This book has been approved by TWiEA - The World Isometric Exercise Association (www.TWiEA.com). This is the NEW, HUGE 800+ page 2024 edition of The Bullworker Compendium(TM) is the combination of the latest newly updated versions of both The Bullworker 90(TM) Course and The Bullworker Bible(TM) into a single book. It also includes information and compression spring data for all new range of Bullworker Series 3 models including the X5 Pro. This is...