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Table 3 Reproduciblity and measurement error: ICC, SEM and SDC for patients with vestibular disorders (n = 35)

From: Discriminant validity and test re-test reproducibility of a gait assessment in patients with vestibular dysfunction

 

Gait speed (m/s)

Cadence (steps/min.)

Step length (cm)

Gait tasks with;

ICC (CI)

SEM

SDC

ICC (CI)

SEM

SDC

ICC (CI)

SEM

SDC

Self-selected walking speed

0.94

0.05

0.15

0.87

3.5

10.0

0.95b

2.2b

6.1b

(0.89/0.97)

(0.76/0.94)

(0.91/0.98)

Horizontal head turns

0.93

0.07

0.20

0.70

9.0

24.9

0.93

2.5

7.0

(0.86/0.96)

(0.49/0.84)

(0.86/0.96)

Vertical head turns

0.96

0.06

0.16

0.85

6.2

17.1

0.96

2.3

6.4

(0.92/0.98)

(0.72/0.93)

(0.93/0.98)

Closed eyes

0.87

0.08

0.23

0.83

6.3

17.3

0.92

3.4

9.4

(0.78/0.94)

(0.70/0.92)

(0.85/0.96)

Ambulating backwards

0.95

0.09

0.26

0.94

3.4

9.5

0.95

2.5

6.9

(0.90/0.98)

(0.88/0.97)

(0.91/0.98)

Dual taska

0.89

0.05

0.14

0.89a

5.6

15.5

0.87

3.4

9.6

(0.79/0.95)

(0.79/0.94)

(0.75/0.93)

  1. aDual tasking tests were performed with 34 patients; bStep length during self-selected walking speed was performed in 32 patients. Three measures were invalid and could not be repeated. The dual-tasking paradigm was performed with a) self-selected walking speed and b) dual-tasking (counting backwards from 100 in steps of 7 during self-selected walking speed