This is not "necessarily" a blanket truth. I mean one can have 5 different exercises--per muscle group and train once per week, and be doing 10 sets for each exercise, and over train, and one could be doing less sets, and be fine (for example). This is the reason I had asked for sets and rep info. In addition, IMO one can just pick two exercises (dependent on the person, of course), and do proper sets/reps and have a good diet, and train once a week, and be fine.....there isnt a hard and fast rule......but we can succumb to some basics.
For example, I train every 5 days......with good results (minus my fricken legs) and with only 2 exercises per body part (or at least most of them). More sets isnt a default answer, sometimes LESS is more, not all the time, but can be. Just depends on the persons situation and goals.
I am going to default that you mean body builders who do not have enhanced recovery (steroids) and to body builders---more akin to being so-called natural. Yes, some have trained once per week, but there are those that train more than once per week. Its just knowing what works for you. I would train once a month, if it brought impressive results. And, I would train EVERY SINGLE DAY.....if it brought impressive results

).....Just messen.....> But seriously would......Im a pretty stubborn....and persistant old man)
I just wanted to see what orange had working for him...
Chillen