A multi-factorial analysis of bone morphology and fracture strength of rat femur in response to ovariectomy

Table 4 Three-point bending test

Mechanical analysis of rat femur.
Parameter	[unit]	Control		OVX		t test
Parameter	[unit]	Mean	± SD	Mean	± SD	P
Force-displacement plot
Breaking force	[N]	102.917	6.379	112.865	4.815	0.013	*
Breaking displacement	[mm]	0.426	0.035	0.482	0.023	0.020	*
Breaking time	[sec]	25.540	2.088	28.650	1.381	0.026	*
Stiffness	[N/m²]	302.062	30.749	299.899	35.000	0.912
Stress-strain graph
Fracture strength	[MPa]	16.799	1.041	18.423	0.786	0.013	*
Young’s modulus	[MPa]	987.215	99.849	1031.412	45.857	0.357
Ductility	[%]	0.005	0.002	0.006	0.004	0.476
Resilience mod	[%]	0.142	0.012	0.154	0.029	0.369

ISSN: 1749-799X