Table 4.

Changes on power values for each frequency band from baseline (T0) to post-NF training (T1) and 1-month follow-up (T2) for the 20 elderly patients.

The power log ratio of EEG frequency bands	T0	T1	T2				T1–T0	T2–T0	T2–T1
	(n = 20)	(n = 20)	(n = 20)	Repeated Measures ANOVA			Student’s t-test
	mean ± SEM	mean ± SEM	mean ± SEM	F(2,38)	p-values	Cohen’s f	p-values
Delta	0.22 ± 0.21	0.15 ± 0.28	0.07 ± 0.34	1.452	0.243	0.093	0.40	0.13	0.37
Theta	0.26 ± 0.24	0.23 ± 0.26	0.08 ± 0.27	4.443	0.016*	0.163	0.04*	0.03*	0.53
Alpha	0.3 ± 0.29	0.28 ± 0.30	0.14 ± 0.29	3.841	0.027*	0.212	0.03*	0.04*	0.70
SMR	0.28 ± 0.28	0.25 ± 0.29	0.14 ± 0.27	1.920	0.156	0.196	0.14	0.12	0.67
Beta	0.15 ± 0.18	0.14 ± 0.21	0.04 ± 0.2	3.052	0.059*	0.074	0.06*	0.05*	0.79

Abbreviations: SMR, sensorimotor; SEM, Standard Error Mean. Note: *Significance at p < 0.05.