This ball exercise will help strengthen your core, and in turn will help minimize the occurrence of lower back pain.
Pike on a Ball
Begin in a push-up position with your knees resting on an exercise ball. Maintain a neutral spine, and do not allow your back to arch down towards the floor. Roll the ball from your thighs to your ankles by bending your knees and bringing them towards your chest. Slowly return to the start position. Perform three sets of 10 repetitions daily or as directed.