Table 1 Subject characteristics (n = 40)

Age [Yrs]

62.16 ± 10.02

41-81

Gender [f/m]

8/32

Disease duration [Yrs]

5.34 ± 3.53

1-14.5

UPDRS at off

59.18 ± 21.96

29-108

Hoehn & Yahr

2.54 ± 0.66

2-4

Pull test

1.21 ± 1.29

0-3

Timed Up and Go [sec]

9.46 ± 2.46

5.63-17.79

Dynamic Gait Index

22.19 ± 1.81

16-24

Berg Balance Scale

53.12 ± 4.15

39 -56

Four Square Step Test

11.76 ± 3.12

7.45-19.5

Gait speed at off [m/sec]

1.15 ± 0.19

0.51-1.56

Number of fallers

9

Mini Mental State Exam

29.18 ± 1.21

25-30