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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Bone. 2021 Feb 19;146:115889. doi: 10.1016/j.bone.2021.115889

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