How to practice if you can't run?

Starting from the basics, take time out to train running every day, but pay attention to the methods:

1. Pay attention to the swing arm, and actively press down when raising the arm (although contradictory, but scientific).

2. Pay attention to breathing, three-step breathing, and you can use four-step breathing or five-step breathing at a certain time.

When using the above methods, we should pay attention to forming habits and completing actions naturally. Running can be slow, but you must not stop.

I don't write very well according to my own experience. Please forgive me. I hope you can adopt it!