TABLE 2.

Group × time × vision repeated measures ANOVA of postural sway responses to level and downhill walking.

	Anteroposterior COP displacement			Mediolateral COP displacement			Mean COP velocity
	F	p	ηp2	F	p	ηp2	F	p	ηp2
Group	0.831	0.363	0.004	21.832	0.001	0.097	13.882	0.001	0.064
Time	21.718	0.001	0.349	12.969	0.001	0.242	13.663	0.001	0.252
Vision	21.709	0.001	0.097	6.551	0.011	0.031	10.044	0.002	0.047
Group × Time	29.517	0.001	0.421	11.224	0.001	0.217	16.866	0.001	0.293
Group × Vision	0.842	0.360	0.004	0.875	0.351	0.004	0.211	0.647	0.001
Time × Vision	0.938	0.457	0.023	0.155	0.978	0.004	0.225	0.951	0.006
Group × Time × Vision	0.491	0.783	0.012	0.959	0.444	0.023	0.159	0.977	0.004