Oscillatory Corticospinal Activity during Static Contraction of Ankle Muscles Is Reduced in Healthy Old versus Young Adults

Figure 3

Raw EEG and EMG traces, autospectra, and coherence results from a single young subject. EEG from Cz (a), EMG from proximal (b), and distal (c) ends of the anterior tibial muscle (TA_prox and TA_dist, resp.); autospectra for Cz (d), TA_prox (e), TA_dist (f); and coherence for Cz-TA_prox (g), Cz-TA_dist (h), and TA_prox-TA_dist (i) during static dorsiflexion. Dashed lines on coherence plots indicate upper 95% confidence interval limits.

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