The common causes of sports injuries are inadequate preparation activities, incorrect technical movements, sports intensity and the amount of exercise exceeds the physical endurance range, the surrounding environment, venues, equipment adverse effects. Prevention of sports injuries will need to do the following: 1, reasonable arrangements for the amount of exercise, good warm-up exercises before exercise. Should be arranged according to their own physical conditions and the environment, climate and other circumstances of the exercise program and the amount of exercise, to avoid over-exercise, and good warm-up exercises, such as jogging and muscle, tendon, ligament stretching exercises before the athletics program, especially in cold climates should increase the content and time of warm-up exercises to avoid muscle stiffness and coordination caused by insufficient muscle, joint injuries. Exercise should also arrange intervals, arrange the distribution of physical fitness, etc. 2, strengthen the muscle strength and proprioceptive training of injury-prone parts. Such as holding a class of sports (table tennis, badminton and tennis, etc.) focus on muscle training around the shoulder joint, the three major ball projects pay attention to lower limb strength and core (around the spine muscle group) strength training, balance and proprioceptive training more help joint stability, prevent sprains and dislocations. 3, pay attention to self-protection, master the scientific method of exercise, as well as common injuries in sports, prevention knowledge and first aid methods and other content. 4, as far as possible to exclude the venue, equipment and other adverse effects. 5, pay attention to rest, adjust good physical and mental state. Exercise requires good physical fitness, before and after exercise should be sufficient rest, exercise in the mind to focus, relaxed. Poor rest before exercise, fatigue, and even training with injuries can easily lead to sports injuries, distractions or too much tension can easily lead to deformation of technical movements. 6, do a good job of protection in sports. Such as in the impulsive sports with good protective gear, ankle sprain-prone sports with good ankle protection or support, running, jumping, ball sports wear professional sports shoes. Wear professional sports shoes for running, jumping and ball games. Bring protective gear for the upper limbs for holding sports. Protect the knee: do not rely on protective gear rely on muscle life how to protect the knee joint, prevent knee injury? 1, pay attention to control the amount of exercise, if you feel pain in the knee to rest. 2, very important point, we want the knee joint does not hurt how to do? Not by protective gear to protect, but by muscle to protect, usually more muscle strength, and your responsiveness, sensitivity, etc.. 3, of course, also need to learn to pay attention to rest, too much practice is not good. 4, the knee in the cold winter more prone to injury, so winter and spring, should also pay attention to knee warmth. Opposing sports, how to avoid knee injury? For ordinary people, the movement must be within their capabilities. If you think the ball is out of reach, why are you reaching it? You have to go up to reach, then you can only be injured. Like those confrontational sports, people are obviously much fatter than you, you have to collide with him, then he will have to hit you fly. Most injuries are caused by how? Measure up and you will rarely get hurt. So, in terms of hardware, it is recommended to try to choose a professional sports field and sports equipment. Shoes are very important, which sports, try to use professional shoes, which will reduce the chance of injury. In terms of skills, try to follow the standard, professional movements to train, to reduce sports injuries. In addition, it is beneficial to do some warm-up exercises before exercise and some stretching and relaxation after exercise. In some ball sports, try to avoid twisting, especially inappropriate twisting. Spine, how to keep the spine healthy in running exercise? 1, pay attention to maintaining good body posture, in most cases to maintain the natural normal state of the various segments of the spine, especially the cervical and lumbar spine; 2, maintain the abdominal tension contraction state, so that the transversus abdominis can actively work to protect the lumbar spine; Third, strengthen the core muscle strength and endurance exercise, to prevent excessive twisting of the pelvis caused by sacroiliac joint problems. Professional help and treatment should be sought as early as possible if there is pain. In the above figure (left), you can clearly see the spine posture of good (maintain a continuous line of force) state, the body will be more efficient force, muscle work is also more in line with human mechanics; and bad spinal posture is the opposite, will improve the chances of injury.