I was reading this article here by Dr. Clay Hyght:
TESTOSTERONE NATION - 12 Truths About Bodybuilding Training
And came across point number 9, here it is in quote.
9) Ditch Total Body Training
I'm well aware of the plethora of benefits of Total Body Training (TBT), and I'll agree that you can build a very good body with it. In fact, I train some of my clients with TBT. With that being said, I simply don't feel that TBT can take your physique to its ultimate potential.
Now, by "ultimate potential" I'm speaking of size and definition — a physique that would win a local bodybuilding or even Figure show. I have no studies, but tons of anecdotal evidence to back this up.
You've got to hit a muscle with a fairly high number of sets or crazy intensity to get maximum hypertrophy. In other words, you need to induce a lot of micro-trauma to the muscle. It's simply not feasible to do that to more than two or three muscle groups per day.
So if throwing things or people is your forte, then rock on with TBT. If you wanna have a stage-worthy physique, then split your body into groups. As for anecdotal evidence, not one pro or top amateur bodybuilder trains their whole body at one time. While I'm not one to blindly follow others, you've got to admit that that's some pretty convincing anecdotal evidence.
^^^ mmm.. Im not so sure i completly agree with this, I mean some ppl even advanced still responed better to lower volume.. What say you fellow lifters?