The Bulletproof Athlete System

If you're an athlete, you already know the worst feeling in the world: watching from the sidelines because your body gave out. ACL tears, ankle sprains, Achilles ruptures—most of them aren't freak accidents. They're the result of weak foundations, muscle imbalances, and joints that weren't prepared for the demands of your sport. You can lift heavy all day, but if your ankles collapse when you cut, if your knees buckle under tension, if your hips lack the mobility to decelerate properly, you're one bad plant away from months of rehab. This workbook gives you the exact injury prevention system I use with professional and youth athletes—the same methods that have kept skateboarders and football players healthy and performing at their peak. Inside, you'll find eight targeted exercises designed to put your feet, ankles, knees, and hips under intentional tension, rebuild stability from the ground up, and teach your body to move the way it's supposed to. Each exercise breaks down the prompt, explains why it matters for your sport, shows you what a quality rep looks like, and calls out the common mistakes that waste your time or increase injury risk. I'm Adonis Harrison Jr., a functional training specialist and U.S. Air Force veteran. I've spent years training athletes who want to optimize their performance and stay available. This isn't about looking good in the gym—it's about being durable, explosive, and ready when it counts. If you're serious about playing your sport at the highest level, you need to take care of your body first. Everything else comes second.