1, seriously do the preparatory activities: before strenuous exercise should be seriously do the preparatory activities, both general preparatory activities and special preparatory activities. The greater the burden of sports and injury-prone parts, pay special attention to good preparatory activities, and do some strength, stretching exercises as appropriate. The whole set of preparatory activities should be gradual, the amount of preparatory activities, to the body feel warm, slightly sweating is appropriate. Preparation activities from the end of the formal exercise time to 1 – 4 minutes is appropriate, in the exercise if the interval is too long, are to make up for the preparation activities or make up for special preparation activities. 2, strengthen the injury-prone parts of the training: step by step to strengthen the injury-prone parts or relatively weak parts of the training, to improve their function, is a positive means of preventing sports injuries. For example, in order to prevent patella strain, can be used “standing pile” method to enhance the quadriceps and patella function; in order to prevent lumbar injury, in addition to strengthening the lumbar back muscle training, should also strengthen the abdominal muscle strength training, help prevent spinal hyperextension caused by lumbar injury; in order to prevent strains of the posterior femoral muscle group, to strengthen the strength and stretching exercises of the posterior femoral muscle group etc. 3, strengthen the protection and self-protection: each participant in physical exercise should master self-protection methods. For example, when the body loses balance, to immediately step forward or back to maintain body balance; when a person is about to fall, should immediately lower the head, bend the elbow group body, roll with the momentum, not straight arm support the ground; from the high jump, with the forefoot first landing after bending the knee, to enhance the cushioning effect. High-speed running needs to stop in a hurry, can not brake to stop, should slow down and stop, otherwise, ankle, knee, hip, waist and other joints will be seriously bruised. The human body from a high fall to the ground, you must pay attention to the legs bent knees together cushion after standing up, otherwise the ankle and knee joints will be affected by different degrees of impact. When landing weightless instability, first of all, the mind should remain calm and then quickly low elbow group body, with the back of the shoulder to the ground and the trend of rolling action, in order to abate the strong ground reaction force, do not straight arm support the ground and forced braking, otherwise it will cause upper limb or shoulder injury. Resistance to strong sports, such as basketball, soccer, handball, etc., in this kind of project sports, we should pay attention to a certain degree of upper limb abduction, and maintain the relative tension, in order to prevent sudden external sexual violence action, in addition, lower the center of gravity, strengthen the root is also a good self-protection method. Habitual injury-prone areas. Such as the dorsal side of the foot, the root of the thumb, etc., to such injury-prone parts, in addition to fully prepared activities, but also pay attention to the correct use of protective tape, such as ankle protection, finger protection, bandages, etc. Sports injury emergency treatment principles PRICE: 1, Protect (protection): bandages, casts or supports and other devices to protect the injured part to avoid further injury. 2, Rest (rest): stop the movement, the injury site to rest, to reduce further injury. 3.Ice (ice): reduce pain, reduce bleeding (break the pain cycle) to reduce the metabolic rate. 4, Compression (compression): reduce tissue fluid and blood leakage, reduce swelling. 5.Elevation (elevation): Promote blood return, reduce tissue fluid exudation, and reduce swelling. Seek medical attention promptly after emergency treatment!