IntroductionLow back pain is currently one of the most widespread pub-lic health problems faced by the industrialized world, as itaffects a large portion of the population and constitutes aheavy burden on national health and welfare systems interms of diagnostics, treatment, absenteeism and early retire-ment. Added to that is the psychosocial impact caused by theuntimely withdrawal of otherwise active people from theirdaily activities.1,2