Research Article
Finger Tapping Clinimetric Score Prediction in Parkinson's Disease Using Low-Cost Accelerometers
Table 2
Features summary with minimum and maximum values across the 86 observations. The 8 MDS-UPDRS features are presented first.
| | Feature | Feature definition | Min | Max |
| | Freq | Mean movement frequency (Hz) | 0.367 | 5.106 | | Dfreq | Index for decrementing frequency (—) | 2 | 10 | | Afreq | Index for augmenting frequency (—) | 2 | 10 | | Angle | Mean opening angle (°) | 5.139 | 117.8 | | Dangle | Index for decrementing angle (—) | 2 | 10 | | Hypom | Hypometria (—) | 0 | 10 | | Hesits | Number of hesitations (—) | 0 | 5 | | Halts | Number of halts (—) | 0 | 1 | | Topen | Mean, standard deviation, and slope
of percentage of movement time
for maximum opening
acceleration (—) | 0.191 | 0.533 | | sdTopen | 0.017 | 0.232 | | slTopen | | 0.032 | | Aclose | Mean, standard deviation, and slope of
maximum closing acceleration (g) | 1.131 | 9.676 | | sdAclose | 0.338 | 3.145 | | slAclose | | 0.603 | | Aopen | Mean, standard deviation, and slope of
maximum opening acceleration (g) | 0.761 | 10.81 | | sdAopen | 0.054 | 1.483 | | slAopen | | 0.364 | | RMS | Root mean square (g) | 0.942 | 4.047 |
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