Many strength athletes are creatures of habit. They do the same thing day in and day out. They get big, they get strong, but sometimes they get bored! And how do you cure boredom? Set a challenge! Forget about adding more weight to the bar - do something different. In fact, forget the bar altogether. Set a challenge that involves strictly your body weight - something for your upper body, lower body and core. Here are four strength-endurance goals that any bodybuilder or powerlifter should be able to do and if you can't, then you must! The challenge has been set..