Firstly, it can effectively increase the mobility of the ankle joint. If the patient has some injuries around the ankle joint, resulting in a gradual decrease in its mobility, in the process of recovery, it is necessary to do this kind of activity, which can effectively increase and restore the mobility of the ankle joint, and then prepare for the patient’s subsequent weight-bearing activities on the ground. Secondly, it can effectively strengthen the muscles around the ankle joint, effectively exercise the muscles of the foot and calf, and then strengthen the muscles of the ankle joint, which can effectively support the lower limbs and prevent injuries during the patient’s weight-bearing activities on the ground. Thirdly, it can effectively enhance the flexibility and flexibility of the ankle joint, and play a very good exercise role for some tendons and ligaments around the ankle joint, thus enhancing the flexibility and agility of the ankle joint. Fourthly, it can effectively prevent the occurrence of deep vein thrombosis. In the process of turning the ankle joint, it can make the muscles in the lower leg continuously contract and stretch, which plays the role of a blood pump and accelerates the blood circulation in the lower limbs, thus preventing the occurrence of deep vein thrombosis.