Source: https://www.researchgate.net/profile/Fabien_Dal_Maso2/publication/281184555_Involvement_of_primary_motor_cortex_in_the_regulation_of_antagonist_muscle_coactivation_Study_of_the_alteration_of_cortical_oscillations_and_corticomuscular_interactions/links/560aa9ce08ae840a08d64df4/Involvement-of-primary-motor-cortex-in-the-regulation-of-antagonist-muscle-coactivation-Study-of-the-alteration-of-cortical-oscillations-and-corticomuscular-interactions.pdf