Effective exercises to challenge your core muscles.
Your core is so much more than just flat abs or a six-pack.
There are four layers of muscle that make up the core and they all work together to allow you to move and breathe.
The core system needs to be worked as a whole to function effectively rather than just focusing on sit-ups that target one of the muscle groups.
This Ebook will give you effective exercises to work and challenge all muscles of the core system in an easy to use format.