The sportsmen of the world, of which the Tunisians suffer from lumbago. Whether they are recreational athletes, practicing irregularly, or competitive athletes; constantly moving back their limits and exposing themselves to accidents; they are faced with this common lumbar pathology. The issue of low back pain and its impact on the quality of life of the athlete and his or her career is a major issue in the Tunisian sports movement, since there is a lack of medical personnel in some clubs. Moreover, we have oriented our research in such a strategic area and we have focused on young athletes: a category that would be neglected compared to adult athletes.