Basically, these three kinds of boxing are used more. They all take the waist as the axis, and the waist drives the shoulders, and the shoulders drive the fists, and cooperate with the legs to concentrate on one point.

However, without the training of martial arts itself, it is a castle in the air, which is no different from putting on a show.

Physical quality, psychological quality, conscious response, etc. Without training, even if you master three boxing moves alone, it is difficult to use them in actual combat.

It's a gimmick to say self-defense or exemption. Even if you train some fighting skills, you won't see obvious effects in any martial arts for a few years. There is really something to do.

So don't expect self-defense to be enough to exercise and improve your psychological and physical quality.