It's designed to promote relaxation and ease muscle tension, rather than deeply penetrating the muscles like in deep tissue massage. https://aibixx1.com/%EB%A7%88%EC%82%AC%EC%A7%80-%EC%98%A4%EC%9D%BC%EC%9D%98-%EB%AA%A8%EB%93%A0-%EA%B2%83-%EC%84%A0%ED%83%9D%EA%B3%BC-%ED%99%9C%EC%9A%A9%EB%B2%95/