CKO Kickboxing founder Joseph Andreula's knowledge of exercise goes beyond creating effective workouts. It also helps guide the Fitness Standards Council, a nonprofit advisory panel of doctors and certified personal trainers, and provides the basis for the articles he’s published in Exercise for Men, Men's Health, and _Men's Fitness Magazine. But his true passion lies in the innovative fitness classes he created at CKO Kickboxing gyms. Since 1997, these gyms have housed Andreula’s exercise classes, which use basic kickboxing techniques to lead students toward powerful strength and greater endurance. In contrast to other kickboxing routines that have participants kick the air or invisible schoolyard bullies, students in CKO Kickboxing sessions strike hanging heavy bags to help them tone more muscle and burn up to 1,200 calories in a single class.