Table 1. Summary and agreement statistics for the view angle unrelated gait parameters walking speed and step time.

Parameter	Our System	VICON	Pearson’s correlation			Bland-Altman			ICC(A,1)
	Mean ± SD	Mean ± SD	R	P	N	Bias	RPC	CV (%)
AV Walking Speed (cm/s)	123.06 ±14.26	122.53 ±14.50	1.000	<0.001	10	0.53	0.80	0.33	0.999
Step time L (s)	0.60 ±0.07	0.61 ±0.07	0.927	<0.001	267	-0.00	0.05	4.49	0.924
Step time R (s)	0.60 ±0.07	0.60 ±0.07	0.927	<0.001	281	0.00	0.05	4.38	0.925
AV step time L (s)	0.60 ±0.07	0.61 ±0.07	0.979	<0.001	10	-0.01	0.03	2.29	0.978
AV step time R (s)	0.60 ±0.06	0.60 ±0.06	0.976	<0.001	10	0.00	0.03	2.33	0.976
AV step time AVG (s)	0.60 ±0.06	0.60 ±0.07	1.000	<0.001	10	0.00	0.00	0.23	1.000

RPC: reproducibility coefficient (1.96*SD); CV: coefficient of variation (SD of mean values in %); ICC(A,1): intraclass correlation coefficient for absolute agreement. Subject averages across steps (AV) and sides (AVG) are labeled accordingly. Measures in bold can be compared to previously reported systems [1,2].