Research Article
Analysis of Center of Pressure Signals by Using Decision Tree and Empirical Mode Decomposition to Predict Falls among Older Adults
Table 5
Numbers of statistically significant features on different COP measurement conditions.
| | Measurement conditions | C4 | OF | CF | CR | OR |
| | All | 35 | 11 | 4 | 17 | 27 | | Raw | 3 | 0 | 1 | 2 | 2 | | EMD derived | 32 | 11 | 3 | 15 | 25 | | IMF1 | 4 | 0 | 0 | 4 | 2 | | IMF2 | 7 | 2 | 1 | 3 | 4 | | IMF3 | 3 | 0 | 1 | 5 | 5 | | IMF4 | 6 | 2 | 0 | 3 | 5 | | IMF5 | 8 | 5 | 0 | 0 | 7 | | IMF6 | 4 | 2 | 1 | 0 | 2 | | Time domain (RMSD) | 3 | 3 | 0 | 1 | 5 | | Frequency domain | 10 | 4 | 1 | 4 | 9 | | Nonlinear domain | 22 | 4 | 3 | 12 | 13 |
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