Table 4. Summary of stability related measures.

		Arm swing
	Symmetry	Held	Normal	Active
MLE	Symmetric	0.52 ± 0.03	0.51 ± 0.03	0.49 ± 0.04
	Asymmetric	0.59 ± 0.06	0.56 ± 0.05	0.50 ± 0.03
Step width (cm)	Symmetric	19.1 ± 3.6	19.2 ± 3.8	19.6 ± 4.4
	Asymmetric	20.9 ± 3.6	20.8 ± 4.4	21.0 ± 4.4
Step width SD (cm)	Symmetric	1.71 ± 0.45	1.80 ± 0.49	22.7 ± 0.68
	Asymmetric	1.67 ± 0.40	1.74 ± 0.40	20.4 ± 0.54
Left step length (cm)	Symmetric	62.9 ± 3.9	62.9 ± 3.4	69.2 ± 3.6
	Asymmetric	54.6 ± 4.7	55.2 ± 3.3	60.6 ± 4.7
Left step length SD (cm)	Symmetric	1.77 ± 0.37	16.0 ± 0.32	23.6 ± 0.54
	Asymmetric	2.32 ± 0.77	23.0 ± 0.82	26.9 ± 1.1
Right step length (cm)	Symmetric	63.8 ± 3.6	64.6 ± 3.0	69.9 ± 4.9
	Asymmetric	64.1 ± 5.1	64.7 ± 3.7	69.3 ± 6.8
Right step length SD (cm)	Symmetric	1.94 ± 0.58	1.73 ± 0.27	2.83 ± 0.92
	Asymmetric	2.71 ± 0.64	2.81 ± 1.46	3.32 ± 0.84