Table 1 Gait parameters in single-task and dual-task conditions, and dual-task effect

Spatio-temporal parameters

 Gait speed (m/s)

1.30 ± 0.12

1.17 ± 0.10

<0.001

10.0 ± 3.8 %

 Cadence (strides/min)

54.9 ± 2.9

52.4 ± 3.9

<0.001

4.6 ± 3.1 %

 Stride length (m)

1.42 ± 0.14

1.34 ± 0.11

<0.001

5.6 ± 3.5 %

 Double support (% GC)

11.2 ± 2.7

13.3 ± 2.3

<0.001

23 % ± 20 %

Stride-to-stride variability

 CV^a of stride time (%)

1.86 ± 0.42

2.33 ± 0.63

0.008

28 ± 34 %

Sub-phases of stance (duration)

 H, Heel contact (% GC)

6.6 ± 2.0

6.9 ± 3.3

0.4

-

 F, Flat foot contact (% GC)

26.4 ± 4.0

30.0 ± 4.3

<0.001

14 ± 8 %

 P, Push off (% GC)

22.6 ± 4.0

19.8 ± 3.4

<0.001

12 ± 6 %