Strengthen your core. One of the problems Coach Barry had with his back issue was that he had a weak core. Dr. Heather Moore prescribed 3 days per week of plank work. What planks do is stabilize the lower back and abdominals by bringing the pelvis back to neutral position. So next time your lower back feels a bit funky after squatting, deadlifting, and the Olympic lifts, perform some planks afterwards. Be sure to squeeze your butt as always.