What are the differences between an antagonist and agonist muscles?

The difference between the antagonist and the agonist muscles is that they work in the opposite direction to complete the action. Agonist muscles respond in response to a voluntary or involuntary stimulus and create the movement necessary to complete the task. The antagonistic muscles counteract the agonist muscle and help move part of the body back on the spot after the event is completed.

The musculoskeletal system of the human body is six hundred muscles. The tendons attach the muscles to the bones, allow the muscles to move bones and give the joints their flexibility. The antagonist and agonist muscles work in pairs to achieve a wide range of movements and actions. However, muscles are not specifically an antagonist or agonist. The agonist always closes to start movement and the antagonist stretches and extends to allow movement. Returning part of the body to a normal position, before the Nist, who started the original movement, will have to become an antagonist to withdraw the original antagonistic muscles and return to normal placement.

There are common couples of antagonistic and agonistic muscles. At the top of the body, biceps and triceps work on the completion of the arm movement. Four and hamstrings in the upper leg work to help move the knee joint and perform exercises such as squats and extend legs. Other examples include pectoral and latissimus dorsi in the chest and back and trapezoids and the deltoid muscles of the upper back and shoulders.

Agonists are often referred to as the main mover. They start the contraction necessary to move the limb through the range of joint movement. Examples of agonists in action are biceps during the Bicepan curls and a quadruple muscle during the leg elevator.

Antagonists are typically reactionary. This means that they extend or stretch themselves to allow the agonist to complete the action. In the event that the biceps muscle that happens to the bicep ripple would be considered by triceps as an antagonistic muscle. HamstriNG becomes an antagonist when a quadruple contraction becomes a leg lift.

other types of muscles help antagonists and agonistic muscles to perform the necessary movements. Synergic muscles often help the agonist in performing initial movement inside the joint. Another type of muscle, fixator, helps to stabilize the surrounding structures during the movement of antagonistic and agonistic muscles.