Overload of spine exposes to micro injuries such as internal annular ruptures, which can lead even to total annular rupture and disc herniation. Internal annular ruptures cause pain, which can be diagnosed by disco graphic pain provocation. This pain can be provoked non-invasively by bony vibration test [32,34,40,41]. According to this study there was evidence for internal disc disruption being one potential cause of low back pain in bus drivers. The prevalence of internal disc disruption in bus drivers suffering from recurrent low back pain was approximately the same as find earlier by disco graphic pain provocation [42]. Low back and neck–shoulder pain and fatigue increased more during driving in drivers who had positive vibration pain provocation test than those who had negative indicating that driving may expose for pain in those cases.