The result of two years of R&D conducted by a team of the most qualified experts in fitness, P90X2 includes training so cutting edge, so outrageously effective, you''ll be blown away by your visible results and your performance. While P90X is based on Muscle Confusion-to break normal 30-day training plateaus so you get results fast-P90X2 ups the ante with a training technique developed by professional sports trainers for world class results: P.A.P., or Post-Activation Potentiation. With P90X2, you get 12 groundbreaking workouts focused on chiseling your body while building your balance, agility, core strength, and athleticism. It includes new customization with an all-new, highly flexible nutrition plan to help you excel. THIS is training. Better training than most pro athletes get. And with an emphasis on your abs/core, powerful athletic function, and lightning-bolt agility, it''ll help you blast through your plateaus.