The difference between a class teacher and a personal trainer.
I also work in a club, but the nature and development direction of my work are different.
Personal trainers provide one-on-one training guidance for health club members, but they need to pay extra. Most clubs spend an hour between 200 yuan and 400 yuan. Members have various requirements, such as losing weight/gaining muscle/improving physical fitness/rehabilitation training/postpartum recovery. This requires personal trainers to have a wide range of professional knowledge, which is related to health knowledge and is the object that personal trainers need to learn.
Sports coach is a one-to-many alternative, which provides free courses for members of health clubs. In China, most class coaches are part-time, and some large chain clubs will hire full-time coaches.