Table 1.

Means and standard deviations of COP displacements and velocities of six conditions in sessions 1 and 2.

Conditions	COP displacements		COP velocities
	Session 1 (cm)	Session 2 (cm)	Session 1 (cm/second)	Session 2 (cm/second)
Double leg stance with feet shoulder width apart and eyes open	15.06 ± 3.42	15.04 ± 3.33	0.50 ± 0.11	0.50 ± 0.11
Double leg stance with feet shoulder width apart and eyes closed	18.21 ± 3.73	19.54 ± 3.98	0.61 ± 0.12	0.65 ± 0.13
Double leg stance with feet together and eyes open	25.18 ± 5.56	24.49 ± 4.86	0.84 ± 0.19	0.82 ± 0.16
Double leg stance with feet together and eyes closed	38.01 ± 8.29	39.43 ± 10.16	1.27 ± 0.28	1.30 ± 0.36
Single leg stance with eyes open	58.39 ± 13.55	56.31 ± 10.09	1.95 ± 0.45	1.88 ± 0.34
Single leg stance with eyes closed	132.21 ± 28.39	134.17 ± 29.23	4.41 ± 0.95	4.47 ± 0.97