When I first started coaching Rob Stein, he was doing a 3 day FB type plan. He was still fairly new to the idea of bodybuilding, but had come pretty far on his own from his “out of shape” days and it was evident. Still, he knew he had work to do if he was going to step onstage with serious competitors.
Rob’s decision was based out of necessity. He was a very busy guy, teaching full time, running a side music business, and of course had a wife, dog(s), and the usual “real life” stuff I always joke about.
When we look back at the “old school” guys who loved the full body approaches, they never really seemed to have any concerns or commitments that made spending 2-3 hours in the gym problematic. Of course, aside from the odd genetic freaks, you’d be hard pressed to find the type of development that pros of later years (and split schedules) would display (PEDs aside). @BrickHead has always explained it really well in that when you incorporate an intelligent split, everything is hit in a direct fashion, AND an indirect fashion. This allows a very smart way of keeping the rotating recovery of muscle groups in constant motion.
Now, it is absolutely required? Of course not. When my wife was still competing, she had her day job, and a few nights a week working at a college. This meant that she couldn’t do a full split over 7 days like I would have normally loved, but, I also didn’t want her simply relying on a 3 day FB plan because I didn’t think it would yield the results we needed to get onstage and do well. As such, we sort of came up with a hybrid approach, that managed to hit the best parts of a full split, but also a couple of abbreviated, more FB sounding sessions as well.
For general population, you have to do what works well for you. Unfortunately that leaves many people following some of the really ridiculous routines written about by “authors” who have no business doling out expert advice (imo of course)
S
