hamstring is the muscle group on the back of the thigh, mainly including semi-tendons, semi-membrane muscle , biceps femoral . The biceps femoral is divided into long biceps femoral head and short biceps femoral head. Its main function of contraction is knee flexion and hip extension, which is an important dynamic stable structure to maintain the stability of knee joint, especially to prevent excessive forward movement of the tibia.
Hamstring strain is common in sprinting, long-distance running, long jump , badminton, etc. It is clinically manifested as local tenderness and pain on the back of the thigh and the stop of the ischial tuberculosis, which may feel tearing and radiating downwards. It may also occur local swelling and subcutaneous ecchymosis. If it is a complete break, it may touch the depression in the local area. The resistance knee bending test can clarify the tenderness point, that is, the injury site. Treatment methods include rest, braking, cold compress, local pressure bandage, and symptomatic treatment during the acute period. After the condition is stable, physical therapy can be added to gradually exercise. At the same time, some physical therapy treatments can be combined with some physical therapy treatments, such as acupuncture, massage, etc.
