Table 2A.
Bone and muscle measures for Vibration First group. Values are mean (SD).
| Variable | N | Baseline | 6 months | 12 months |
|---|---|---|---|---|
| L3 vertebral body | ||||
| CBD (mg/cm3) | 16 | 133 (23) | 133 (22) | 132 (23) |
| CSA (mm2) | 16 | 6.8 (1.0) | 7.2 (1.0) | 7.7 (1.2) |
| | ||||
| Tibia metaphysis | ||||
| Mean CBD (mg/cm3) | 15 | 63 (24) | 61 (25) | 58 (26) |
| CBD 1.25mm (mg/cm3) | 15 | 103 (41) | 105 (44) | 101 (59) |
| | ||||
| Tibia midshaft | ||||
| CBA (mm2) | 16 | 139 (38) | 152 (40) | 159 (40) |
| Imax (mm4) | 16 | 4063 (2722) | 4715 (2969) | 5063 (2857) |
| Imin (mm4) | 16 | 2438 (1434) | 2792 (1552) | 2942 (1482) |
| IAP (mm4) | 16 | 2834 (1684) | 3258 (1591) | 3400 (1500) |
| IML (mm4) | 16 | 3668 (2476) | 4249 (3002) | 4606 (2901) |
| J (mm4) | 16 | 6502 (4137) | 7507 (4501) | 8005 (4314) |
| | ||||
| Calf muscle | ||||
| Muscle area (mm2) | 16 | 15.0 (6.3) | 15.2 (6.2) | 15.3 (5.5) |
| Concentric torque (N-m) | 15 | 840 (758) | 1441 (1240) | 1463 (1379) |
| Eccentric torque (N-m) | 15 | 1186 (804) | 1889 (1360) | 2007 (1406) |
Data are shown for subjects with complete data for each variable. One subject had missing tibia metaphysis data at 12 months due to motion artifact. One subject was unable to comply with muscle strength testing.