Table-2.
Bone parameters addressed by micro-computed tomography (micro-CT) in all experimental groups (mean±standard deviation).
| Group (n=6) | CG | EG | TG | TEG |
|---|---|---|---|---|
| TV ROI (mm3) | 27.71±2.75 | 29.52±2.75 | 29.90±0.92 | 29.02±2.09 |
| BV ROI (mm3) | 17.72±1.08 | 19.21±2.28 | 20.02±0.77 | 19.74±1.84 |
| Md.V ROI (mm3) | 9.99±0.87 | 10.31±0.60 | 9.88±0.67 | 9.28±0.55 |
| BV/TV (%) | 63.83±1.17# | 65.00±1.90#,$ | 67.00±1.67$ | 67.83±2.14$ |
| TS (mm2) | 56.33±2.80 | 58.33±4.26 | 59.00±1.41 | 57.83±2.79 |
| BS (mm2) | 72.33±3.20 | 76.00±5.02 | 76.00±1.67 | 79.67±6.62 |
| iS (mm2) | 40.33±1.37 | 42.17±2.32 | 42.00±1.26 | 41.50±1.64 |
| BS/BV (mm) | 4.10±0.12 | 3.97±0.26 | 3.83±0.08 | 4.03±0.23 |
| BS/TV (mm) | 2.62±0.10#,$ | 2.57±0.08#,$ | 2.55±0.08# | 2.73±0.15$ |
| CV (mm3) | 17.72±1.08 | 19.21±2.28 | 20.02±0.77 | 19.74±1.84 |
| Po (tot) (%) | 0.12±0.12# | 0.11±0.05# | 0.17±0.16# | 0.73±0.48$ |
| MBV (%) | 16.27±1.30# | 21.69±2.20$ | 19.21±2.11#,$ | 22.09±1.94$ |
| Tb.N (per mm) | 1.73±0.17# | 2.44±0.17$,&,* | 2.10±0.23& | 2.55±0.23* |
| Tb.Th (micra) | 94.25±3.76# | 88.89±4.63#,$ | 91.67±2.94#,$ | 86.78±2.45$ |
| Tb.Sp (micra) | 500.04±41.88# | 335.03±25.58$ | 396.88±55.95$ | 319.32±23.39$ |
| Conn.Dn (per mm3) | 28.96±8.21# | 63.00±4.83$,* | 47.85±2.74$,* | 58.18±5.47$,* |
| BMD (g/cm3) | 0.27±0.02# | 0.35±0.03$ | 0.31±0.04#,$ | 0.36±0.04$ |
| TMD (g/cm3) | 1.26±0.02 | 1.26±0.02 | 1.26±0.01 | 1.27±0.01 |
TV ROI=Tissue volume in a region of interest (ROI) (cortical bone including pores); BV ROI=Bone volume in ROI (cortical bone without pores); Md.V ROI=Medullary volume in ROI; BV/TV=Percent bone volume; TS=Tissue surface; BS=Bone surface; iS=Intersection surface; BS/BV=Bone surface/volume ratio; BS/TV=Bone surface density; CV=Cortical volume; Po (tot)=Total porosity; MBV=Medullary bone volume; Tb.N=Trabecular number; Tb.Th=Trabecular thickness; Tb.Sp=Trabecular separation; Conn.Dn=Connectivity density; BMD=Bone mineral density; TMD=Tissue mineral density. For each parameter, values with different symbols were considered statistically different (p<0.05). CG=Control group, EG=Exercised group, TG=Testosterone group, TEG=Testosterone exercised group