Table A1.
Studies vs. Features extracted.
| Features | Studies | Number of Studies |
|---|---|---|
| Duration of the test | [17,32,49,51,52,54,55,58] | 8 |
| Maximum | [17,45,56,57,58] | 5 |
| Mean | [46,49,54,56,58] | 5 |
| Duration of each stage | [17,47,50,51,56] | 5 |
| Root Mean Square (RMS) | [45,46,56,58] | 4 |
| Standard deviation | [45,46,56,58] | 4 |
| Velocity | [32,44] | 2 |
| Time of sit-to-stand transition | [44,48] | 2 |
| Minimum | [45,57] | 2 |
| Energy | [45,46] | 2 |
| Entropy | [45,46] | 2 |
| Mobility angles | [32,48] | 2 |
| Time of stand-to-sit | [53,55] | 2 |
| Time of prepare-to-sit | [53,55] | 2 |
| Time of sit-down | [53,55] | 2 |
| Time of lift-up | [53,55] | 2 |
| Maximum change of the trunk angle | [51,55] | 2 |
| Maximum angular velocity during the lean forward and lift-up phases | [51,55] | 2 |
| Median deviation | [45] | 1 |
| Skewness | [45] | 1 |
| Interquartile range (IQR) | [45] | 1 |
| Kurtosis | [45] | 1 |
| Maximum and second maximum frequencies and amplitudes of the Fast Fourier Transform (FFT) | [45] | 1 |
| Number of times that the amplitude of the magnitude of the vector of accelerometer signal crosses the mean value | [45] | 1 |
| Mean of peak height | [45] | 1 |
| Correlation | [46] | 1 |
| Pitch | [46] | 1 |
| Signal Magnitude Area (SMA) | [46] | 1 |
| Signal Vector Magnitude (SVM) | [46] | 1 |
| Angular velocity of the mobility of the arm | [50] | 1 |
| Time to perform turn-to-sit | [50] | 1 |
| Time of lean forward phase | [53] | 1 |
| Time of the walking phase | [53] | 1 |
| Maximum angular velocities during lean forward and lift-up phases | [53] | 1 |
| Maximum change of trunk angle during the lean forward phase | [53] | 1 |
| Total number of steps during the walking phase and before the turn | [53] | 1 |
| Stride length | [32] | 1 |
| Distance traveled | [32] | 1 |
| Length of the lean forward period | [55] | 1 |
| Number of steps during | [55] | 1 |
| Coefficient of variation | [56] | 1 |
| Jerk | [58] | 1 |