By now, you should be feeling pretty comfortable with this chest, back, and ab workout, but don't become complacent! Arnold set himself apart from the rest of the pack by constantly finding new ways to challenge himself.
If a move begins to feel less stimulating, ask yourself if you're really exercising as intensely as possible. "Always go all-out in every set," says Arnold. "Don't save yourself for the next set."
You want to be like Arnold and set yourself apart? Then make sure you're hitting the pavement or the treadmill after you lift. Run 1-2 miles as fast as you can, 3-5 times per week.