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 in the right amount during the recovery process to ensure that the many obstacles 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 conservative surgical treatment, varying degrees of braking are unavoidable. Long-term braking so that 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 a significant contracture phenomenon, in the process of joint movement, 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 tissue interstices, thus producing a “glue” effect and forming extensive adhesions in the tissue. 2, injury-related joint 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, a long time braking seriously impede the metabolic function of cartilage, which leads to cartilage atrophy, accelerated degeneration, in the future normal activities. 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 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 (reduced circulating blood volume, 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 decline, such a comprehensive system-wide functional degeneration, for frail and Older people in particular have a horrible killing power. 5, heart factors: long-term social isolation on the patient’s psychological pressure is also not negligible aspects. 6.Economic factors: The consequences of being cut off from economic resources in this era are very serious. In a word, after sports trauma, long-term braking will have a huge impact on the patient, and even excessive local braking may cause serious consequences, so we should use scientific methods and apply rehabilitation training to the patient’s injury in a timely and appropriate manner, and strive for the patient to return to society as soon as possible.