Table 5 Changes in the outcome variables between before and after intervention

TUG (sec)^†

Single-task

12.63 ± 3.02

11.95 ± 2.57

0.272

Dual-task (cognitive)

14.80 ± 2.97

13.82 ± 2.74

0.099

Dual-task (physical)

20.48 ± 8.06

17.56 ± 4.78

0.136

TUG (the number of steps)^†

Single-task

19.04 ± 4.26

18.21 ± 3.30

0.332

Dual-task (cognitive)

21.50 ± 4.85

19.50 ± 3.13

0.109

Dual-task (physical)

29.08 ± 12.53

24.42 ± 5.15

0.045*

TUG dual-task interference (%)^†

Cognitive task

18.86 ± 17.70

12.73 ± 13.44

0.136

Physical task

62.29 ± 51.72

49.30 ± 35.38

0.239

Berg Balance Scale^††

49.50 (5.75)

51.00 (5.00)

0.047*

UPDRS^††

Total

38.50 (14.75)

36.50 (11.00)

0.091

Part I

3.00 (3.00)

2.00 (2.75)

0.058

Part II

11.50 (3.75)

9.50 (6.75)

0.142

Part III

20.00 (7.50)

19.50 (8.75)

0.754

Part IV

4.00 (3.75)

3.50 (3.25)

0.319

Stroop test^†

Word

76.08 ± 18.61

80.17 ± 20.47

0.059

Color

63.33 ± 13.07

66.17 ± 15.46

0.146

Word-color

37.50 ± 11.94

43.33 ± 10.22

0.003*

Trail-making test (sec)^†

A

46.16 ± 27.27

47.49 ± 25.60

0.347

B (n = 11)

147.62 ± 101.83

158.84 ± 92.67

0.790

Digit span^†

Forward

6.58 ± 1.56

6.67 ± 1.72

0.783

Backward

4.25 ± 1.55

4.08 ± 1.62

0.317