TABLE 3.

COP displacement variable data recorded in the four test conditions for PD patients and control groups.

	Control group				PD patient group
	ST		DT		ST		DT
	OE	CE	OE	CE	OE	CE	OE	CE
Trace length (mm)	1433.42 ± 311.66	1535.72 ± 270.34	1460.89 ± 309.23	1570.06 ± 334.99	1484.12 ± 316.47	1704.42 ± 407.54	1519.86 ± 424.89	1727.27 ± 577.12
Area (mm2)	1958.87 ± 626.61	2291.25 ± 1110.07	1821.46 ± 825.60	2007.67 ± 1136.01	3030.70 ± 1254.25	4011.22 ± 1637.79	2683.34 ± 979.07	3473.88 ± 1371.51
Radius (mm)	4.81 ± 1.67	5.24 ± 1.98	4.34 ± 4.31	4.31 ± 1.45	6.75 ± 2.35	7.69 ± 1.95	5.78 ± 1.38	6.43 ± 1.33
A-P sway (mm)	40.49 ± 26.89	46.08 ± 24.61	44.88 ± 28.65	40.86 ± 30.90	69.28 ± 31.48	67.49 ± 31.29	64.06 ± 35.65	63.26 ± 24.22
M-L sway (mm)	6.85 ± 4.91	5.74 ± 4.67	4.49 ± 4.69	4.60 ± 3.90	6.05 ± 4.47	6.60 ± 5.31	7.35 ± 3.85	6.47 ± 4.33
A-P range (mm)	22.81 ± 7.55	28.78 ± 9.90	21.67 ± 8.58	23.43 ± 7.94	31.32 ± 13.25	36.98 ± 9.46	27.43 ± 8.38	31.77 ± 8.69
M-L range (mm)	15.71 ± 5.42	17.41 ± 8.51	14.20 ± 5.76	15.62 ± 7.33	23.74 ± 7.25	29.81 ± 9.12	21.44 ± 5.26	28.05 ± 9.12

Values are Mean ± Standard Deviation. PD, Parkinson’s disease; ST, single task; DT, dual-task; OE, open eyes; CE, closed eyes; A-P, anteroposterior; M-L, mediolateral.