Table 3.

Summary of the results of all STP. The mean parameters plus SD, p-values, mean error, root mean square error (RMSE) (95% confidence interval (CI)), relative RMSE and bias (SD) are shown. Bold p values indicate significant differences between the systems (p < 0.05).

	OMC	IMU	p Value	Mean Error	RMSE	Relative RMSE (%)	Bias
Step Length (m)	0.61 ± 0.06	0.62 ± 0.07	<0.05	0.006	0.04 (0.03−0.04)	6.69	0.006 (0.08)
Stride Length (m)	1.21 ± 0.12	1.22 ± 0.12	0.39	0.005	0.04 (0.03−0.04)	2.98	0.005 (0.07)
Step Width (m)	0.09 ± 0.03	0.10 ± 0.03	<0.05	0.008	0.03 (0.02−0.03)	34.34	0.008 (0.06)
Swing Width (m)	0.09 ± 0.02	0.08 ± 0.03	<0.05	−0.008	0.03 (0.02−0.03)	35.20	−0.008 (0.06)
Step Time (s)	0.60 ± 0.06	0.60 ± 0.06	0.33	0.002	0.02 (0.01−0.02)	2.94	0.002 (0.03)
Stride Time (s)	1.20 ± 0.11	1.20 ± 0.11	0.63	0.002	0.01 (0.01−0.01)	0.90	0.002 (0.02)
Cadence (steps/min)	101.09 ± 10.02	100.79 ± 9.76	0.33	−0.296	3.10 (2.23−2.87)	3.07	−0.296 (6.05)
Single Limb Support (s)	0.39 ± 0.03	0.40 ± 0.03	<0.05	0.008	0.02 (0.01−0.02)	4.26	0.008 (0.03)
Double Limb Support (s)	0.81 ± 0.09	0.80 ± 0.09	<0.05	−0.006	0.02 (0.02−0.02)	2.32	−0.006 (0.04)
Stance Time (s)	0.80 ± 0.09	0.80 ± 0.09	<0.05	−0.008	0.02 (0.01−0.02)	2.10	−0.008 (0.03)
Swing Time (s)	0.39 ± 0.03	0.40 ± 0.03	<0.05	0.010	0.02 (0.01−0.02)	4.40	0.010 (0.03)
Speed (m/s)	1.03 ± 0.14	1.03 ± 0.15	0.57	0.003	0.03 (0.02−0.03)	2.72	0.003 (0.05)