Conditions for learning to be a fitness instructor: at least 17 years old, only love fitness. Learning a personal fitness instructor is generally through going to a fitness instructor training institution to participate in the study and obtain a fitness instructor certificate. A fitness instructor must have a fitness instructor qualification certificate. Now, no matter whether you are a fitness white or a fitness enthusiast with many years of fitness experience, you must have a fitness instructor qualification certificate if you want to become a fitness instructor. To obtain the qualification certificate of fitness instructor, you need to undergo professional fitness knowledge and skills training, and then conduct assessment. The examination content of fitness instructor qualification certificate can be divided into two aspects: theory and practice. You can get the national fitness instructor certificate, which is a certificate with high recognition in the gym at present.