Table 2.

Video-extracted motor features in the unilateral and bilateral tasks of the MDS-UPDRS-III bradykinesia upper limb motor tasks.

		PD		HS
		MAS	LAS	DS	NDS	P -value
Finger tapping
Single hand (unilateral)	Amplitude Normalized amplitude [0–1]	0.73 (0.3)	0.81 (0.3)	0.84 (0.4)	0.87 (0.4)	0.345
	Speed (Time[frames])	2.03 (0.85)	2.26 (0.99)	2.35 (0.86)	2.19 (0.69)	0.247
	Fatigue	0.10 (0.27)	0.10 (0.27)	0.08 (0.15)	0.10 (0.19)	0.760
Two-hands (bilateral)	Amplitude Normalized amplitude [0–1]	0.56 (0.25)	0.77 (0.28)	0.79 (0.44)	0.80 (0.37)	0.042
	Speed (Time[frames])	2.13 (0.91)	2.25 (0.80)	2.03 (0.71)	2.03 (0.71)	0.705
	Fatigue	0.11 (0.20)	0.15 (0.25)	0.00 (0.33)	0.05 (0.33)	0.106
Hand movements
Single hand (unilateral)	Amplitude Normalized amplitude [0–1]	0.92 (0.21)	0.97 (0.24)	0.9 (0.19)	1.02 (0.20)	0.904
	Speed (Time[frames])	1.40 (0.46)	1.80 (0.55)	1.68 (0.72)	1.58 (0.48)	0.143
	Fatigue	0.01 (0.18)	0.07 (0.18)	0.04 (0.16)	0.05 (0.19)	0.531
Two-hands (bilateral)	Amplitude	0.85 (0.25)	1.04 (0.27)	0.94 (0.15)	0.94 (0.15)	0.176
	Speed (Time[frames])	1.52 (0.41)	1.58 (0.46)	1.43 (0.41)	1.43 (0.41)	0.487
	Fatigue	−0.06 (0.17)	−0.01 (0.21)	0.11 (0.14)	0.09 (0.19)	0.044
Pronation supination movement of the hand
Single hand (unilateral)	Amplitude (degrees)	116.67 (34.08)	137.21 (25.94)	136.18 (28.18)	120.72 (32.50)	0.053
	Speed (Time[frames])	1.55 (0.78)	1.78 (0.66)	1.65 (0.86)	1.54 (0.81)	0.698
	Fatigue	4.91 (24.01)	23.39 (36.64)	17.21 (53.79)	6.81 (39.19)	0.346
Two-hands (bilateral)	Amplitude (degrees)	113.07 (30.70)	130.50 (39.93)	128.45 (37.67)	129.85 (37.90	0.159
	Speed (Time[frames])	1.38 (0.46)	1.47 (0.47)	1.45 (0.69)	1.56 (0.70)	0.689
	Fatigue	21.94 (40.28)	4.88 (45.59)	28.39 (42.69)	2.00 (37.79)	0.622

Video-extracted motor features in the unilateral and bilateral tasks of the MDS-UPDRS-III bradykinesia upper limb motor tasks. PD, Parkinson's disease; HSs, healthy subjects; MAS, most affected side; LAS, less affected side; DS, dominant side; and NDS, non-dominant side.