In general fitness clubs, elliptical trainer is a very common cardiopulmonary fitness training tool, and it is also widely loved by users. It can be used safely by both young and old. It is not as violent as a spinning bike, nor as boring as an exercise bike. It feels like a space walk, so it is also called a space walker.
Advantages: The advantages of elliptical trainer are adjustable resistance, stretched body posture (except for the copycat version with seat), less possibility of sports injury, and low noise.
Limitations: The disadvantage is that the exercise function of muscle strength is relatively weak, and it is a pure body aerobic exercise equipment.