interesting tidbit that came up with a friend of mine at the gym the other night.
He and I are similar lifts-wise and normally follow a similar protocol. However recently I started the 5x5 program from madcow's site. Now usually, after leg day my legs are sore for 3-4 days. And in the madcow program, you are squatting 3 times per week, twice with very high intensity.
My buddy asked me the other night how I do it... He was like "if i squatted more than once per week id be dead, i can barely move after leg day" to which I replied... that with the 5x5 program, i squat 3 times per week, but im never sore... my body recovers better now than it ever did before.
The whole once per week split is essentially a fallacy anyway, that is not how the body works.
Take a look here for some info on "dual factor theory"
It's sad bodybuilders turned their back on what they themselves created. Well not all, there's still guys like Ronnie and Melvin who train everything twice.
Dual Factor by Animal is just the same as the Upper/Lower splits Joe Weider created in the 70's and 80's. 5x5 was what Reg Park used to build his mass in the 50's. And HST is very similiar to what Steve Reeves and George Eifermen did in the 40's.
A lot of bodybuilders in Europe still train that way. It's nice to know science can now prove what they knew way back then. It only bothers me when people forget that Joe and the old gang were doing all this stuff from the start. And the guy who ushered in this one bodypart a day, once a week shit, Dorian was lying all along. He was doing something very similiar to DC training.
It has been working for me. The only thing I hit twice is bi/tri. Bi on back day and tri on chest day, then arms on a separate day. Everyone's body responds differently bro. A lot of people use the one bp per week split with great success.