Fig. 6.

Pooled analysis: effects of elbow joint moment on coherence between a EDC–FDS and b FDS–FPB. The dashed horizontal line denotes the upper 95 % confidence limit based on the assumption of independence. a EDC–F8DS: biceps brachii activation (i.e., elbow flexion moment) visibly reduced the coherence values across β- and γ-bands (see arrow). b FDS–FPB: a significant reduction in coherence value in the α- and β-bands was observed (see arrow). A noticeable decrease in the magnitude of the cumulant density estimate is observed under biceps brachii activation, while the reduction was not as significant under triceps brachii activation