1. Lying in bed and pedaling a bike in the air is a static exercise method, which mainly relies on its own weight and the strength of abdominal muscles to exercise abdominal muscles, and can also exercise leg muscles. Rotation is a dynamic exercise method. By adjusting the resistance and speed, you can exercise all the muscles, especially the leg muscles.

2. Spinning bike needs high balance and coordination ability, and improper operation will lead to falling or injury.