Table 2.

Kinematics of finger tapping for healthy subject

	1°PERIOD t(s): 30-60	2°PERIOD t(s): 90-120	3°PERIOD t(s): 150-180	4°PERIOD t(s): 210-240	5°PERIOD t(s): 270-300	MEAN
ID (cm)	3.5 ± 2	6.3 ± 2.8	8.2 ± 2.5	6.2 ± 1.6	3.8 ± 1.6	5.6 ± 2.1
PD (cm)	1.7 ± 0.9	3.3 ± 0.8	3.9 ± 0.9	3.1 ± 0.8	2.8 ± 0.4	3 ± 0.7
f (Hz)	0.33	0.37	0.33	0.37	0.4	0.36 ± 0.03
ISD (cm)	0.02	0.03	0.02	0.01	0.01	0.016 ± 0.007
PSD (cm)	0.04	0.01	0.02	0.03	0.02	0.025 ± 0.012

Kinematics data measured when the healthy subject was performing the finger tapping with the right hand. R coefficients are not reported because the two SDs were lower than 1% in all the periods.

ID: Index Displacement; PD: Pinkie Displacement; f: frequency; ISD: rest Index Standard Deviation; PSD: rest Pinkie Standard Deviation.