what muscle acts as the agonist during internal rotation of the elbow
The triceps (all 3 heads) are fulfilling the role of agonist or prime mover during extension about the elbow. The anconeus muscle also acts in synergy with the triceps to contribute to elbow extension.he triceps (all 3 heads) are fulfilling the role of agonist or prime mover during extension about the elbow. The anconeus muscle also acts in synergy with the triceps to contribute to elbow extension.