Performance Metric | Description |
---|---|

Percentage of Task Completion (%): | Ratio between the maximum active distance and the maximum passive distance for each of the five directions expressed as a percentage. |

Tracing Error (cm): | Mean distance between each position of the endpoint’s trajectory and the target line. |

Smoothness (-): | Spectral arc length (SPARC). The length of the frequency spectrum of the speed profile of a movement. [35]. |

Speed (cm/s): | The mean speed of a movement. |