Of course, not many of us would say no to some ab definition, however it is far more important to focus on the key roles of the abdominal muscles, which is to provide our spine with stability and support, as well as acting as a protective shield to all of our vital organs. This quick core blast will cover our entire abdominal muscle group: – Transversus Abdominis – Internal Obliques – External Obliques – Rectus Abdominus