Vastus Intermedius
Vastus Intermedius is located deep in the thigh underneath the Rectus Femoris muscle.
Origin
- Anterior and lateral surfaces of the shaft of the femur.
Insertion
- Patella via the quadriceps tendon and then the tibial tuberosity via the patella tendon.
Actions
- Knee extension.
Innervation
- Femoral nerve.
Daily uses
- Cycling.
- Walking up stairs.
Example exercises
- Knee extension machine.
- Leg press machine.
- Squats.
Example stretches
- Standing quadriceps stretch.
- Laying quadricep stretch.
Related injuries
- Quad strain.
- Contusion.
Related muscles
- Vastus medialis.
- Vastus lateralis.
- Rectus femoris.
