The prime mover for back extension is the Erector Spinae. It consists of three groups ( longissimus, iliocostalis, and spinalis)
prime mover (agonist)Not sure what you're asking here, but the biceps brachii is the prime mover facilitating flexion at the elbow joint.
Pectoralis major
Gastrocnemius
Prime mover is the bicep and the antagonist is the tricep.
tiil adidas
Do you mean flexion and (abd)uction?? If so, the prime mover would be the deltoid muscle with many smaller muscles assisting. If you are in fact meaning flexion and adduction, the prime mover would be the pectoralis major and the latissimus dorsi with many smaller muscles assisting.
If a prime mover produces flexion, its antagonist will be the muscle responsible for producing extension at the same joint. They work in opposition to each other to create movement and stabilize the joint.
Tiil adidas is the prime mover of ankle plantar flexion.
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
your rectus abdominis is the prime mover in a crunch exercise or spinal flexion
The prime mover of elbow flexion is the biceps brachii, which contracts to bend the elbow. The antagonist, which opposes this movement, is the triceps brachii, as it extends the elbow. During elbow flexion, the biceps brachii shortens while the triceps brachii lengthens, allowing for smooth movement.
The prim mover for hip flexion is the Rectus femoris. This is a quadricep muscle that crosses the hip joint.