From: The influence of posture duration on hand tremor during tasks with attention-distraction in persons with Parkinson’s disease
N
N, females
N, hands
Age (years)
UPDRS motor
UPDRS total
PD, rest
36
17
52
66 (8.9)
26.5 (9.0)
46.2 (14.1)
PD, postural
43
19
64
65 (9.2)
25.2 (9.6)
45.8 (15.2)
REF
40
80
66 (1.3)
–