. 2015 Oct 22;15:6. doi: 10.1186/s12901-015-0019-8

Table 3.

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

	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	0.95^b	2.2^b	6.1^b
Self-selected walking speed	(0.89/0.97)	0.05	0.15	(0.76/0.94)	3.5	10.0	(0.91/0.98)	2.2^b	6.1^b
Horizontal head turns	0.93	0.07	0.20	0.70	9.0	24.9	0.93	2.5	7.0
Horizontal head turns	(0.86/0.96)	0.07	0.20	(0.49/0.84)	9.0	24.9	(0.86/0.96)	2.5	7.0
Vertical head turns	0.96	0.06	0.16	0.85	6.2	17.1	0.96	2.3	6.4
Vertical head turns	(0.92/0.98)	0.06	0.16	(0.72/0.93)	6.2	17.1	(0.93/0.98)	2.3	6.4
Closed eyes	0.87	0.08	0.23	0.83	6.3	17.3	0.92	3.4	9.4
Closed eyes	(0.78/0.94)	0.08	0.23	(0.70/0.92)	6.3	17.3	(0.85/0.96)	3.4	9.4
Ambulating backwards	0.95	0.09	0.26	0.94	3.4	9.5	0.95	2.5	6.9
Ambulating backwards	(0.90/0.98)	0.09	0.26	(0.88/0.97)	3.4	9.5	(0.91/0.98)	2.5	6.9
Dual task^a	0.89	0.05	0.14	0.89^a	5.6	15.5	0.87	3.4	9.6
Dual task^a	(0.79/0.95)	0.05	0.14	(0.79/0.94)	5.6	15.5	(0.75/0.93)	3.4	9.6

^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