In one sentence, describe what the following article is about:

Don’t practice punching by throwing punch after punch. Instead, allow your muscles to breathe and relax after a punch. After the tiredness fades, practice again. Letting your muscles take a break will allow every punch to be your best punch. Practicing this way will teach your body only to have the best, complete punches, rather than ineffective and weak throws. Don’t worry about speed at first. It is more important to throw a proper punch. Think of it this way: If you can’t throw a proper punch, it doesn’t matter how fast the poor punch is.

Summary:
Take a break.