Research Article

Quantitative Assessment of ADL: A Pilot Study of Upper Extremity Reaching Tasks

Figure 6

The metric given by these approaches tends to illustrate the consistency characteristics in various approaches used to evaluate the smoothness of trajectories in two severity levels. With the increase of numbers and amplitudes of both involuntary movements and jerks, the smoothness of the trajectories deteriorates. The first half (with blue from 1 to 25) is in the second level and the last half (with red from 26 to 50) is in the third level. The VP was computed with a threshold value of 0.01 meter/s and the temporal gap between two consecutive peaks was 100 ms.