Hi!
I've battled this lower back pain for quite some time now. My chiropractor says my pelvis is crooked, and he has given me a couple of stretches and exercises which adresses this problem. Though, he told me to avoid lower back exercises (such as arch holds).
The thing is, I almost did "mastery" with my arch hold on SL/PE1, while I barely managed to do one set with the hollow hold on FL/PE1. He told me that I need to strengthen my abdominals and glutes for the pain to go away. And as you notice, I got a stronger arch than a hollow which doesn't help my problem...
Now how am I supposed to continue SL progressions with this type of problem? I do not want to put F1 on hold, but I need to fix the pelvis tilt if I want to be able to do SL progressions.
Any advice would be greatly appreciated!