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Table 3 Dual-task cost

From: Interference of functional dual-tasks on gait in untrained people with Parkinson’s disease and healthy controls: a cross-sectional study

Outcomes

Condition to compare

PDG

HG

DT cost

95% CI

DT cost

95% CI

Velocity

Visual

−7.49

−.04 to .19

− 6.09

−.04 to .18

Verbal

−14.97

.07 to .22*

−12.70

.08 to .22*

Auditory

−12.20

.06 to .17*

−12.19

.09 to .20*

Motor

−15.09

.08 to .20*

−10.34

.06 to .18*

Stride length

Visual

−6.19

.01 to .14*

−4.95

.01 to .13*

Verbal

−10.48

.07 to .18*

−7.61

.05 to .15*

Auditory

−7.40

.03 to .15*

−6.39

.03 to .14*

Motor

−13.0

.08 to .25*

−6.74

.01 to .18*

Cadence

Visual

−.32

−5.12 to 5.82

−3.37

−1.22 to 9.33

Verbal

−4.33

−1.12 to 10.73

−6.19

1.73 to 13.16*

Auditory

−2.07

−4.06 to 8.65

−5.72

.75 to 13.01*

Motor

−2.28

−3.04 to 8.10

−3.68

−.94 to 9.80

Double support time

Visual

7.16

−3.39 to −.89*

5.96

−2.77 to −.36*

Verbal

12.63

−5.25 to −2.32*

7.30

−3.33 to −.50*

Auditory

7.70

−3.28 to −1.32*

8.56

−3.19 to − 1.30*

Motor

10.66

−4.57 to −1.81*

9.19

−3.74 to −1.08*

Ankle range

Visual

−6.48

.00 to 2.33*

−4.16

−.29 to 1.95

Verbal

−8.68

.51 to 2.61*

−2.47

−.51 to 1.50

Auditory

.45

−1.66 to 1.50

−.93

−1.34 to 1.71

Motor

−11.24

.59 to 3.46*

−.99

−1.18 to 1.57

Hip extension

Visual

−5.70

−2.07 to .98

3.01

−1.19 to 1.75

Verbal

−8.87

−2.35 to .64

.61

−1.39 to 1.50

Auditory

−10.01

−2.40 to .47

−1.47

− 1.52 to 1.25

Motor

−13.84

−2.97 to .30

− 2.37

− 1.80 to 1.36

Hip flexion

Visual

−1.94

−1.13 to 2.22

−5.44

.15 to 3.39*

Verbal

−5.15

.17 to 2.69*

−5.66

.62 to 3.05*

Auditory

−2.23

−.78 to 2.03

−6.51

.75 to 3.47*

Motor

−4.37

−.03 to 2.47

− 6.71

.97 to 3.39*

Weight-acceptance force

Visual

−1.24

−.19 to .39

−2.55

−.00 to .56

Verbal

−1.20

−.11 to .35

−3.80

.19 to .65*

Auditory

−1.18

−.13 to .38

− 3.95

.19 to .69*

Motor

−.99

−.17 to .39

−2.42

.01 to .56*

Midstance force

Visual

1.37

−.34 to .09

2.42

−.40 to .02

Verbal

4.16

−.58 to −.11*

6.09

−.70 to −.24*

Auditory

2.91

−.49 to −.01*

7.02

−.78 to −.31*

Motor

3.47

−.54 to −.05*

4.75

−.63 to −.16*

Braking force

Visual

−12.59

−.24 to −.04*

− 10.03

−.25 to −.05*

Verbal

−25.30

−.42 to −.17*

− 11.96

−.30 to −.06*

Auditory

− 14.82

−.29 to −.05*

− 16.67

−.37 to −.14*

Motor

− 17.59

−.39 to −.04*

− 11.97

−.36 to −.02*

  1. Differences between single-task and dual-tasks conditions for each group from post-hoc analysis are shown with de 95% confidence interval (95% CI). * Indicates significant statistical differences between single-task and dual-task condition (p < .05). The dual-task cost was calculated with eq. 1. Negative percentages mean a decrease in the value measured during the dual-task compared with the single-task condition
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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