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Part (A) proximal hamstring origin. (B) Type I (‘high-strain’) hamstring injuries mainly occur within the long head of the biceps and typically involve the proximal muscle-tendon junction. (C) Type II (stretching) injuries typically occur close to the ischial tuberosity and affect the proximal free tendon of semimembranosus, reproduced with permission from Askling C, Schache A. Brukner & Khan's clinical sports medicine, Chapter 31: posterior thigh pain.89
