Primary: only the muscle movements inside and outside the body, without feeling and breathing inside the body, that is, gymnastics.
Its effect is similar to running, swimming, belly dancing, equipment fitness and other modern fitness methods, basically just physical exercise. Nowadays, many yoga instructors have no time to feel the body because they move too fast, and they realize that they have become a veritable "gymnastics". Besides, they can't effectively guide students to take a deep breath. Most mobile yoga has this problem and basically stays at this level. Therefore, this non-Indian practice mode remains to be discussed. I think it is a retrogressive innovation and needs to be continued.
Intermediate level: the movements inside and outside the body are the main ones, but the coordination of feeling and breathing in the body is supplemented.
Classic hatha yoga, Yin yoga and other physical and mental correspondence, physical and mental care of the practice mode, so that practitioners have time to feel their own body quietly, can "clumsily" lift their throats, breathe again and again, so that students feel calm and happy, have a clear mind to deal with problems, reduce anxiety, and benefit the body and mind. Physical therapy has a good effect. "All diseases are born from the heart". Adjust your heart and make yourself naturally healthy, even if you are sick.