Sartorius Muscle

Sartorius Muscle

The Sartorius is a two joint muscle and so is weak when the knee is flexed and the hip is flexed at the same time. It works better during single movements.

Origin : Area between the ASIS (Anterior Superior Iliac Spine) and AIIS (Anterior Inferior Iliac Spine).  

Insertion : Anterior part of the medial condyle of the tibia.  

Actions : Flexion of the hip.
Flexion of the knee.
External rotation of the hip as it flexes the hip and knee.

Innervation : Femoral nerve.  

Daily uses : Sitting in a cross-legged position.  

Example strengthening exercises : Standing hip flexion using resistance band.
Isometric hip flexion.  

Example stretches : Hip flexor stretch.
Laying quadricep stretch.
Standing quadricep stretch.