According to my understanding, and I have tried both machines, I think there are three main points. First, the direction of motion is different from the principle of motion, and the motive is vertical motion. Swing machine is a seesaw vibration. In addition, the rhythm excitation is proved to be safe and effective by medical experiments. Many medical experts and scholars all over the world have done research on the effects of vertical rhythm on human body (I gave a book on rhythm therapy when I bought it, which is very detailed), and vertical rhythm has invention patents in China, the United States, German and other countries.

The second point: it is safe to use vertical motivation, and it will basically not cause sports injuries. It is developed according to the principle that gravity is vertical downward, which is most in line with the laws of nature. Swing machine has no scientific basis, and because the direction and intensity of external force are uncontrollable, it may cause sports injury to users with slightly poor physical fitness.

Every three points: the influence on the body, and the many influences of rhythm on the human body have medical research reports. But there is no data to explain the effect of swing board on human body.

These two machines belong to passive fitness equipment, and I have bought them both. Legal motives are more comfortable and effective.

The above views are purely for my personal use, and I hope they will be effective for you.

Please refer to Baidu for details.