Deadlifting after squatting with a tired lower back
Hi, I'm a 31 year old male, I measure 1.87m (6.1ft) and I weigh 84Kg (185lbs).
I have been doing the programme for about a month and my squat went from nothing to 104Kg (229lbs) for 3 sets of 5, and keeps increasing. Before the programme I was already doing deadlifts at 165Kg (364lbs) for a set of 5.
My problem is the following: now that I'm getting the hang of squats and I keep adding weight, I can no longer lift the same weight in the deadlift because my lower back is too tired. I don't wear a belt but I have ordered one from Dominion Strength Training, it still hasn't arrived.
Should I stop squatting and deadlifting in the same workout? Would my lower back adapt in the end to allow me to deadlift "heavy" after squatting? Would the belt fix it?
Thanks for any help!