The primary muscles involved in hip extension are the gluteus maximus and the hamstrings. The primary muscles involved in knee flexion are the hamstrings and the gastrocnemius.
The supinator muscle is a muscle in the forearm that is not directly responsible for flexion or extension of the arm. Its primary function is to rotate the forearm in a movement called supination, where the palm faces up.
The three primary muscles active at the knee are the quadriceps, hamstrings, and gastrocnemius. The quadriceps, located at the front of the thigh, are responsible for knee extension. The hamstrings, located at the back of the thigh, facilitate knee flexion. The gastrocnemius, a calf muscle, also plays a role in knee flexion while assisting with ankle movements.
extensor digitorum longus, the extensor hallucus longus and the peroneus tertius muscles help dorsi flexiontibialis anterior
flexion, extension, abduction, adduction, hoizontal abduction/extention, internal rotation, external rotation, circumduction, adduction/flexion
The antagonists would be those muscles that cause knee flexion. Hamstrings (biceps femoris, semimembranosus, semitendonosis) are the primary knee flexors, and would thus be antagonists to knee extension.
The primary muscles involved in scapula depression are the lower trapezius and the latissimus dorsi.
The prime mover for knee flexion is biceps femoris, semimembranosus, and semitendinosus. The prime mover for knee extension is the Quadriceps â?? vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris
The primary muscles involved in a pull-up exercise are the latissimus dorsi (back muscles), biceps, and forearms.
The six primary movements that occur at the joints between body segments are flexion, extension, abduction, adduction, rotation, and circumduction. Flexion is the bending movement that decreases the angle between body parts, while extension is the opposite movement that increases the angle. Abduction is the movement away from the midline of the body, while adduction is the movement toward the midline. Rotation involves the turning or twisting movement, and circumduction is a combination of flexion, extension, abduction, and adduction that creates a circular movement.
The principal movements occurring at this joint are flexion and extension of the leg, but some rotation also occurs in the flexed position.Flexion and extension of the knee joint are very free movements.
The primary antagonist for hip flexion is the gluteus maximus, as it functions to extend the hip joint. Additionally, the hamstring muscles, particularly the semitendinosus, semimembranosus, and biceps femoris, also play a role in opposing hip flexion. When the hip flexors contract to lift the thigh, these muscles act to control or resist that movement.
Teo