Fixator

Definition

A fixator is a muscle that acts as a stabilizer of one part of the body during movement of another part. It prevents unwanted movements in a joint or assists in the action of an agonist muscle to ensure smooth, coordinated motion.

Related terms

Agonist:

An agonist is a muscle that primarily causes a specific movement when it contracts.

Antagonist:

An antagonist muscle works in opposition to the agonist, relaxing and lengthening to allow the movement to occur.

Synergist:

A synergist muscle helps the agonist work efficiently by stabilizing the nearby joints or adding extra force to the movement