Let’s get Hard Core! Train like an athlete in 30 action-packed minutes. A strong core, from your shoulders to your hips, will improve your athletic performance, will help prevent back pain and give you ripped abs! Motivating instructors and music will coach you through functional and integrated exercises using your body weight, weight plates, a towel and a platform - all to challenge you like never before. Reach Your Peak with Group Core! This statement is the description of the Group Core program and the basis for the information in the Group Core one-day initial instructor-training package. At the end of the training instructors will have the information necessary to complete the Assessment process, which will afford them the opportunity to teach the Group Core program at a licensed facility on an ongoing basis.