These four principles will get you stronger fast.
If you have been training hard for awhile then you have most likely realized that there is a pretty strong correlation between getting stronger and getting bigger. Just take a look at weightlifters, powerlifters, and strongmen to see some convincing examples of this correlation.
This leads us to the obvious conclusion that even if our only goal is to look more muscular we need to get strong to do that. So if you have been following a typical muscle building program for awhile it may be time to switch to a more strength-oriented training plan.