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Table 4 Relationships between EEG outcomes and postural sway

From: Brain activity during dual-task standing in older adults

Measurement

Region

Condition

Sway path

Sway area

Sway velocity

Theta/beta ratio

AL

Dual-task cost

0.56*

0.52*

0.28

 

AR

 

0.34

0.57*

0.14

 

CL

 

0.39

0.46*

0.12

 

CR

 

0.52*

0.53*

0.18

 

PL

 

0.29

0.45*

0.05

 

PR

 

0.48*

0.44*

0.15

Alpha

AL

Dual-tasking

0.01

0.11

0.37*

 

AR

 

0.12

0.23

0.52*

 

CL

 

 − 0.11

0.11

0.42*

 

CR

 

 − 0.06

0.16

0.48*

 

PL

 

 − 0.08

0.15

0.39*

 

PR

 

 − 0.01

0.20

0.44*

  1. Correlations between EEG theta/beta and alpha power and postural sway during quiet standing, as well as beta and theta power and postural sway metrics during quiet standing and dual-tasking, did not reach statistical significance
  2. AL: Anterior left, AR: Anterior right, CL: Central left, CR: Central right, PL: Posterior left, PR: Posterior right; *p < 0.01