Table 2.

Comparisons of study variables with eyes open in single leg stance among three groups.

		TC group (N = 12)	BW group (N = 13)	C group (N = 11)	time		group		time × group
					P value	η2p	P value	η2p	P value	η2p
Time (second)					<0.001	0.337	0.014	0.229	0.011	0.152
	Week0	32.73 ± 16.69	40.80 ± 15.13	38.37 ± 13.73
	Week16	55.61 ± 10.20a,c	55.03 ± 12.80a,c	39.94 ± 8.05
	Week20	54.90 ± 10.95a,c	56.89 ± 8.78a,c	41.18 ± 11.07
	Week24	54.20 ± 19.98a,c	56.90 ± 28.55a,c	39.18 ± 8.56
Lng (mm)					<0.001	0.346	0.026	0.199	0.074	0.108
	Week0	422.57 ± 105.56	363.43 ± 104.7	427.93 ± 152.3
	Week16	217.89 ± 45.82a,c	245.42 ± 80.48a,c	375.9 ± 69.78
	Week20	256.27 ± 84.94a,c	260.73 ± 83.73a,c	357.29 ± 78.42
	Week24	319.34 ± 82.98a,c	276.83 ± 90.25a	367.22 ± 84.32
Area (cm2)					<0.001	0.517	<0.001	0.570	<0.001	0.307
	Week0	1.45 ± 0.53	1.32 ± 0.61	1.38 ± 0.71
	Week16	0.40 ± 0.11a,c	0.34 ± 0.25a,c	1.29 ± 0.20
	Week20	0.44 ± 0.18a,c	0.35 ± 0.24a,c	1.32 ± 0.14
	Week24	0.38 ± 0.13a,c	0.63 ± 0.38a,c	1.23 ± 0.40
D-ap (mm)					<0.001	0.413	0.004	0.280	0.026	0.132
	Week0	30.07 ± 4.82	28.47 ± 7.96	25.95 ± 6.71
	Week16	16.52 ± 3.62a,c	15.60 ± 5.64a,c	25.61 ± 6.51
	Week20	16.46 ± 3.44a,c	15.44 ± 4.45a,c	27.59 ± 6.08
	Week24	16.80 ± 3.49a,c	21.47 ± 6.58b	25.46 ± 7.22
D-ml (mm)					<0.001	0.528	0.003	0.293	<0.001	0.417
	Week0	33.62 ± 11.49	31.97 ± 9.88	33.59 ± 7.32
	Week16	18.61 ± 6.49a,c	16.46 ± 6.08a,c	29.26 ± 3.96
	Week20	19.48 ± 8.22a,c	16.71 ± 5.00a,c	28.84 ± 8.30
	Week24	22.85 ± 7.80a,c	24.30 ± 9.37b	28.18 ± 5.17
V-ap (mm/s)					<0.001	0.418	0.002	0.302	0.027	0.130
	Week0	7.61 ± 2.61	7.26 ± 2.24	7.63 ± 1.66
	Week16	4.22 ± 1.47a,c	3.74 ± 1.38a,c	6.64 ± 0.90
	Week20	4.43 ± 1.86a,c	3.79 ± 1.13a,c	6.55 ± 1.88
	Week24	5.19 ± 1.77a,c	4.52 ± 2.58a,c	6.40 ± 1.17
V-ml (mm/s)					<0.001	0.524	0.003	0.301	<0.001	0.413
	Week0	6.49 ± 1.18	6.21 ± 1.73	5.66 ± 1.46
	Week16	3.56 ± 0.83a,c	3.41 ± 1.22a,c	5.58 ± 1.41
	Week20	3.54 ± 0.79a,c	3.36 ± 0.97a,c	6.02 ± 1.32
	Week24	3.62 ± 0.81a,c	4.68 ± 1.43b	5.55 ± 1.57

Abbreviations: Time, the single-leg stance time; Lng, the total length of the COP trajectories; Area, the 95% confidence ellipse area of the COP movements; D-ap, the maximal displacement of the COP in the anterior–posterior direction; D-ml, the maximal displacement of the COP in the medial–lateral direction; V-ap, the mean AP total excursion velocities; V-ml, the mean ML total excursion velocities.

^aDenotes significant difference compared with the week₀ value within each group.

^bDenotes significant difference compared with the week₁₆ value within each group.

^cDenotes significant difference compared with the control group.