Table 3.
Absolute (AE) and signed error (SE) of temporal parameters for the three algorithms aggregated on stride-to-stride and straight-walking-bout level. Error metrics are provided as mean ± standard deviation. The best results for stride and step time are highlighted in bold.
| Stride-to-Stride Level | Straight-Walk Level | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Diao Improved | Diao Original | Jarchi | Diao Improved | Diao Original | Jarchi | ||||
| 200 Hz | 50 Hz | 200 Hz | 200 Hz | 200 Hz | 50 Hz | 200 Hz | 200 Hz | ||
| AE | Stride time (ms) | 12 ± 32 | 14 ± 36 | 24 ± 100 | 170 ± 288 | 10 ± 16 | 11 ± 21 | 17 ± 47 | 129 ± 158 |
| Step time (ms) | 9 ± 12 | 11 ± 13 | 9 ± 12 | 64 ± 94 | 5 ± 8 | 5 ± 7 | 5 ± 8 | 34 ± 55 | |
| Stance time (ms) | 76 ± 34 | 76 ± 36 | 76 ± 33 | 201 ± 247 | 71 ± 29 | 71 ± 29 | 72 ± 29 | 160 ± 161 | |
| Swing time (ms) | 78 ± 33 | 78 ± 34 | 78 ± 32 | 154 ± 144 | 74 ± 27 | 74 ± 27 | 75 ± 27 | 109 ± 72 | |
| SE | Stride time (ms) | −4 ± 33 | −4 ± 39 | 3 ± 103 | 37 ± 333 | −6 ± 18 | −5 ± 23 | 2 ± 50 | 61 ± 195 |
| Step time (ms) | −3 ± 15 | −3 ± 17 | −3 ± 15 | −7 ± 113 | −3 ± 8 | −3 ± 8 | −3 ± 8 | −10 ± 64 | |
| Stance time (ms) | 74 ± 38 | 74 ± 41 | 75 ± 36 | −50 ± 314 | 70 ± 31 | 70 ± 31 | 71 ± 31 | −46 ± 223 | |
| Swing time (ms) | −76 ± 36 | −76 ± 38 | −77 ± 35 | 72 ± 198 | −74 ± 28 | −74 ± 28 | −74 ± 29 | 66 ± 113 | |