You can go to a fitness instructor training institution to take the national fitness instructor training exam. The training time for people with basic knowledge is relatively short, about a few weeks. If it is a zero-based exam, it will take a while for a fitness instructor to start learning basic fitness skills and master them. Fitness customers know that spending money on you is worth it. According to your own foundation, you can learn comprehensive fitness skills by choosing professional and authoritative training institutions to study. No matter how long you study, learning professional fitness skills is the last word.