The content of the national fitness instructor's professional qualification certificate examination is limited by the results. For newcomers, it is necessary to take the primary certificate exam. The contents of the primary certificate examination are as follows: the certificate examination is generally in three parts: theoretical knowledge, practical skills and physical fitness test. Theoretical knowledge: the theoretical knowledge that fitness coaches need to master, including sports nutrition, sports anatomy, sports physiology, sports planning principles, health and fitness, etc. These theoretical knowledge are the basis of learning advanced skills, especially sports anatomy, and also the basic knowledge and practical skills of learning sports rehabilitation skills in the later stage: resistance training techniques in the form of topic selection (12 muscles), muscles: quadriceps femoris, gluteus maximus, biceps femoris, gastrocnemius, trapezius (upper and lower bundles), erector spinae, latissimus dorsi, rectus abdominis and so on. Resistance forms: load-bearing equipment, free weight (barbells, dumbbells) and self-weight, which are completed by the equipment designated by the evaluator. Second, stretching exercises (13 muscles) muscles: quadriceps femoris, gluteus maximus, biceps femoris, gastrocnemius, iliopsoas, trapezius (upper, middle and lower bundles), erector spinae, latissimus dorsi, rectus abdominis (without passive stretching), pectoralis major (upper, middle and lower bundles), and. Exercise forms: active stretching and passive stretching. Aerobic exercise form: Aerobic exercise equipment (treadmill, elliptical machine, stepping machine, stationary bicycle) physical fitness test: divided into men's group and women's group. M: The test items are qualified. The standard sitting posture stretches for 5 seconds, 40 push-ups and 60 squats. Female: The test items are qualified. Stretch for 5 seconds in the standard sitting position, and push-ups 15 times.