Posterior thigh
Semitendinosus
Extends the hip. flexes the knee. and medially rotates the flexed leg
- Origin
- Ischial tuberosity
- Insertion
- Medial proximal tibia through the pes anserinus
- Primary actions
- Extends the hip. flexes the knee. and medially rotates the flexed leg
Educational anatomy reference only. This page does not diagnose pain, injury, or movement limitations.
From anatomy to action
Explore the movement, not just the muscle.
A single muscle rarely explains a movement by itself. Use the related movement content to see how this anatomy may contribute, then choose a focused program when you want a complete progression.
Corrective movement strategies and exercises
Capacity focus
Feet Turn Out
Explore stance and ankle-foot options that make squatting and walking feel comfortable and stable.
Open corrective movement strategy
Capacity focus
Excessive Anterior Pelvic Tilt
Explore pelvic and trunk-control options without treating pelvic angle as a diagnosis or forcing a neutral position.
Open corrective movement strategy