I've been following Eric Cressey's Maximum Strength program to a T and seen some great results.
However, I always experience quite a bit of lower-back pain after performing deadlifts (whether it;s sumo or conventional). Is this a sign that I have a weak core?
I don't take any "unusual supplements" and I've been lifting with correct form for 2+ years. I have no idea what to do as I've tried going for physiotherapy and it hasn't helped.
Is it typically to be really sore (for at least a couple days) after I deadlift heavy? (My one rep max is 425 lbs if that helps).