This home study course utilizes cutting-edge theory and practical information developed by sport conditioning industry innovator Peter Twist to help you understand and apply the principles of stability and rotary power into your training design. The core is best developed with a focus on whole body closed kinetic chain stability and rotary power to create a center for movement and force transfer. For dynamic performance and injury prevention, your core stabilizes to allow powerful leg and arm actions, leads into turns, absorbs stopping actions and regulates balance. Using the Bosu® Balance Trainer, Medicine Ball,  Smart Toner™, Free Weights and a Stability ball. Includes: Workbook, Sport Core DVD, Online Quiz and Certificate.