Take a personal fitness instructor as an example: the basic knowledge you need to master includes: sports anatomy, sports physiology, sports nutrition, leisure fitness test evaluation report, posture analysis and flexibility test, making a complete fitness plan, prevention and treatment of sports injuries, training arrangements for special people, sales process of personal trainers, maintenance and repair of equipment, physical training and teaching, and at least one or two exercises.

Even full-time and full-time teaching, it takes at least three months to really become a fitness instructor.

The tuition and living expenses after study, as well as your sportswear and other expenses add up to about 10000- 15000.

Are you ready for money, time and hardship?