Is a military style, activity based training program for group fitness instructors and personal trainers. Intervals of running and/or drill style aerobic activity interspersed with conditioning exercises make up the base of this workout. This format improves muscle strength and endurance as it improves cardiorespiratory fitness. Easy to follow, highly motivational program suitable for all ages and fitness levels, can be performed both – indoors and outdoors. It can be a valuable cross training tool that improves fitness level as it reduces the rate of injury and improves exercise adherence by reducing boredom.