From: Pre-impact fall detection using an inertial sensor unit
Trials | Acceleration (g) | Angular velocity (°/s) | Angle (°) | |||
---|---|---|---|---|---|---|
 |  |  | Pitch | Roll | Sagittal | Lateral |
Falls | Backward | 4.1 ± 0.6 | 300.3 ± 59.7 | 45.7 ± 14.2 | 94.2 ± 4.7 | 4.7 ± 3.2 |
 | Forward | 4.5 ± 0.5 | 220.6 ± 41.6 | 75.9 ± 17.2 | 89.6 ± 9.2 | 8.4 ± 4.6 |
 | Side | 4.4 ± 0.6 | 121.2 ± 13.7 | 419.4 ± 61.3 | 6.69 ± 2.7 | 75.95 ± 12.4 |
ADLs | Sit-Stand | 1.4 ± 0.2 | 110 ± 23.1 | 8.9 ± 7.6 | 31.1 ± 6.1 | 2.6 ± 1.3 |
 | Stand-Sit | 2.2 ± 0.3 | 392.3 ± 61.3 | 11.2 ± 6.1 | 11.63 ± 3.1 | 1.12 ± 2.7 |
 | Sit-Lying | 1.1 ± 0.1 | 80.7 ± 31.7 | 15.3 ± 3.8 | 90.3 ± 8.3 | 4.3 ± 2.8 |
 | Walking | 2.1 ± 0.2 | 50.1 ± 10.9 | 59.3 ± 14.9 | 1.4 ± 6.2 | 2.1 ± 3.1 |
 | Jump | 7.5 ± 1.1 | 421.2 ± 149.1 | 102.3 ± 62.1 | 27.3 ± 2.1 | 3.6 ± 3.8 |
 | Running | 4.2 ± 0.9 | 132.8 ± 45.7 | 98.2 ± 34.9 | 11.5 ± 9.7 | 2.6 ± 4.1 |