Coaches who have never participated in training and have not obtained any certificates should first attend the aerobics instructor training courses organized by local aerobics authorities below the first level, because the graded training of aerobics instructors can systematically learn the basic knowledge, common sense and theory of teaching, and design and teach the basic skills of fitness classes. However, if there is no local aerobics instructor training class, you can also directly participate in the national aerobics instructor training class (the class is mainly national).