Table 4.

Extracted features for each test.

	Test	Extracted features
1	Single tapping test	Tapped (total taps, valid taps), missed, bias, tapping frequency (mean value and variance of tapping intervals, tapping frequency declining slope from start to end)
2	Alternative tapping test	Tapped (total taps, valid taps, paired taps), missed, bias, tapping frequency (mean value and variance of tapping intervals, tapping frequency declining slope from start to end)
3	Rest tremor test	Rotation, acceleration, tremor frequency
4	Postural tremor test	Rotation, acceleration, tremor frequency
5	Target test	Duration, tapped (total taps, valid taps), tapping frequency (mean value and variance of tapping intervals, tapping frequency declining slope from start to end)
6	Circle tracing test	Bias, tracing velocity (average tracing velocity, tracing velocity declining slope from start to end), reduction slope of distance between finger position and circle centroid
7	Spiral tracing test	Bias, tracing velocity (average tracing velocity, tracing velocity declining slope from start to end), reduction slope of distance between finger position and spiral centroid
8	Circle drawing test	Bias, drawing velocity (average drawing velocity, drawing velocity declining slope from start to end), reduction slope of distance between finger position and circle centroid
9	Coordination test	Bias, tracing velocity (average tracing velocity, tracing velocity declining slope from start to end), left- and right-hand position coordination, passed trail points
10	Foot tapping test	Tapped
11	Gait test	Walking velocity, total steps