Repeat this lower back rotational stretch two or three times on each side of your body. To remember to practice this stretch, try doing it once in the morning and once at night (and add an afternoon stretch as needed):
Begin by lying on your back. Bend your knees and place your feet flat on the floor. Focus on keeping your shoulders touching the floor, and then roll your knees to one side of your body. Hold this pose for up to 10 seconds before returning to your starting position. Repeat on the other side.