Table 1.

Summary of the Linear Fit Method (LFM) outputs and root mean square error (RMSE) values (mean ± SD) for session 1 (S1) and session 2 (S2); ADL = activity of daily living.

ADL	Session		a1	a0 [°]	R2	RMSE [°]
Walking	S1	n = 32	0.96 ± 0.07	8.04 ± 9.77	0.989 ± 0.005	9.09 ± 7.52
		n = 9	1.00 ± 0.06	0.33 ± 2.75	0.988 ± 0.005	3.38 ± 1.14
	S2	n = 9	1.00 ± 0.06	0.15 ± 3.48	0.988 ± 0.005	3.31 ± 1.34
Jogging	S1	n = 32	0.95 ± 0.05	8.73 ± 9.45	0.989 ± 0.006	8.81 ± 6.92
		n = 9	0.98 ± 0.04	1.33 ± 2.82	0.989 ± 0.004	3.87 ± 1.26
	S2	n = 9	0.97 ± 0.04	1.45 ± 3.13	0.991 ± 0.003	3.40 ± 1.27
Stair ascent	S1	n = 32	0.94 ± 0.04	9.51 ± 9.27	0.998 ± 0.002	8.39 ± 6.82
		n = 9	0.96 ± 0.03	2.45 ± 2.94	0.997 ± 0.003	3.73 ± 1.48
	S2	n = 9	0.96 ± 0.03	1.93 ± 2.79	0.998 ± 0.001	3.20 ± 1.64
Stair descent	S1	n = 32	0.95 ± 0.03	8.15 ± 8.99	0.995± 0.003	8.45 ± 6.69
		n = 9	0.97 ± 0.02	1.23 ± 3.03	0.994 ± 0.003	3.84 ± 1.45
	S2	n = 9	0.97 ± 0.03	0.89 ± 2.90	0.994 ± 0.003	3.31 ± 1.52
Chair rise	S1	n = 32	0.92 ± 0.05	10.31± 9.42	0.999 ± 0.002	8.69 ± 6.40
		n = 9	0.95 ± 0.06	3.63 ± 3.35	0.998 ± 0.002	4.78 ± 2.02
	S2	n = 9	0.95 ± 0.05	3.36 ± 2.95	0.998 ± 0.002	4.19 ± 1.82
Sitting down	S1	n = 32	0.94 ± 0.05	7.62 ± 9.27	0.999 ± 0.001	7.64 ± 5.64
		n = 9	0.96 ± 0.05	1.00 ± 3.44	0.999 ± 0.001	4.20 ± 1.14
	S2	n = 9	0.96 ± 0.05	0.72 ± 3.01	0.999 ± 0.001	4.05 ± 2.32
Squatting	S1	n = 32	0.94± 0.05	8.92 ± 11.51	0.998 ± 0.002	9.85 ± 6.93
		n = 9	0.95 ± 0.04	2.31 ± 2.50	0.998 ± 0.001	4.49 ± 2.33
	S2	n = 9	0.95 ± 0.04	1.83 ± 2.94	0.998 ± 0.001	4.33 ± 2.37