People with a fitness foundation can pass professional personal trainer certificate training institutions, which only carry out certificate training, and the training content revolves around the content of certificate examination. Because certificate training only teaches the basic knowledge of fitness coaches, it is suitable for experienced old coaches. Take the national vocational certificate as an example, the training time is 7 days. The specific cost mainly depends on the tuition fees of various institutions with national service certificate assessment qualifications. In the corresponding fitness instructor training institutions, you need to master the advanced core skills required by fitness instructors from basic theoretical knowledge to basic practice before you can take the certificate examination.