Table 2 Inclusion characteristics. Baseline characteristics (Mean ± SD) of young and elderly subjects in vitamin-D and placebo group, respectively
Young men | Vitamin-D (n = 7) | Placebo (n = 10) | Group difference (p-value) |
Age, years | 23.3 ± 2.0 | 22.4 ± 1.8 | 0.39 |
Height, cm | 181.6 ± 6.3 | 181.1 ± 5.5 | 0.85 |
Weight, kg | 77.9 ± 11.4 | 75.6 ± 9.1 | 0.66 |
Body mass index, kg/m2 | 23.6 ± 3.6 | 23.0 ± 2.3 | 0.69 |
CSA, cm2 | 57.9 ± 9.7 | 59.0 ± 4.8 | 0.78 |
Isometric muscle strength, Nm | 215.6 ± 30.7 | 209.5 ± 30.5 | 0.71 |
Strength/CSA, Nm/cm2 | 3.82 ± 0.92 | 3.55 ± 0.47 | 0.45 |
Elderly men | Vitamin-D (n = 7) | Placebo (n = 10) | Group difference (p-value) |
Age, years | 67.1 ± 2.9 | 66.6 ± 4.2 | 0.78 |
Height, cm | 178.5 ± 1.9 | 178.8 ± 6.7 | 0.93 |
Weight, kg | 84.8 ± 5.7 | 80.4 ± 9.3 | 0.32 |
Body mass index, kg/m2 | 26.6 ± 1.8 | 25.1 ± 1.1 | 0.11 |
CSA, cm2 | 53.7 ± 2.7 | 47.0 ± 7.3 | 0.047 |
Isometric muscle strength, Nm | 154.6 ± 22.0 | 168.3 ± 35.3 | 0.41 |
Strength/CSA, Nm/cm2 | 2.89 ± 0.45 | 3.46 ± 0.49 | 0.03 |