If you keep the belt tight. Has a lot to do with prominent hips, but just have to compress the nerve. Granted, true MP is only LFC nerve, but any nerve can be compressed. The one MP patient I had also happened to have saphenous nerve anesthesia, but no other L4/5 problems. Loosened his belt and started feeling better in a few weeks.
come to think of it, he was wearing a rodeo buckle.