Legs are not strong, can be exercised in several ways, as follows: First, self-weight training: patients in the initial stage, should be self-weight training, do not need to rely on external forces. You can squat against the wall, or you can squat with your own weight, which can enhance the strength of the leg muscles and improve the strength of the leg muscles. Patients should also increase the distance they walk in their daily lives to enhance muscle strength and power. Second, auxiliary external force: after the obvious improvement of the basic strength, you can auxiliary external force, such as elastic bands, sandbags, etc., so that the lower limb muscle strength quickly increased, the daily exercise time of not less than 60 minutes, in order to ensure that the leg muscles continue to grow. In addition, patients should also increase nutrition, especially the intake of high protein food, to promote the rapid growth of muscle and restore leg muscle strength.