p90x controversy + ACE + muscle confusion + risk of injury - This chisel-cheeked motivator (watch video of his book promotion) made the idea that a workout should be work mainstream with his hit DVD series. It's filled with controversial exercises and long workouts, p90x controversy + ACE + muscle confusion + risk of injury, but it's one of the few programs of its kind that you can actually do at home. And it gets results.
