8 Wrestling Moves That Really Wouldn’t Hurt At All
5. Half Boston Crab
As somebody with lower lumbar back pain, this actually looks like a really nice stretch that might be administered in a physio's office, not a wrestling ring.
Granted, variations on this submission that use a knee to the mid-back, or even just both legs, would turn this into the legitimate submission that it is, but the fact that you actually have control of your other leg would make unbending your back laughably simple by supporting yourself on your other knee.
OR you could just writhe uselessly in pain, that's good too.