Glute medius
The masseter acts as the antagonist.
Piriformis-- A muscle in the pelvic girdle that is closely associated with the sciatic nerve.
The ipsilateral antagonist of the right inferior oblique muscle is the right superior oblique muscle. The superior oblique muscle acts to depress and abduct the eye, while the inferior oblique muscle acts to elevate and abduct the eye.
The most effective piriformis myofascial release technique for relieving pain and tension is deep tissue massage combined with stretching exercises targeting the piriformis muscle.
The heart.
Piriformis
The piriformis originates at the anterior sacrum and inserts at the greater trochanter of the femur.
Piriformis syndrome is caused by the piriformis muscle compressing the sciatic nerve, leading to pain and discomfort in the buttocks and down one leg. This compression can be a result of muscle tightness, injury, overuse, or anatomical variations in the piriformis muscle. Physical activities that involve repetitive movements or sitting for prolonged periods can also contribute to the development of piriformis syndrome.
The antagonist to the obturator internus muscle is the gluteus maximus. While the obturator internus primarily functions to laterally rotate the hip, the gluteus maximus also contributes to hip extension and lateral rotation, but can act as an opposing force during certain movements. Additionally, the piriformis muscle can also be considered an antagonist, as it performs similar functions in hip rotation.
Piriformis
The piriformis muscle crosses the sciatic nerve in the buttock region. Compression or irritation of the sciatic nerve by the piriformis muscle can lead to sciatica symptoms like pain, tingling, or numbness in the buttock and down the leg.
antagonist muscle