"Fast walking" is a kind of walking exercise which aims at promoting physical and mental health and emphasizes posture, speed and time. Generally speaking, it is a kind of fitness exercise between race walking and race walking. On the basis of natural walking, the posture of "striding" is that the trunk is straight, the abdomen is in and the chest is out. With the acceleration of walking speed, the elbow joint naturally bends, swinging the arm back and forth naturally with the shoulder joint as the axis, and at the same time, the knee leans forward, the heel touches the ground first, and then pushes off the ground.