I've had back spasms on and off for a long time, and I'm pretty sure this is to blame... If I lie down on the floor, there is definately space between my lower back and the floor, and the bottom of my stomach protrudes a bit. Are there any exercises I can do to fix this, other than deadlifts? I'm sure that would be best, but with my spine out of whack, anytime I try to do them I get back spasms. I read that weak glutes and hams cause this, but if anyone has better information and can help it would be appreciated.