The role of pushing the back has the following points: 1, blood circulation, swelling and pain, to promote blood circulation, thereby reducing local inflammation, but also to accelerate the local dissipation of blood, to relieve the symptoms of swelling. 2, to relieve spasm, the role of Shu Jing Tongluo. Through appropriate pushing back techniques, can unblock the back meridians, stimulate the back acupuncture points, but also stimulate the local spasm of soft tissue, so that the spasm symptoms gradually alleviated. In addition to the above effects, it also has the effect of dispelling wind and dispersing cold.