There are many reasons for lower back pain and often it’ll be caused by a mixture of factors. One of the common reasons is muscular weakness. The more we sit, the weaker our muscles get, particularly if we always sit in the same position, which can cause tightness or excessive looseness in one particular place. 

Lower back pain is experienced by 60-70% of adults in the industrialised world but that doesn’t mean you have to put up with it. In fact, back pain caused by sitting is within your control.