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

Table 1

The definition of three kinematic severity levels of involuntary movements and jerks, as well as their corresponding abilities in performing reaching tasks in daily living.

Level	1	2	3
Number of submovements	0	≤3	>3
Amplitude of submovements	0	0.3 m	>0.3 m
Number of jerks	0	3	>3
Amplitude of jerks	0	0.03 m	>0.03 m
Duration	5 s	5 s~10 s	>10 s
Ability in performing reaching task	High	Medium	Low