In the first 48 hours after muscle and tendon injury, cold compress should be applied to the injured part, and hot compress, massage and daub should be started after 48 hours. During the period of muscle tendon injury, you need to rest and can't exercise. After 4-6 weeks of recovery, the exercise load should be gradually increased.

There is quadriceps in front of thigh muscle, and sartorius muscle and adductor muscle in it. Biceps femoris is a tendon group spanning the knee joint, which is mainly responsible for controlling knee joint bending and thigh stretching. It is located at the back of thigh and has two heads, one is long and the other is short. Its basic function is to bend the calf backwards. Starting point: long head: ischial tubercle, short head: thick femur.

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Tendon injury: muscle fracture caused by external force is called muscle fracture, and tendon fracture is called tendon fracture. Long-term repeated minor injuries or wear lead to long-term rupture of tendon, which is called spontaneous rupture of tendon.

The biceps brachii is located in the front of the upper arm and has two starting points: the long head starts from the glenoid tuberosity of the scapula, passes through the shoulder joint capsule, and passes through the humerus and the intertubercular groove. The short head starts from the coracoid process of the scapula. Both ends move down to act as abdominal muscles, and then continue to be the radial tubercle where the tendon stops at the proximal end of the radius, and the medial side moves to the deep fascia of the anterior wall, which is called the biceps brachii aponeurosis. Its main function is to make the front wall rotate outwards and bend the elbow.

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