Leptin Deficiency and Its Effects on Tibial and Vertebral Bone Mechanical Properties in Mature Genetically Lean and Obese JCR:LA-Corpulent Rats

Table 6

𝐿₆ material properties.

	Lean	Obese	𝑛
Apparent elastic modulus (MPa)	115.83 ± 26.17	107.63 ± 8.65	71
Stress at proportional limit (MPa)	9.42 ± 2.37	7.25 ± 1.53	13
Strain at proportional limit (%)	13.47 ± 2.54^*	9.07 ± 2.09
Stress at maximal load (MPa)	10.68 ± 2.11	9.47 ± 1.40	34
Strain at maximal load (%)	19.01 ± 5.04	21.00 ± 7.94	167
Mineral ash fraction (%)	63.43 ± 0.85	63.44 ± 1.14	155412

Values are means ± SD. ^*denotes statistically significant (𝑃≤0.05). 𝑛 denotes the sample size per group needed for the recorded differences to become statistically significant based on a power of 0.8.