Synergists
Of all the muscles contracting simulataneously, the one that is mainly responsible for producing a particular movement is called the prime mover for that movement. The other muscles that help in producing the movement are called synergists. As prime movers and synergists muscles at a joint contract, other muscles, called antagonist muscles, relax.When antagonist muscles contract, they produce a movement opposite to that of the prime movers and their synergist muscles. -- I wrote kind of alot so you can under stand it just in case if you don't :)
The agonist muscle
The agonist muscle
prime movers : muscle that initiate a particular movement synergism : muscles that have the same action of the prime mover antagonist : muscles that come into play to oppose a certain movement
Antagonists are muscles that work in the opposite direction from prime movers and synergists.
Assisting muscles are called synergists. They help the prime mover muscle by stabilizing the movement or helping with specific aspects of the motion.
jaw
. The prime movers are the core muscles which include the abdominals (rectus abdominus, the transverse abdominus and the internal and external obliques), the lumbo-pelvic-hip area, and the back (erector spinae, quadratus lumborum, paraspinals and the psoas major). Other muscles used in this movement are the glutes and quadriceps.
gluteus medius
your rectus abdominis is the prime mover in a crunch exercise or spinal flexion
femur
The prime movers in a golf swing are the muscles responsible for generating power and generating speed during the swing. These muscles include the muscles of the core, hips, and legs. They work together to transfer energy from the body to the club, resulting in a powerful and efficient swing.