Table 3.
Definition of instrumented TUG outcome measures used in the current study
| Measure abbreviation | Description |
|---|---|
| Time | Total time for the subject to complete the TUG (s) |
| Stride length | Stride length, distance between two consecutive heel contacts, averaged for left and right side. Normalized for height (% of subject height) |
| Stride velocity | Stride velocity, (% of subject height/s) |
| Cadence | Stepping rate (Steps/min) |
| Cycle time | Gait cycle time (GCT), duration of a complete gait cycle (s) |
| Double support | Double support, percentage of gait cycle with both feet on ground (% of GCT) |
| Swing time | Average percentage of a gait cycle that either foot is off the ground (% of GCT) |
| Stance time | Average percentage of gait cycle that either foot is on the ground (% of GCT) |
| Shank RoM | Shank range of motion, average of left and right (degrees) |
| Shank velocity | Peak (95%) shank angular velocity, average of left and right (degrees/s) |
| Arm RoM | Arm swing range of motion, average of the left and right sides (degrees) |
| Arm velocity | Peak (95%) arm angular velocity, average of left and right (degrees/s) |
| Trunk hor RoM | Range of motion of the trunk in the horizontal plane (degrees) |
| Trunk sag RoM | Range of motion of the trunk in the sagittal plane (degrees) |
| Trunk front RoM | Range of motion of the trunk in the frontal plane (degrees) |
| Trunk hor velocity | Peak angular velocity of the trunk in the horizontal plane (degrees/s) |
| Trunk sag velocity | Peak angular velocity of the trunk in the sagittal plane (degrees/s) |
| Trunk front velocity | Peak angular velocity of the trunk in the frontal plane (degrees/s) |
RoM range of motion, hor horizontal, sag sagittal, front frontal