I was just wondering what everyone's thoughts are on the spinal engine? I will post what I've heard, but I really want to know everyone's thoughts on the subject.
Shawn, the arching of the lower back is part of core usage in the swing.
The "spine" is basically just a bony structure incapable of creating independent direct movement on its own, and like other bones is simply a rotational axis for the other surrounding muscles that expand and contract to create the actual movement. Thus as a very rudimentary example of the arching the back asked about...the spine is tracks the train runs on, but the core muscles are the actual "engine".You bring up a very good point to my question, is core usage and spinal engine different?