Abstract
The present study used coherence and directionality analyses to explore whether the motor cortex contributes to plantar flexor muscle activity during the stance phase and push-off phase during gait. Subjects walked on a treadmill, while EEG over the leg motorcortex area and EMG from the medial gastrocnemius and soleus muscles was recorded. Corticomuscular and intermuscular coherence were calculated from pair-wise recordings. Significant EEG-EMG and EMG-EMG coherence in the beta and gamma frequency bands was found throughout the stance phase with the largest coherence towards push-off. Analysis of directionality revealed that EEG activity preceded EMG activity throughout the stance phase until the time of push-off. These findings suggest that the motor cortex contributes to ankle plantar flexor muscle activity and forward propulsion during gait.
Originalsprog | Engelsk |
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Tidsskrift | Journal of Motor Behavior |
Vol/bind | 51 |
Udgave nummer | 6 |
Sider (fra-til) | 668-680 |
Antal sider | 13 |
ISSN | 0022-2895 |
DOI | |
Status | Udgivet - 2019 |
Bibliografisk note
CURIS 2019 NEXS 028Emneord
- Det Natur- og Biovidenskabelige Fakultet