This action can tighten the hips and shape the thigh lines. There are also prone kicks, side kicks and so on. There is also a similar action "Little Swallow" which can relieve back pain, and it is also a prone position action. However, the above actions are recommended to be done on a yoga mat or a hard bed board, otherwise it will be counterproductive. All yoga poses or fitness exercises need to know the essentials and take protective measures before trying!