This is the largest and most posterior of the adductor group. It originates from the back of the pelvis and inserts along the length of the inside of the femur. A hole or "hiatus" in the distal region of its insertion allows passage of the femoral blood vessels.
Its posterior location means that it functions to adduct and extend the thigh backward. It is a synergist to the gluteus maximus, assisting it in back-bending postures such as urdhvadhanurasana. Tightness limits poses such as front splits. Weakness limits bakasana. Contraction of the adductor magnus accentuates moola bandha.
Adductor Magnus (ad-DUK-tor MAG-nus)
Anterior section: Ischiopubic ramus.
Posterior section: Ischial tuberosity.
1) Anterior section: Linea aspera on the back of middle third of the femur.
2) Posterior section: Medial epicondyle on inside of the distal femur above the knee joint.
Innervation & chakra illuminated
Anterior fibers: Obturator nerve (lumbar spinal nerves 2, 3 and 4).
Posterior fibers: Tibial portion of sciatic nerve (lumbar spinal nerves 3, 4 and 5).
Upper part of first, lower part of second.
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