Table 4.

Subject mean error, standard deviation and mean absolute error averaged across clinical centers for both walking speeds (gait events)

Parameter	Clinical center	$\overline{\mathit{me}}$		$\overline{\mathit{sde}}$		$\overline{\mathit{mae}}$
		NW	FW	NW	FW	NW	FW
Initial contact (ms)	UNIGE	9	9	10	11	15	14
	KULEU	3	4	9	9	11	10
	TASMC	5	8	10	11	12	13
	NEWCA	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.
Final contact (ms)	UNIGE	− 9	− 9	13	13	20	20
	KULEU	− 8	− 7	12	14	21	19
	TASMC	− 3	− 2	12	14	19	17
	NEWCA	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.

$\overline{\mathit{me}}$: 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