Vastus Medialis is the quadriceps muscle on the inside of the knee. The portion of the muscle just above the knee is known as VMO (vastus medialis oblique). This muscle is particularly importantfor stabilising the knee joint. It is often weakened following injury.
- Origin: Intertrochanteric line (between the greater and lesser trochanters of the femur).
Medial lip of the linea aspera 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 upstairs. - Example strengthening exercises: Knee extension with a rehab band.
Squats. - Example stretches: Standing quad stretch.
Laying quad stretch.