Martial Arts World Presents the Action Body Lifestyle. Supreme Grandmaster Y.K.Kim researched for decades to develop the Action Body Lifestyle. Martial Arts World exclusivelyteaches the Action Body Lifestyle to burn fat & Gain Muscle.-Track weekly progress with your Instructors in class-Stay connected with Martial Arts World News & Events-For exclusive use with the Action Body LifestyleWe look forward to helping you build the Action Body you have always dreamed of at Martial Arts World!