Antagonist Muscle Prefatigue Increases the Intracortical Communication between Contralateral Motor Cortices during Elbow Extension Contraction

Figure 4

Comparisons of the phase synchronization index between EEG-EEG signals during pre- and postfatigue elbow extension contractions. The phase synchronization index in the beta frequency band between EEG of FC3-C3 electrodes was significantly increased during postfatigue elbow extension contraction compared with that during prefatigue contraction. Data are mean ± SE. Significant differences are indicated by asterisks ().

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