Personal trainer's knowledge and skills: As a professional personal trainer, you should not only have the professional qualities of a professional personal trainer, but also master and obtain cpr certification for cardiopulmonary resuscitation, and have the basic knowledge and application skills of cpr. Master basic human science (including anatomy, physiology, nutrition, biomechanics, etc.). ). We should also master professional skills: physical fitness, pilates, sports injury and prevention, functionality, fighting, sports nutrition, postpartum recovery, and private education member management. Carry out fitness training, and then continue to learn special skills to improve their professional skills. Knowledge and skills that a group coach should possess: 1 Have some basic knowledge of private education; 2. Organizational ability: As the classroom becomes complicated, personality and individuality should be considered; 3. Course design ability, especially interaction ability and game design ability; 4, communication skills from one to many; 5. leadership; 6, emotional perception 7 the use of various gadgets.