Introduction The hamstring complex is made up of the long and short head of the biceps femoris, semitendinosus, and the semimembranosus.
The hamstring complex is made up of the long and short head of the biceps femoris, semitendinosus, and the semimembranosus. The three hamstring muscles originate from the ischial tuberosity. Most medial is the semitendinosus and biceps femoris complex.
The most lateral muscle is the origination of the semitendinosus. The role of the hamstring complex is to extend the hip and flex the knee. Chronic hamstring tendinopathy typically occurs just proximal or distal to the myotendinous junction of the long head the bicep.
Chronic overload of the hamstring origin during running can cause tendinopathy and partial proximal hamstring tears. Histologic samples of the hamstring tendon origin in patients diagnosed with chronic hamstring tendinopathy showed collagen disintegration, increased tendon vascularity, and no inflammatory cells. Origin of the hamstring complex Diagnosis Patients with hamstring tendinopathy complain of pain localized to the ischial tuberosity that can worsen with prolonged sitting or running.
Commonly confused with proximal hamstring tendinopathy is sciatic neuritis. Physical exam involves palpation of the ischial tuberosity for point tenderness. There are also special tests that aim at stretching the hamstring.
For example, providers can flex the hips to maximal flexion and then have the patient extend their knee. The tibia can be internally and externally rotated to better isolate each hamstring muscle during this maneuver. A positive test is pain at the ischial tuberosity.
If you are experiencing symptoms that may be related to chronic hamstring tendinopathy review, it is important to see a sports medicine physician. Early evaluation and treatment typically lead to better outcomes. Do not ignore pain or symptoms that are limiting your activity.
*This article is for educational purposes only and does not substitute for professional medical advice. Always consult a qualified healthcare provider.*
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