Let's get HARD CORE!  Train like an athlete in 30action-packed minutes.  A strong Core, form your shoulders to your hips, will improve your athletic performance, help prevent back pain, and give you ripped abs!  Expert coaching and motivating music will guide you through functional and integrated exercise using your body weigh, weigh plates, a towel, and a platform-all to challenge you like never before.  REACH YOUR PEAK WITH GROUP CORE!