A little bit of information about the Hamstring muscle

By Molly Ardren

The Hamstring is located in the posterior side of the body

What muscles make up the Hamstring?

  • Biceps Femoris

The insertion is the head of the Fibula

  • Semimembranosus

The insertion is the Tibia

  • Semitendinosus

The insertion is also the Tibia

The origins

The Bicep Femoris, Semimembranosus and the Semitendinosus all have the same origin being the ischium. However, the short head of the biceps femoris is half way down the posterior surface of the femur.
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  • The joint that crosses the hamstring is the knee and the hip (shown in the picture above).
  • At this joint, the actions that are produced is both flexion and the knee and also extension at the hip. (shown in the pictures below).
  • The joint action allows simple everyday movements such as e.g walking to work.
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Flexion at the Knee

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Extension at the Hip