Table 9.

Average differences of CoM parameters between Phase1 and Phase2 of the Po task for HC and PD subjects.

	PD Subjects	HC Subjects	Mann-Whitney U Test		T Test
Name	Phase2-Phase1	Phase2-Phase1	Z	p-Value a	p-Value a
APt	1.61	0.54	2.04	4.17 × 10−2	2.22 × 10−3
MLt	1.87	0.27	2.04	4.17 × 10−2	6.33 × 10−3
APv	1.14	0.52	2.11	3.44 × 10−2	9.86 × 10−4
MLv	1.04	0.45	1.97	4.89 × 10−2	1.11 × 10−3
SwayArea	1.88	0.25	2.13	3.28 × 10−2	7.19 × 10−3

^a Significance level p < 0.05.