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Data from IMUs and OptiTrack system demonstrating the accuracy and variability.
| Heel Slides | Short Arc Quad | Sit-to-Stand | |
|---|---|---|---|
| RoM IMUs (Mean ± SD) | 58.2° ± 3.5° | 27.5° ± 5.3° | 92.5° ± 6.7° |
| RoM OptiTrack (Mean ± SD) | 59.9° ± 3.9° | 28.9° ± 5.3° | 89.3° ± 6.5° |
| Intra-Subject Variability IMUs | 2.4° | 2.0° | 2.5° |
| RMSE (IMUs vs. OptiTrack) | 2.4° | 2.0° | 2.9° |
| ICC (IMUs vs. OptiTrack) | 0.58 | 0.86 | 0.80 |
