Table 9.
Harmonic ratio and root mean square (RMS-AP, ML, V) and normalized RMSR-AP, ML and V from 5 m walk smartphone signals.
| Variables | Health Status | |||||
|---|---|---|---|---|---|---|
| Frail | Non-Frail | |||||
| Mean | SD | CV | Mean | SD | CV | |
| Harmonic Ratio_AP | 1.06 | 0.17 | 15.96 | 1.16 | 0.19 | 16.77 |
| Harmonic Ratio_V | 0.96 | 0.29 | 30.50 | 1.18 | 0.26 | 22.14 |
| Harmonic Ratio_ML | 1.09 | 0.37 | 34.36 | 0.98 | 0.25 | 25.19 |
| RMS_AP * | 0.12 | 0.03 | 24.50 | 0.15 | 0.02 | 15.23 |
| RMS_V * | 0.11 | 0.01 | 11.82 | 0.17 | 0.02 | 10.40 |
| RMS_ML * | 0.11 | 0.02 | 19.63 | 0.15 | 0.03 | 22.48 |
| RMSR_AP | 0.59 | 0.07 | 11.57 | 0.55 | 0.09 | 16.90 |
| RMSR_V | 0.56 | 0.07 | 12.89 | 0.62 | 0.05 | 8.47 |
| RMSR_ML | 0.58 | 0.05 | 9.41 | 0.55 | 0.09 | 15.50 |
* significant at p < 0.05.