What is the function of the synergistic muscle?

The function of synergistic muscles is to assist the primary muscle during a specific movement, particularly in compound exercises where multiple joints and muscle groups are involved. While it's true that synergistic muscles do contribute to the overall movement, they are not considered the primary muscle; rather, they support and stabilize the primary muscle's actions to ensure effective and safe performance of the exercise. In this context, identifying synergistic muscles also highlights their importance in enhancing the efficiency of the main exercise being performed.

A better understanding of these roles helps trainers design more effective workout programs that address various aspects of muscle engagement, ensuring that all relevant muscle groups work harmoniously.