Posterior thigh
Biceps femoris
Flexes the knee and laterally rotates the flexed leg. the long head also extends the hip
- Origin
- Ischial tuberosity and linea aspera of the femur
- Insertion
- Head of the fibula
- Primary actions
- Flexes the knee and laterally rotates the flexed leg. the long head also extends the hip
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
Mobility focus
Valgus Knee (Knee Moving Inward)
Explore comfortable control of the foot, knee, and hip during squats, steps, landings, and single-leg tasks.
Open corrective movement strategy
Mobility 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