P90X® is a comprehensive in-home fitness and nutrition program proven to
burn fat and reshape your body with lean muscle in just 90 days.
P90X One on One gives you other workout options for Tony Horton that are like P90X but help you change it up a bit.
In INSANITY®, Shaun T uses a method called Max Interval Training. It's not your typical interval workout. You'll do cardio and plyometric drills with intervals of strength, power, resistance, and core training. It all happens in long bursts of maximum-intensity exercises with short periods of rest so you can burn up to 1,000 calories in an hour.
Insanity The Asylum is all about Sport's Performance.
This program uses P90X as it's base and replaces certain workouts in a strategic manner to take you to the next level. If you thought P90X was tough, give it a try with Insanity/Asylum/One on One workouts as substitutes and even some RevAbs thrown in.