Your leg muscles work together to help you walk up stairs.
Antagonist: Controls movement, opposite of prime mover Prime Mover: Main muscle that is directly responsible for movement Synergist: Aids in movement of muscle
The Diaphragm.
Primer Mover (agonist)
A prime mover is the muscle that has the most influence in one direction on the joint it acts on. For example the prime mover in extension of the forearm is the triceps.
Prime mover in medical terms means the muscle that is mainly responsible for a given motion.
An agonist (prime mover)
a prime mover is the main muscle that causes movement. In the case of the hip flexion, the prime mover would be the rectus femoris or the ilopsoas
antagonist
Quadricepts
The Gastrocnemius (calf muscle) is the primary mover. The Synergist (or assistor) muscle is the Soleus.
Prime mover is the bicep and the antagonist is the tricep.
The fixator of a muscle stabilizes the muscle at the point of origin.