After a sports injury, we usually choose one of two options: conservative or surgical treatment. Regardless of the response, rehabilitation should be introduced at the right time and at the right level during the recovery process to ensure that the many impairments caused by braking are avoided or mitigated as much as possible. Regardless of the option, the initial goal is to reconstruct the anatomical structure, and after surgery/conservative treatment, varying degrees of braking are unavoidable. Long-term braking makes the relevant joints continue to be in a relatively static state, the muscles, tendons, ligaments, joint capsule, skin and other soft tissues around the joint will produce obvious contracture phenomenon, in the process of joint activity, the soft tissue in the direction of joint movement antagonism will produce a much higher than normal level of resistance, when the resistance exceeds the maximum force of the active muscle that produces the movement, the action can not be completed. At the same time, due to bleeding in the injury, a large number of fibroblasts are released into the interstitial space, thus producing a “glue” effect and forming extensive adhesions in the tissue. In addition, as a result of braking, a large number of transverse bonds are created between the free sliding myofilaments of the myogenic fibers, which prevent them from sliding, thus forming adhesions within the muscle. During the whole braking process, contractures and adhesions occur simultaneously and act together, and a slight shortage of training time will produce serious ROM disorders, which sows the seeds of difficulties for training. 2, damage related to the joint belongs to the cartilage quality decline: articular cartilage nutrition mainly from the joint fluid, in the normal movement, the cartilage surface between the mutual sliding, extrusion will make the cartilage like a sponge absorbing water in its internal and external environment to form material exchange, so as to achieve its nutritional process, long time braking seriously impede the metabolic function of cartilage, which in turn leads to cartilage atrophy, degeneration accelerated, in the future normal activities, the Will accelerate the rate of occurrence of degenerative osteoarthritis and aggravate its severity. 3, affect the healing of damaged tissue: not conducive to tissue repair. Whether it is bone tissue or other soft tissue, its healing cannot be achieved without proper stress. Take the joint ligament as an example: the healing of the ligament (external fixation conservative treatment or surgical reconstruction) will appear 2 weeks after the disposal of obvious collagen fiber connection, about 6 weeks fiber connection has been more reliable, but at this time the fiber arrangement order is disordered, the strength is only close to the normal ligament stress level of about half, can not reach the normal function of the treatment is declared failure. 4, the whole body overall functional level decline: because the absolute brake can cause different degrees of respiratory system (lung capacity decline, pulmonary embolism, etc.), the circulatory system (circulating blood volume reduction, thrombosis, etc.), digestive system (loss of appetite, etc.) and other system functional degeneration, at the same time, in addition to the injury-related parts, the motor system will also have the overall functional level of decline, such a comprehensive system-wide functional degeneration, for the frail and Older people in particular have a horrific lethality. 5.Mind factor: the huge pressure on the patient’s psychology caused by the long-term separation from the society is also an aspect that cannot be ignored. 6.Economic factor: the consequences of cutting off the economic source in this era are very serious. In a word, after the sports trauma, the long-term braking will have a huge impact on the patient, and even the excessive local braking may cause serious consequences, so the patient’s injury should be rehabilitated in a scientific way, at the right time and in the right degree. Therefore, the rehabilitation training should be applied to the patient’s injury in a scientific way and at the right time, so that the patient can return to the society as soon as possible without being disabled.