John Broz bases his training on Bulgarian methods. This means training daily and often with multiple sessions a day. He also uses only a handful of exercises and has his athletes working up to a max at every session. This is heresy for many. Squatting up to a max every day seems like a recipe for overtraining. John says just the opposite. He acknowledges that doing this will lead to a decrease in performance in the short term and all the classic symptoms of overtraining (tiredness, irritability, insomnia). This is what he calls "dark times." However, he also says that an athlete will eventually work through this and working up to a max every day will be normal. It is hard to argue with the results that he has had.
I have been thinking a lot about this subject lately, and i think this man is very spot on. The human body is a great machine and can adapt to almost anything.
Squatting Every Day and the John Broz Training Method