As long as you have learned and mastered the knowledge of fitness and fitness instructors, have excellent conditions (your body looks full of health and beauty) and successfully obtained the professional qualification certificate of fitness instructors after graduation, then I believe you are welcome to work as a fitness instructor or member consultant in any gym. As for whether it is a formal job, it doesn't matter now. Fitness instructors need to master many things, including: sports injury, sports nutrition, sports physiology, sports anatomy, aerobic training, stretching training, exercise prescription, rehabilitation training, resistance training, functional gadgets and so on. The skills of using gadgets and stretching and resistance training include: core training, exercise planning, physical fitness evaluation and training methods, functional resistance training, etc.

Sports rehabilitation knowledge and skills can really help students pay bills and improve the rate of continuing classes. There is a saying in the fitness field that "three points depend on exercise and seven points depend on eating", so sports nutrition is very important, including: sports nutrition countermeasures for different sports purposes, reducing fat, shaping body and increasing muscle, sports training for young sports students, sports nutrition countermeasures for different groups, weight control, sports nutrition support under special problems and reasonable selection of sports nutrition. To be a fitness instructor, besides teaching professional knowledge privately, sales skills are essential. Learning content should be based on practical exercises, interactive questions and answers, case studies, etc., to help you quickly improve your sales ability.