The walking speed of adults is 1-2 m/s, which is 3.6-7.2 km/h, so the walking length unit of Uncle Wang here is kilometers per hour.

Introduction to walking:

Walking is one of the basic activities of human beings. It seems that the whole human body structure is designed for walking, which is recognized as the best exercise in the world.

Walking is the only exercise that can be persisted for life, and it is a safe and moderate exercise.

There are many ways to walk. No matter which way you go, just like culture and art, there is no fixed model. Even the physical condition and hobbies of the same person often change, so "everything is fate." This "fate" is constant in walking-perseverance; Orderly-step by step; Moderate-moderate exercise.

Walking fitness has long been popular abroad. In the United States, on average, one in four people takes part in walking exercise, and they do it at least two or three times a week. Some institutions in Japan even reward employees for walking and exercising. Some Europeans like to walk in the rain and enjoy fresh air and negative oxygen ions called "air vitamins".