The Deep Core
The deep front line as described by Tom Myers, creates our axial core. It is the deepest structure and is tasked with maintaining our core stability and alignment. It is within our deep core line that we find the physiology of our bandhas; it is the lift through the inner lines of the legs, the engagement in the pelvic floor and the diaphragm, and the space right up through the crown of the skull.
Further, this line shows us the functional mechanisms by which our breath and diaphragm provide an integral part of our core stability. This core connection is then continued through the wider fascial matrix in the transverse abdominus muscle. In this way, we can understand bandha both as an energetic practice, but also, as a traditional system for describing neutral core engagement.
This line more than any other is constructed of slow twitch fibres, made for endurance and subtlety. Although it is rare that this line initiates or controls movement, it is intermingled with all movement.