What characteristic best describes synergistic muscle action?

Synergistic muscle action refers to the process by which muscles work together to create a specific movement or support a primary action. The characteristic that best describes this interaction is facilitating the main action. When synergistic muscles activate, they support the primary mover, often by stabilizing joints or assisting with the force needed to perform a movement.

For instance, during a squat, while the quadriceps act as the primary movers, the hamstrings and gluteus maximus engage as synergists to help control the motion and enhance stability, thereby facilitating the action of squatting. This collaboration among muscles ensures that movements are smoother and more efficient, reducing the risk of injury and improving overall performance.