Table 4.

Step length RMSE and RA for different gait conditions in the test set (recall Table 1, top panel)

	Usual walking speed		Fast walking speed		Dual tasking Walking
	RMSE [cm]	RA [%]	RMSE [cm]	RA [%]	RMSE [cm]	RA [%]
Single SL	5.70 ± 0.25	8.50 ± 0.37	6.72 ± 0.35	8.80 ± 0.42	6.26 ± 0.25	10.65 ± 0.45
3-average SL	4.78 ± 0.28	6.96 ± 0.42	5.77 ± 0.35	7.47 ± 0.40	5.24 ± 0.23	8.86 ± 0.39
5-average SL	4.59 ± 0.28	6.64 ± 0.43	5.55 ± 0.35	7.18 ± 0.39	5.00 ± 0.22	8.45 ± 0.38
10-average SL	4.43 ± 0.29	6.36 ± 0.43	5.35 ± 0.34	6.91 ± 0.36	4.78 ± 0.22	8.08 ± 0.36

The test set refers to Table 1 top panel. Values are presented as mean ± standard deviation. The correlation is Pearson’s coefficient.

RMSE root mean square error, RA relative error.