With the continuous upgrading of transportation, people have less and less time to walk, resulting in more and more people apparently do not exercise enough, and the lack of exercise for a long time is likely to cause a variety of diseases, such as hypertension, diabetes, cardiovascular disease, some cancers (such as rectal cancer), etc.. Therefore, in order to achieve the purpose of fitness and disease prevention, various forms of exercise are being carried out in full swing, and various fitness clubs abound. As one of the basic forms of human activity, walking is once again receiving a lot of attention. Walking is the most convenient and safe exercise for people of all ages, genders and health conditions, especially for the old and frail. In addition, human beings have evolved in such a way that their body structure is suitable for walking. The World Health Organization’s health motto for the 21st century clearly states that “the best exercise is walking”. The benefits of walking fitness In China, there is a folk saying that “walking is the ancestor of a hundred exercises” and “walk a hundred steps a day and live to ninety-nine”. In ancient and modern times, there are many examples of celebrities who insist on walking to strengthen their bodies. Song Dynasty literati Su Dongpo’s recipe for fitness is “to walk as a car, walking free”; Founding Father Nie Rongzhen insisted on walking at the age of 93; French philosopher Rousseau said: “Walk, evoke and inspire my thoughts.” Although walking is the basic ability of human survival, but also has a very good fitness effect. Walking strengthens the muscles, strengthens the legs and feet, makes the joints flexible, and promotes blood circulation and metabolism. Feet are the foundation of the human body, supporting the weight of the human body “pillar”, people have feet as if the tree has roots, the tree withered root first exhausted, people old feet first decline. Walking time and distance varies from person to person, the best morning and evening walk, you can walk slowly, you can also walk fast or alternate between slow and fast walking, you can also walk and run alternately.