There are certain benefits of tying sandbags on the legs, this exercise can mainly play the following exercise effect: 1, can make the muscles of the lower limbs to get more strength exercise, when running with weight, the lower limbs need to use more strength to lift the whole lower limbs and step forward. In this process, the muscles of the lower limbs, especially the muscles of the thighs, will play a very good exercise. 2. This exercise can effectively increase the endurance of patients, especially the endurance of anaerobic breathing. Such patients do weighted running, because it will cause more pressure on the entire body’s motor system and circulatory system, continuous exercise, it will effectively enhance the patient’s endurance. 3, after doing this kind of exercise, it will make the patient walk more smoothly, which is usually called the lower plate more stable. Although there are many benefits to doing the above exercises, there are some patients who are not suitable. For example, patients with back-related diseases or patients with knee-related joint diseases are not suitable for such exercises. In addition to this, patients with a weaker constitution are also not recommended to do such exercises.