Miner was using 1 1/2 inch water hose to wash scrubber. Miner bent over to turn off 2"" water valve and felt pinch in lower back. 1st Dr visit 10/30/14 released w/o restriction, 2nd Dr visit 12/11/14 released w/o restriction, 3rd visit 01/26/15 given work restriction and Rx medication that will not allow to work.