Rehabilitation exercises for knee sports injuries include toe pad exercises, leg lifting exercises, and exercises for joint mobility. 1. The purpose of toe-pad exercise is to exercise the muscles of the calf, that is, the gastrocnemius muscle of the calf, or the flounder muscle, and it can make the muscles of the thigh to be effectively stretched and lengthened. 2. Lift the leg movement, the patient can lie on the bed in a supine state, straighten the leg, slowly lift the leg until the angle between the leg and the bed is about 30 °, the time period of more than 10 seconds, each time you can do 10 to 20 times for a group, until the legs appear to be sore and swollen. 3. Joint mobility exercises, patients can lie on their backs, one side of the calf straightening the other side of the knee and knee flexion and knee joints as much as possible to let the thigh, close to the chest. Repeatedly practice the lower limbs twice, so that after rehabilitation training, can make some inflammation of the knee joint can be effectively restored, and can make the mobility of the knee joint can be greatly improved. Depending on the patient’s condition, you can also exercise under the guidance of a doctor, if you are not feeling well, please consult a doctor in time to avoid delaying your condition.