Exercise bikes generally have magnetic wheels, and exercise bikes are generally equipped with heart rate tests. Exercise bike is called "power bike" in the field of sports science, which can be divided into vertical and back-mounted (also known as horizontal) exercise bikes. It can adjust the intensity (strength) during exercise and achieve the effect of fitness, so people call it exercise bike. Aerobic fitness equipment is a typical simulated outdoor exercise, also called cardiopulmonary training equipment. Mainly through long-term, moderate-intensity physical exercise, it can promote cardiovascular exercise, speed up metabolism, enhance the function of heart and lung, and thus improve the physical fitness of the body.