Ankle sprains, which are almost the most frequently seen in orthopedic emergencies, account for about 25% of injuries to the skeletal muscular system, the vast majority of which are lateral ligament injuries. Therefore, rehabilitation skills after ankle injuries are an important matter for everyone. The following is a detailed explanation of matters related to ankle injuries. Weight bearing time The weight bearing after ankle injury or surgery depends on the type of injury, surgical method, fracture site, fixation technique, and the impact of bone scab healing. After a non-weight-bearing area with small bone and cartilage injury: zero weight-bearing for two weeks, 25% – 50% weight-bearing for three to four weeks, 75% weight-bearing for four to six weeks, and 100% weight-bearing for six to eight weeks. The weight-bearing area bone and cartilage injury delayed weight-bearing time two to four weeks. Anklepump is the English name of this exercise, Ankle, is the ankle, ankle joint, commonly known as the ankle; pump, is the meaning of the pump. Take such a name is due to the role of this exercise. Simply put, through the movement of the ankle joint, it acts like a pump to promote blood circulation and lymphatic return to the lower limbs. This is essential for recovery after surgery! In addition to the injury itself, the surgery will also cause irritation to the surrounding tissues, which may require incision, drilling, repositioning, fixation, suturing, etc., and may also require the use of internal fixation plates and screws. In short the limb will swell after surgery due to impaired circulation caused by these traumatic irritations (anyone who has had surgery will know this phenomenon). In order to improve the circulation and help reduce the swelling of the lower limb, but also to be able to move the muscles of the lower leg and try to avoid muscle atrophy, it is necessary to perform the aforementioned “ankle pump” exercises. This exercise looks very simple, that is, active flexion and extension of the ankle joint. That is, lying or sitting on the bed without moving, thighs relaxed, and then slowly, but forcefully, within the limits of no pain or only a slight pain, as much as possible angle hook the toe (hook the foot upward, so that the toe towards themselves) and then step down (so that the toe down), pay attention to the maximum position to maintain about 10 seconds, the purpose is to allow the muscle to continue to contract. Repeatedly flex and extend the ankle joint in this way, preferably for 5 minutes every hour. As we flex and extend the ankle, the muscles of the lower leg contract and relax. In plantarflexion (toe down), the triceps muscle contracts to shorten and the tibialis anterior muscle relaxes to lengthen; in dorsiflexion (toe up), the tibialis anterior muscle contracts to shorten and the triceps muscle relaxes to lengthen. These two groups of corresponding muscles are like pumps that squeeze the blood and lymphatic fluid back in when they contract, and fresh blood flows in again when they relax. In this way, the whole leg does not have to move, just flexion and extension of the ankle can promote the circulation of the entire lower limb. 2.Forefoot inversion exercise: sitting position, foot followed by the ground inversion – back to the original position – inversion; 3.Forefoot valgus exercise: sitting position, foot followed by the ground valgus – back to the original position – valgus; 4.Ankle mobility training: 1）Sitting position flexed knee, the sole of the foot flat on the ground — lift the toes –(2) Sitting knee flexion, flat foot on the ground — lift the heel — flat foot on the ground 3) Supine N rope muscle contraction combined with ankle movement 4) Prone foot pedal / reverse skateboard, 5) ankle pedal (step on the wall): sitting position: training ankle dorsiflexion mobility. It is required not to feel pain. The load should be less than 1/4 of body weight Standing position: foot standing on the ankle pedal (450 angle), 5 minutes; gradually increase the angle and time / week. 5.Apparatus training: application of vertical stepper (sitting pedal) calf muscle strength exercises; bicycle or prone pedal (joint mobility > 15 degrees), joint mobility training; 6.Ankle joint assisted passive distraction manipulation, joint mobility is limited but confirmed as non-bony obstruction. III. Exercise training Start bicycle training 4 weeks after surgery; go up and down stairs after 8 weeks after surgery, walk uphill at 12 weeks; squat training – ankle pedal.