Table 1.
Features numbers, labels and short descriptions
| Feat. no. | Name | Description |
|---|---|---|
| 1 | TtW | Time to Walk 25 m at comfort speed |
| 2 | NbStep | Number of step to walk 25 m |
| 3 | StepFreq | Frequency of the Steps |
| 4 | VarStep | variation of the step period |
| 5-14 | MF | Median Frequency (sensors 1-10) |
| 15-24 | SpecEnt | Spectral entropy (sensors 1-10) |
| 25 | CorrArmLeg | Correlation between Arm and Leg |
| 26 | ApEn | Approximate entropy for sensor 1 |
| 27-36 | M3 | Third momentum (sensors 1-10) |
| 37-46 | Ma | Peakedness (sensors 1-10) |
| 47 | FreqPeakX1 | Abscise of the 1st freq. peak (left leg) |
| 48 | FreqPeakX2 | Abscise of the 2d freq. peak (left leg) |
| 49 | FreqPeakY1 | Ordinate of the 1st freq. peak (left leg) |
| 50 | FreqPeakY2 | Ordinate of the 2d freq. peak (left leg) |
| 51 | Size | Size (height) of the patients in m |
| 52 | Norm. Time | TtW/Size |
| 53 | Norm. NbStep | NbStep*Size |
| 54 | Norm. StepFreq | StepFreq*Size |
| 55 | ArmCorr | Correlation between both elbows |
| 56 | ArmDynL | Dynamic of the Left Arm signal |
| 57 | ArmDynR | Dynamic of the Right Arm signal |
| 58-67 | NJ | Approx. Normalized Jerk (sensors 1-10) |