Back to Course PROTECT YOUR BACK WORKOUT CEC 0% Complete 0/0 Steps Introduction CEC How the Core Spine Works CEC How to Brace Your Core CEC Phase I CEC Phase II A CEC Phase II B CEC Warm Up CEC Cool Down CEC Back Breakers CEC PROTECT YOUR BACK WORKOUT CEC Introduction CEC Lesson 1 of 9 In Progress Next→ Introduction CEC