Patients appear legs and feet without strength, generally common causes are mainly the following: a. After strenuous exercise can cause a large amount of lactic acid and metabolic waste accumulation in the legs and feet, and cause local soreness, pain and other symptoms, manifested as legs and feet without strength. At this time, patients can fully rest, local massage physiotherapy, hot amulet package external compresses, moxibustion strips fumigation, promote the legs and feet out of the lactic acid and metabolic waste absorbed faster, can improve the legs and feet without strength symptoms. Second, elderly patients due to insufficient energy intake, will cause the body lack of sufficient nutrient supply, and the lower limb muscle atrophy, after the activity of the symptoms of fatigue, weakness. Patients need to strengthen energy supply, eat more high-protein, high-vitamin, high-calorie food, and exercise the leg and foot muscles to avoid atrophy, which can reduce the symptoms of no strength in legs and feet.