No, not trap bars, traps.
O.K., I actually do kind of know what trapezoids do, but I mean this question in the context of the bench press movement. I ask in regards to the following article excerpt from
http://testosterone.net/nation_articles/260iron.jsp :
Wednesday we'll do shoulders and tons of shrugs. Shoulders and traps are an integral part of your bench pressing. I do trap bar shrugs. I start with 135 pounds for 100 reps, 225 for 75 reps, 315 for 50 reps, 425 for 25 reps, then 515 for 15 reps. Then I'll alternate with straight bar shrugs and work up to 495 where I use a little of my body weight to heave the bar up. Then I'll hold it there for five seconds. I'll go up to 600 pounds and do the same thing, letting my arms hang down low to get a good pull on my traps. Then I grab the 135 pound dumbbells and do shrugs, four sets of thirty, really strict. After that I superset front raises and side raises. Tons of assistance work for shoulders!
He appears to be concerned mainly with the bench press (the deadlift, with respect to himself isn't even mentioned and the squat is mentioned as something to play with in the future). I get the last part, with deltoids greatly involved with the bench press. And yes, I suppose I realize that sometimes it might be desirable to add exercises just to prevent certain muscle imbalances from occurring; but I just found the great emphasis on trapezoids very curious.
Any comments? Are trapezoids really that huge a part of the bench press movement? If not, can you still find a justification for this emphasis on traps in the context of the bench press (other than the obvious 'it seems to work for this guy'

?
Just curiuous, August Pamplona