Table 5.

Subject mean error, standard deviation, mean absolute error and its relative percentage averaged across clinical centers for both walking speeds (spatio-temporal parameters)

Parameter	Clinical center	$\overline{\mathit{me}}$		$\overline{\mathit{sde}}$		$\overline{\mathit{mae}}$		$\overline{mae\%}$
		NW	FW	NW	FW	NW	FW	NW	FW
Stride Time (ms)	UNIGE	< 1	< 1	15	14	12	11	1	1
	KULEU	< 1	< 1	12	11	9	9	1	1
	TASMC	< 1	< 1	14	13	10	10	1	1
	NEWCA	− 1	< 1	15	15	12	11	1	1
Stance Time (ms)	UNIGE	− 20	− 18	17	17	29	27	3	3
	KULEU	− 11	− 11	17	15	25	22	2	2
	TASMC	− 8	− 10	17	16	24	23	2	2
	NEWCA	− 11	− 12	17	15	24	23	3	4
Swing Time (ms)	UNIGE	20	18	17	17	29	27	3	3
	KULEU	11	11	17	16	25	23	2	2
	TASMC	8	10	18	16	24	23	2	2
	NEWCA	12	13	17	15	25	23	2	3
Step Time (ms)	UNIGE	< 1	< 1	16	15	13	12	1	1
	KULEU	< 1	< 1	14	13	11	11	1	1
	TASMC	< 1	< 1	16	15	12	12	1	1
	NEWCA	< 1	< 1	15	14	13	12	2	2
Stride Length (mm)	UNIGE	− 1	− 3	22	27	21	22	2	2
	KULEU	− 8	− 5	19	21	22	25	2	2
	TASMC	− 14	− 15	19	22	26	28	2	2
	NEWCA	− 4	− 6	19	30	19	27	2	2
Gait Velocity (mm/s)	UNIGE	− 2	− 4	23	30	21	24	2	2
	KULEU	− 7	− 5	20	25	21	27	2	2
	TASMC	− 13	− 16	20	25	25	30	3	2
	NEWCA	− 4	− 5	18	36	19	31	2	2

$\overline{\mathit{me}}$: subject mean error averaged across centers; $\overline{\mathit{sde}}$: subject error standard deviation averaged across centers; $\overline{\mathit{mae}}$: subject mean absolute error averaged across centers; $\overline{\%mae}$: mean absolute error referred to parameter estimate averaged across centers