Table 1.
Baseline characteristics of study subjects.
| Characteristic* | Vibration group (n=34) | Control group (n=25) |
|---|---|---|
| Age (years) | 69.3(4.9) | 69.8(4.4) |
| Muscle strength ‡ (kg) | ||
| - Dominant leg | 6.9(2.2) | 7.3(2.2) |
| - Non-dominant leg | 6.2(2.3) | 6.9(2.1) |
| Balancing ability | ||
| - Reaction time (s) | 1.04(0.2) | 0.79(0.4) |
| - Movement velocity (°/sec) | 2.48(0.8) | 2.6(0.9) |
| - Endpoint excursion (%) | 55.6(12.8) | 57.9(11.2) |
| - Maximum point excursion (%) | 68.3(13.2) | 71.2(11.3) |
| - Directional control (%) | 70.9(8.3) | 66.0(10.2) |
| SF-36 | ||
| - Physical health component | 66.3(14.3) | 66.0(16.5) |
| - Mental health component | 79.6(14.4) | 78.8(15.4) |
| - Total | 74.6(12.8) | 73.7(14.3) |
| Bone mineral density (g/cm2) | ||
| - Total hip | 0.73(0.13) | 0.74(0.09) |
| - Total Spine | 0.79(0.16) | 0.80(0.13) |
| T-score | ||
| - Total hip | -1.45(1.16) | -1.46(0.91) |
| - Total Spine | -1.85(1.54) | -1.76(1.20) |
*
Values above are mean(SD).