Table 1. Demographic and clinical characteristics of PD and control group for the five-day practice sessions.

	PD (n = 19)			CG (n = 19)
Variable	M	SD	Range	M	SD	Range
Age	63.9	8.8	45–77	64.8	10.1	44–80
Duration of PD (years)	6.8	5.7	1–20
UPDRS motor score	26	9	11–41
H&Y			1.5–3
MMSE	27.6	2.3	22–30	28.6	1.3	26–30
Medication (mg): Levodopa (n = 19)	459.5	192	187.5–900
Carbidopa (n = 19)	112	48	47–187.5
Entacapon (n = 8)	771.4	335.2	200–1200

UPDRS = Unified Parkinson's disease Rating Scale.

H&Y = Hoehn and Yahr rating scale.

MMSE = Mini Mental State Examination.