 3.8 | 8.6 ± 1.5 | 7.7 ± 2.9 | 7.9 ± 1.8 | 9.1 ± 2.4 | 10.3 ± 3.3 | 0.1043 | 0.0426 | 0.0393 | 0.4952 | 0.9069 | 0.4574 | 0.3247 |