There are more and more people who exercise, but not everyone has achieved results. The main reason is that many people do not really master the eight principles of fitness. Principle 1: Clear Exercise Purpose Only when you know the root of the disease can you prescribe the right medicine. If you don’t even know your training purpose, it is basically blind practice. Let’s say it in several situations: If you say: I like playing basketball and want to improve my flexibility and jumping ability through fitness. OK, you can try basic strength, bounce training, rope ladder, speed change, direction change and so on, as well as some soft items. If you say: I want to run a marathon. It Read More …