Effects of treadmill with different intensities on bone quality and muscle properties in adult rats

Table 3 Microarchitecture parameters of trabecular bone in the distal femur evaluated by micro-CT, mean ± SD

Groups	BV/TV (%)	Tb.BMD (g/cm³)	Tb.Th (mm)	Tb.N (1/mm)	Tb.Sp (mm)	SMI
SED	44.70 ± 6.24	0.53 ± 0.06	0.14 ± 0.01	3.32 ± 0.57	0.38 ± 0.10	0.69 ± 0.41
EX12	53.12 ± 8.09^a,c,d	0.61 ± 0.07^a,c,d	0.16 ± 0.02^a,c,d	3.60 ± 0.40	0.30 ± 0.08	1.14 ± 0.73
EX16	45.89 ± 6.98	0.55 ± 0.06	0.14 ± 0.01	3.37 ± 0.50	0.30 ± 0.07^a	0.60 ± 0.39^b
EX20	42.09 ± 7.67	0.51 ± 0.06	0.12 ± 0.02^a,c	3.42 ± 0.52	0.32 ± 0.10	0.58 ± 0.50

Tb.BMD trabecular bone mineral density, BV/TV bone volume fraction, Tb.Th trabecular thickness, Tb.N trabecular number, Tb.Sp trabecular separation, SMI structure model index, SED sedentary control group, EX12 exercise group with a speed of 12 m/min, EX16 exercise group with a speed of 16 m/min, EX20 exercise group with a speed of 20 m/min
^aStatistically different from SED group (p < 0.05)
^bStatistically different from EX12 group (p < 0.05)
^cStatistically different from EX16 group (p < 0.05)
^dStatistically different from EX20 group (p < 0.05)

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