Table 2.

Difference between the LPS and reference system for distance traveled, for optimal and sub-optimal condition respectively.

	Optimal						Sub-optimal
	n	Reference (m)	Average diff (m)	Max diff (m)	Average diff (%)	Max diff (%)	n	Reference (m)	Average diff (m)	Max diff (m)	Average diff (%)	Max diff (%)
Task 1	34	9.52 ± 1.40	0.14 ± 0.26	1.00	1.5	10.5	17	9.90 ± 0.16	2.46 ± 2.10	7.68	24.9	77.6
Task 2	16	33.31 ± 1.25	0.60 ± 0.57	2.18	1.8	6.5	13	23.88 ± 1.53	6.92 ± 5.07	17.37	29.0	72.7
Task 3	19	9.41 ± 2.36	0.15 ± 0.21	0.86	1.6	9.1	8	11.71 ± 0.29	2.45 ± 2.75	8.73	20.9	74.5
Task 4	18	15.97 ± 6.19	0.24 ± 0.18	0.64	1.5	4.0	13	21.38 ± 2.47	3.21 ± 3.35	9.43	15.0	44.1
Task 5	16	132.81 ± 3.92	0.64 ± 0.46	1.65	0.5	1.2	13	140.17 ± 4.95	41.38 ± 48.23	192.54	29.5	137.4