What is the function of antagonist muscles?

Antagonist muscles play a crucial role in movement and overall muscle function. Their primary function is to oppose or reverse the actions of prime movers, which are the muscles responsible for initiating a movement. For example, when you perform a bicep curl, the biceps act as the prime mover, while the triceps serve as the antagonist. When the biceps contract to lift the weight, the triceps relax, allowing for smooth and controlled movement. This balance between the actions of the prime mover and the antagonist is essential for coordinated movement and is important in preventing injuries.

Having a good understanding of how antagonist muscles work can also help in designing exercise programs that promote balanced strength and flexibility, ensuring that no single group of muscles is overworked or under-supported during activity. This balance helps in maintaining joint stability and overall physical performance.