barbell or dumbell shrugs?

[bigdelt69]

When held to the side, I believe that db work the lower part of the trap, because the barbell is held in front it works the upper traps( I may have this reversed). You can also hold the db's in front of the thighs and get the same effect as with a bb.

 

[big4life]

I do bb shrugs followed by db shrugs.

 

[3Vandoo]

I do three types

start with dumbell, then go to the bar and end up at the shrugs "machine" where I load it up and bitch