A dragging gait of the lower extremities is a clinical manifestation of corticospinal tract lesions in gait abnormalities. In corticospinal tract lesions, spastic hemiplegic gait is a unilateral lesion. The upper extremity of the diseased side is usually in a flexed and inward position, with the waist tilted to the healthy side, and the lower extremity is straight and externally rotated, with outward forward swinging to compensate for the weakness of hip and knee flexors and ankle dorsiflexors. What are the prevention methods of lower limb dragging gait? 1. Regular physical examination is an important measure to prevent stroke and hemiplegia. The families of many stroke patients are often surprised because the patient never sees a doctor or takes medication, and they always thought he or she was in good health, but never expected to have a stroke all of a sudden. In fact, health is only a delusion of the patient and family members. Stroke patients often have risk factors for stroke without knowing it. If these people can detect the disease early and take effective treatment measures, the stroke can be prevented. Therefore, for people aged 40 or older, especially those with high blood pressure, diabetes or a family history of stroke, regular physical examinations, early detection and early treatment of risk factors for stroke can prevent the occurrence of stroke. 2.Strengthening physical exercise can help prevent hemiplegia (1)Physical exercise can enhance physical fitness, improve the ability to resist diseases and slow down aging. (2) Physical exercise can enhance heart function, improve blood vessel elasticity, promote blood circulation throughout the body, and increase blood flow to the brain. (3) Physical exercise can lower blood pressure, dilate blood vessels, accelerate blood flow, and reduce blood viscosity and platelet aggregation, which can reduce thrombosis. (4) Physical exercise can promote lipid metabolism, increase the content of high-density lipoprotein in the blood, which can prevent atherosclerosis. Long-term exercise can reduce body weight and prevent obesity.