antagonist
The synergists.
synergist
An antagonist muscle reverses the action of a prime mover. When the prime mover contracts to produce a movement, the antagonist muscle relaxes to allow that movement to occur in the opposite direction. This coordination between prime movers and antagonists is essential for controlled and coordinated movement.
it's called a prime mover
latismus dorsi
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.
Antagonist: Controls movement, opposite of prime mover Prime Mover: Main muscle that is directly responsible for movement Synergist: Aids in movement of muscle
Prime mover is the bicep and the antagonist is the tricep.
The prime mover during sit-ups is the rectus abdominis muscle. This muscle, commonly referred to as the "abs," contracts to flex the spine, allowing the torso to lift towards the knees. Additionally, the hip flexors assist in the movement, but the rectus abdominis is the primary muscle responsible for the action.
Quadricepts
A prime mover, also known as an agonist, is the muscle primarily responsible for initiating and carrying out a specific movement, such as the biceps brachii during a bicep curl. In contrast, a synergist is a muscle that assists the prime mover by stabilizing the joint or helping with the movement, like the brachialis during the same curl. While the prime mover is the main actor in a movement, synergists support and enhance the action for smoother and more effective performance.
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.