What Is Fixator Muscle

A muscle that acts as a stabilizer of one part of the body during movement of another part.

What is a fixator muscle example?

The trapezius muscle can act as a fixator when the biceps is flexing the elbow joint. The abdominals can act as fixators to stabilise the body for hip and knee movements.

Why are fixator muscles important?

4. Fixator: The fixator in a movement is the muscle(s) that stabilises the origin of the agonist and the joint that the origin spans (moves over) in order to help the agonist function most effectively. In the bicep curl this would be the rotator cuff muscles, the ‘guardians of the shoulder joint’.