Table A2.
Comparison between the outcomes of the golden standard and stride-detection algorithm.
| Measurement | Mean (SD) (min, max) | Pearson’s r | Root Mean Square Error | Absolute Average Difference | |
|---|---|---|---|---|---|
| Strides left foot | GS | 49.3 (15.5) (27, 88) | r(28) = 0.97, p < 0.01 | 3.90 | 1.96 |
| SDA | 48.4 (16.1) (24, 88) | ||||
| Strides right foot | GS | 49.3 (15.5) (27, 88) | r(28) = 0.98, p < 0.01 | 3.36 | 1.60 |
| SDA | 47.8 (16.2) (23, 88) | ||||
| Steps low back | GS | 98.5 (31.0) (53, 176) | r(28) = 0.98, p < 0.01 | 6.51 | 2.46 |
| SDA | 97.2 (32.7) (47, 178) | ||||
| Distance left foot | GS | 29.9 (22,6) (7.6, 105.6) | r(28) = 0.97, p < 0.01 | 5.93 | 4.11 |
| SDA | 30.9 (21.0) (8.1, 97.8) | ||||
| Distance right foot | GS | 29.9 (22.6) (7.6, 105.6) | r(28) = 0.97, p < 0.01 | 5.69 | 3.90 |
| SDA | 32.3 (22.1 (8.1, 109.6) |
Abbreviations: GS = Golden standard; SDA = Step-Detection Algorithm; SD = Standard deviation; Min = Minimum; Max = Maximum.