Table 4 Comparison of dual-task variability measures between groups

Stride time variability (%)

4.81 ± 4.77

7.23 ± 5.78

U = 51.0

0.020*

Swing ratio variability (%)

6.74 ± 3.86

8.43 ± 4.73

U = 67.5

0.109

Stance ratio variability (%)

2.81 ± 1.42

3.63 ± 1.63

U = 65.0

0.087

Swing time variability (%)

6.87 ± 3.45

10.81 ± 8.02

U = 49.0

0.016*

Stance time variability (%)

6.62 ± 7.03

8.91 ± 6.37

U = 56.5

0.037*

Foot flat ratio variability (%)

11.75 ± 4.67

14.71 ± 5.32

T = -1.570

0.128

Pushing ratio variability (%)

9.80 ± 4.29

14.45 ± 7.38

U = 67.0

0.105

Loading ratio variability (%)

12.90 ± 5.45

16.81 ± 7.71

U = 74.0

0.188

Speed variability (%)

7.91 ± 4.81

10.76 ± 4.33

U = 56.0

0.035*

Stride length variability (%)

5.62 ± 3.57

7.63 ± 2.97

U = 50.0

0.018*

Strike angle variability (%)

-29.18 ± 38.95

8.45 ± 104.41

U = 106.0

0.930

Liftoff angle variability (%)

8.57 ± 4.27

13.00 ± 7.09

U = 58.0

0.044*

Min toe clearance variability (%)

42.57 ± 13.87

44.56 ± 20.68

T = -0.297

0.769

Heel trajectory forward MAD (mm)

25.22 ± 8.94

32.23 ± 8.54

U = 53.0

0.025*

Heel trajectory sideward MAD (mm)

2.65 ± 0.57

2.47 ± 0.40

T = 1.007

0.323

Heel trajectory vertical MAD (mm)

5.61 ± 2.02

6.47 ± 1.93

U = 80.0

0.293

Toe trajectory forward MAD (mm)

25.28 ± 9.29

32.03 ± 7.85

U = 53.0

0.025*

Toe trajectory sideward MAD (mm)

2.80 ± 0.89

2.57 ± 0.82

U = 117.0

0.569

Toe trajectory vertical MAD (mm)

2.41 ± 0.82

2.69 ± 0.61

U = 77.0

0.236

Heel 3D path length variability (%)

4.70 ± 3.13

6.47 ± 3.86

U = 59.0

0.048*

Toe 3D path length variability (%)

5.55 ± 3.28

7.41 ± 2.97

U = 53.0

0.025*