Right then, My lower back is very stiff, not painful but doesnt appear to bend much. I can touch my toes etc but when viewed from the side the lower third of my back doesnt appear to bend much at all. I think this lack of flexibility is impacting on my ability to roll effectively out of locks etc as I struggle to get my shoulder to the floor quickly enough (could also be a fear of the floor). Are there any exercises, stretches which can focus on increasing the flexibility in this region of my back? I am currently trying slow backward rolls but stopping as my toes reach the ground and holding this for a while to see if this helps but not sure if it is very effective. Any pointers are greatly appreciated, thanks.