Core stability relates to the bodily region bounded by the abdominal wall, the pelvis, the lower back and the diaphragm , spinal extensor muscle and its ability to stabilise the body during movement. The main muscles involved include the transversus abdominis, the internal and external obliques, the quadratus lumborum and the diaphragm, errector spinae and multifidus lumbar. The diaphragm is the main muscle of breathing in the human and so breathing is important in providing the necessary core stability for moving and lifting. It is the action of these muscles contracting together upon the incompressible contents of the abdominal cavity (i.e. the internal organs or viscera) that provides support to the spine and pelvis during movement. Core stability is a body centre muscles around the naval region Typically, the core is associated with the body center of gravity, which is over the region of the second sacral vertebrae groups and stability is associated with isometric or static strength. In addition, it is the lumbar spine that is primarily responsible for posture and stability thus providing the strength needed for the stability especially utilized in dynamic sports.