Temporal Dynamics of Corticomuscular Coherence Reflects Alteration of the Central Mechanisms of Neural Motor Control in Post-Stroke Patients

The neural control of muscular activity during a voluntary movement implies continuous updating mix afferent and efferent information. Corticomuscular coherence (CMC) is powerful tool to explore the interactions between motor cortex muscles involved in realization. comparison temporal dynamics CMC healthy subjects post-stroke patients could provide new insights into question how agonist antagonist are controlled related performance active movements. We recorded scalp electroencephalography activity, electromyography signals from muscles, upper limb kinematics eight seventeen chronic twenty repeated elbow extensions explored whether modulation contribute function impairment. Concomitantly with alteration extension patients, dynamic analysis showed both highlighted that instantaneous was higher for compared controls acceleration phase movement. In relation theories, our findings suggest be online through integration sensorimotor Moreover, specific alterations reflect central command selectivity patients.