As a high-impact activity, running requires a careful training approach when a person is just getting started or starting over after a break. The six-week Level 3 80/20 Starting Out/Starting Over Plan was painstakingly crafted to ensure success in the delicate process of easing (back) into running. Featuring the proven 80/20 intensity balance described in Matt Fitzgerald's bestselling book 80/20 Running. TARGET ATHLETE This level is intended for athletes who have done little to no running ...