Table 1.

Results of the relative power spectrum density (PSD) analysis by two-way repeated measure ANOVA of the Pz and Oz sites during the platform recovery phase with or without virtual reality.

Band	LF group		HF group		p-value
	noVR	VR	noVR	VR	Vision × group	Vision	Group
Pz site
Theta	5.1 ± 2.7	5.7 ± 4.0	5.4 ± 3.0	12.8 ± 9.7	0.031∗	0.011∗	0.049∗
Alpha	5.1 ± 2.7	5.8 ± 4.0	5.4 ± 3.0	12.9 ± 9.8	0.031∗	0.011∗	0.049∗
Beta	5.2 ± 2.2	6.0 ± 4.1	5.5 ± 3.2	13.3 ± 10.2	0.031∗	0.011∗	0.049∗
Gamma	5.6 ± 2.9	6.4 ± 4.4	5.8 ± 3.4	14.3 ± 11.1	0.030∗	0.010∗	0.049∗
Oz site
Theta	4.7 ± 3.8	5.8 ± 5.6	3.8 ± 2.9	9.9 ± 6.1	0.042∗	0.005∗∗	0.384
Alpha	4.7 ± 3.8	5.8 ± 5.6	3.7 ± 2.9	9.9 ± 6.1	0.041∗	0.005∗∗	0.386
Beta	4.8 ± 4.0	6.0 ± 5.8	3.8 ± 3.1	10.3 ± 6.4	0.039∗	0.005∗∗	0.377
Gamma	5.2 ± 4.2	6.3 ± 6.1	4.1 ± 3.2	11.0 ± 6.9	0.034∗	0.005∗∗	0.360

p < 0.05^∗; p < 0.01^∗∗; LF, low fall-risk potential group; HF, high fall-risk potential group.