The core is the lumbo-pelvic-hip complex, thoracic and cervical spine. It is where the body's center of gravity is located and where all movement begins. The major muscles of the core are the diaphragm, pelvic floor muscles, multifidus, rectus abdominis, transversus abdominis, internal and external obliques, erector spinae, latissimus dorsi, gluteus maximus, and the trapezius. … Continue reading Tell me More About the Core