Table 2.

Pearson’s correlation coefficient analysis of the PSD between posture-related cortex regions during the platform recovery phase with virtual reality interference.

Group		LF group			HF group
Band	Site	Fz	Cz	Pz	Fz	Cz	Pz
Theta	Cz	0.566∗	–	–	0.131	–	–
	Pz	0.538∗	0.147	–	0.290	0.538	–
	Oz	0.529	0.538	0.858∗∗	0.396	–0.121	0.390
Alpha	Cz	0.566∗	–	–	0.132	–
	Pz	0.539∗	0.147	–	0.291	0.538	–
	Oz	0.529∗	0.538	0.858∗∗	0.397	–0.118	0.390
Beta	Cz	0.569∗	–	–	0.140	–	–
	Pz	0.540∗	0.148	–	0.296	0.538	–
	Oz	0.530∗	0.534	0.858∗∗	0.404	–0.100	0.394
Gamma	Cz	0.576∗	–	–	0.158	–	–
	Pz	0.544∗	0.152	–	0.307	0.537	–
	Oz	0.543∗	0.525	0.858∗∗	0.419	–0.062	0.402

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