Tip
Lie face-down on an incline bench (45* is good) with heavy dumbbells in each hand. Let the weight and arms hang straight down at your sides (hanging below bench level). With arms remaining straight shrug your shoulders up and a little to the front for peak contraction. Do not roll the shoulders when shrugging. Belial is right when he says it does more harm than good. The movement hits the mid to lower traps really well. It is very difficult to cheat because you can't use your lower body and your bodyweight is keeping you pinned to the bench (face-down can be a bit uncomfortable). Good luck!
- Screwball