Shoulder opening practice is a very important link in yoga posture practice, and the degree of opening is closely related to the correct practice of some postures. Especially in dorsiflexion, some practitioners start some difficult dorsiflexion movements without good shoulder and back control ability, such as wheeled and pigeon-king postures, which are completed by the softness of the lumbar spine. The harm to the practitioner's body is self-evident. Especially for the injury to the lumbar spine, the obvious performance is that the lumbar spine has a tingling sensation after practice.

Shoulder opening movement is a process from stiffness to softness. If we don't pay attention to the internal law, shoulder opening is also a process of injury. The frequent problem is that the waist and abdomen are not tied tightly, and the shoulders are opened with the waist of the spine. This practice is harmful to health. Long-term practice will cause the spine to be squeezed, worn and aged, which also violates the healthy and natural yoga practice principle.