The world's first heart rate training treadmill was born in Finland from 65438 to 0969. Installing heart rate monitoring on treadmill is a great pioneering work in the world, which points out the direction for the future development of fitness equipment in the world. Why is it so important? Heart rate is the best index of human body state during exercise. In Europe and America, it is a very popular concept to monitor heart rate, reasonably control one's exercise intensity and exercise scientifically, and heart rate fitness has also become a very important fitness index. At present, only a few athletes in China are aware of monitoring their exercise intensity. Controlling your exercise heart rate within a reasonable target value can easily achieve the effect of losing weight and avoid the injury caused by exercise transition. And more importantly, exercise can exercise people's cardiopulmonary function, and long-term moderate exercise can reduce the occurrence of various diseases.