What does the fixator muscle do?

Fixator muscles stabilize specific portions of the body while allowing other parts to move. They are a type of synergist muscle, meaning they work together with another muscle to produce coordinated movement. Fixator muscles often work in pairs to ensure stability while enabling movement.

Examples

- Gluteus maximus: a large muscle at the back of the hip that helps extend and stabilize the hip. It is important for standing and walking.

- Erector spinae: a group of muscles along the spine. Along with the abdominal muscles, they provide stability to the trunk.

- Sartorius: a long, thin muscle on the front of the thigh that helps flex and rotate the hip and knee. It also helps stabilize the knee.

- Trapezius: a large muscle at the back of the neck and upper back that assists with shoulder movement and head turning. It also helps to stabilize the scapulae.