Origin of Long Head: Ischial tuberosity and sacrotuberous ligament.
Origin of Short Head: Lateral side of the head of the Linea aspera, lateral supracondyle of femur, and lateral intermuscular septum.
Insertion: lateral side of the head of the fibula, lateral condyle of the tibia, and deep fascia on the lateral side of the leg.
Action: Flexes and laterally rotates the knee joint, and extends and assists with extension and lateral rotation of the hip joint.
Position: Lying prone, flex the knee 60°.
Rotation: Thigh laterally rotated.
Stabilise: On the sacrum.
Monitor: Apply pressure on the ankle in the direction of knee extension
Nerve Supply: Sciatic (tibial branch) - L4, L5, S1, S2.
Anterior: Bilateral 2cm from the midline, 2cm superior to the pubic symphysis
Posterior: Bilateral transverse process of L2.
Neuro-Vascular Reflex: Bilateral frontal eminences. Yuan Point: Bl64
Nutrition: Vit. A.