1, general situation of fitness industry development, functional anatomy, exercise physiology, sports nutrition, sports rehabilitation and injury prevention, biomechanics and human movement analysis, introduction to core stability training, assessment and planning of healthy fitness, training principles and scheme design, rules and practice of senior personal trainer fitness training, posture analysis and flexibility test. 2. How to correct posture deviation, improve flexibility, training guide for special people-personal trainer, training method designed by personal trainer, training prescription for special people, nutrition for improving sports performance, comprehensive understanding of physical therapy related knowledge, such as posture analysis of body posture and muscle balance, flexibility test and how to enhance personal trainer's communication ability. 3. Professional skills of fitness competition 4. Basic sales of personal trainers: marketing and communication skills of personal trainers.