Table 3.
Bone morphometry: means mid shaft cross-sectional perimeters and areas of the right tibias of the rats
| Groups | Tibial periosteal perimeter (mm) | Tibial endosteal perimeter (mm) | Tibial cortical area (mm2) | Tibial medullary area (mm2) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean ± SD | Percent difference compared to age-matched sedentary control (%) | Percent difference compared to baseline control (%) | Mean ± SD | Percent difference compared to age-matched sedentary control (%) | Percent difference compared to baseline control (%) | Mean ± SD | Percent difference compared to age-matched sedentary control (%) | Percent difference compared to baseline control (%) | Mean ± SD | Percent difference compared to age-matched sedentary control (%) | Percent difference compared to baseline control (%) | |
| C | 7.90 ± 0.33 | 4.31 ± 0.52 | 3.09 ± 0.21 | 1.40 ± 0.33 | ||||||||
| 8S | 8.15 ± 0.58 | +3.16 | 4.01 ± 0.60 | −6.96 | 3.65 ± 0.37 | +18.12 | 1.21 ± 0.34 | −13.57 | ||||
| 8Ex | 8.74 ± 0.32a | +7.2 | +10.63 | 4.38 ± 0.25a | +9.2 | +1.62 | 4.11 ± 0.21a | +12.6 | +33.01 | 1.42 ± 0.14 | +17.4 | +1.43 |
| 20S | 8.15 ± 0.39 | +3.16 | 3.98 ± 0.27 | −7.66 | 3.54 ± 0.36 | +14.56 | 1.14 ± 0.14 | −18.57 | ||||
| 8Ex12S | 8.68 ± 0.59a | +6.5 | +9.87 | 4.25 ± 0.36 | +6.8 | −1.39 | 4.07 ± 0.50a | +15.0 | +31.72 | 1.34 ± 0.22 | +17.5 | −4.29 |
| 20Ex | 8.96 ± 0.41a | +9.9 | +13.42 | 3.99 ± 0.49 | +0.3 | −7.42 | 4.49 ± 0.59a | +26.8 | +45.31 | 1.20 ± 0.27 | +5.3 | −14.29 |
| 32S | 8.64 ± 0.31 | +9.37 | 4.16 ± 0.36 | −3.84 | 3.84 ± 0.35 | +24.27 | 1.23 ± 0.23 | −12.14 | ||||
| 8Ex24S | 9.11 ± 0.34a | +5.4 | +15.32 | 4.39 ± 0.34 | +5.5 | +1.86 | 4.42 ± 0.30a | +15.1 | +43.04 | 1.44 ± 0.22 | +17.1 | +2.86 |
| 32Ex | 9.85 ± 0.70a,b | +14.0 | +24.68 | 4.12 ± 0.47 | −1.0 | −4.41 | 5.64 ± 0.75a,b | +46.9 | +85.52 | 1.28 ± 0.33 | +4.1 | −8.57 |
Values are means ± SD
a p < 0.05 compared to their age-matched sedentary controls
b p < 0.05 compared to 8Ex24S