Table 3.
Accuracy statistics of estimated spatial gait cycle parameters compared to the gold standard (gait mat).
| Param. | Metric | mEar | Gait Mat | RMSEABS | RMSEREL | R | ICC(3,1) |
|---|---|---|---|---|---|---|---|
|
Stride
length |
Mean | 111.0 ± 13.8 cm | 115.1 ± 17.5 cm | 9.7 cm | 8.5% | 0.867 | 0.843 |
| CV | 4.4 ± 1.9% | 2.7 ± 1.6% | 2.2% | 82.2% | 0.622 | 0.617 | |
| Asym. | 1.1 ± 1.1% | 0.3 ± 0.2% | 1.4% | 4.9% | 0.081 | 0.035 | |
|
Stride
width |
Mean | 8.0 ± 0.8 cm | 7.2 ± 1.4 cm | 1.6 cm | 21.7% | 0.321 | 0.270 |
| CV | 8.8 ± 5.6% | 22.1 ± 8.8% | 16.9% | 75.7% | 0.096 | 0.087 | |
| Asym. | 2.5 ± 2.4% | 2.1 ± 2.3% | 3.2% | 1.5% | 0.112 | 0.112 |
Significant outcomes are marked in bold. Abbreviations: CV: coefficient of variation; Asym.: asymmetry; R: Pearson’s correlation coefficient (significant results marked in bold); RMSEABS, REL: absolute and relative root-mean-square error; ICC: intraclass correlation coefficient.