2. Intermediate fitness instructor (working continuously for more than 2 years after obtaining the primary vocational qualification certificate of fitness instructor);
3. Senior fitness instructor (who has worked continuously for more than 3 years after obtaining the intermediate vocational qualification certificate of fitness instructor);
4. Instruct division-level fitness instructors (those who have obtained the senior professional qualification certificate of fitness instructors and worked continuously for more than 5 years).
5. Fitness coach, whose most important duty is to help customers get healthy, needs scientific fitness guidance to get healthy. Therefore, a fitness instructor should have professional knowledge of human anatomy, physiology, medicine, nutrition and sports skills, in addition, he should also know psychology. Because coaches should be good at communicating with customers, accurately understand customer needs and provide help. Being well informed is the basic quality of a fitness instructor. For example, in order to achieve the best effect of fitness exercise, the coach should also be a "personal doctor", who should have certain health knowledge and understand the diet, work nature, sleep quality and so on of the members. Develop different training methods for different people. At the same time, however, fitness coaches only guide members' healthy exercise and give some guidance to some patients after illness or postoperative recovery, but they cannot replace doctors' therapeutic functions.