Knee rotations are another one of the SI joint pain stretches that is fairly gentle but effective. To begin, lay flat your back with the knees bent and both your feet flat on the floor. Keeping the lower back anchored on the floor and the lower spine relatively still, allow your knees to gently sway to the left, hold for a few seconds, and then return the knees to center. Now repeat this process on your right side. Continue this process until you have completed 8-10 repetitions for each leg.
