I’ve been doing my good ol’ 3x8 2-day split routine for a while now, and I’m thinking it’s time for a change. I am leaning towards Waterbury’s TBT routine, or a routine with similar exercises which implements periodization.
The thing that I am wondering is, how do you pre-emptively figure out how much weight to push? I feel like I spent weeks just dicking around with weights to figure out how much load to use. In TBT, Chad says, “Choose a weight that forces you to near-failure for the last rep of the last set”. But how do I know how much poundage that translates to for 3x5 or 2x15 or 3x18? Is there a mathematical formula that I can use to “guesstimate”?
Thanks so much, and sorry about asking such a newbie question, I’m just really lost on this!