Most of the specialist recommend different kind of exercise for those who are suffering from slip disc and spondylosis to get an attractive six pack abs. Those are; Chin tuck. Aerobic. Side bending. Side to side head rotation. Plank. Cycling. However, it is recommended to practice those exercise under the supervision of an trained instructor, as he/she can help you to make a correct posture. Because a wrong posture can increase the pain.