that's just stupid. you can go to the bodybuilding.com forums and look it up or even ask half the gym rats on their. the muscles primarily worked in the bench press are chest , triceps and interior deltoids.. and the traps are only used if you're doing a very steep incline. the only thing you'd be doing to your biceps would barely be enough to call a warmup.


and as for kazilla, if you get more of a pump in your biceps on backday, it is probably because your back isn't strong enough to haul most of the weight your pulling, so your biceps would be doing more than assisting and they'd be taking most of the weight..have you been doing lat pulldowns for back? if you have, switch to an iso-lateral rowing machine in your gym, you should try using that more on back day it'll help alot. with gaining thickness and strength on your back like it did for me.