As the saying goes, the elderly start with their legs, and all parts of their bodies gradually decline, and every movement is slow and insensitive. Walking is just a physical activity that mainly exercises the muscles of lower limbs. "Take a hundred steps after a meal and live to ninety-nine", which shows that walking has been a means of longevity since ancient times. "Walk slowly, walk a few kilometers every day", which is simple and easy, moderate in exercise, and suitable for the elderly to exercise.

When walking, the muscles and joints of the lower limbs keep moving, which promotes the blood of the lower limbs to return to the heart and is beneficial to the blood circulation of the whole body; Walking can strengthen myocardial contraction. Increasing cardiac output can enhance cardiac function. When walking, breathing is accelerated and deepened, and the function of respiratory system is exercised and improved. Walking will increase the energy consumption of the human body, which is a weight loss exercise for obese people. For elderly mental workers, walking can increase cerebral blood flow and improve the nutrition of nerve cells, which is very beneficial to the thinking work of cerebral cortex.