Conclusions Leisure time physical activity may reduce the risk of chronic LBP by 11%–16 % .
Background There are plausible mechanisms whereby leisure time physical activity may protect against  low back pain ( LBP )  but there have been no quality systematic review s and meta-analyses of the subject .
Objective This review aims to assess the effect of leisure time physical activity on non-specific LBP .
Low back pain and physical activity – A 6.5 year follow-up among young adults in their transition from school to working life
Background The association between leisure time physical activity and  low back pain in young adults is unclear and is in the need of prospect ively obtained evidence . This study examined the course of low back pain and the association between low back pain and leisure time physical activity in a cohort of young adults in their transition from school to working life . Methods Both low back pain and leisure time physical activity was monitored over a 6.5 year period in 420 subjects starting out as students within hairdressing , electrical installation and media/ design . The association between physical activity and low back pain was investigated through the follow-up period by using linear mixed models analysis . Results Low back pain was significantly influenced by time and overall there was a decreasing trend of low back pain prevalence throughout the follow-up . Analysis showed a weak trend of decreasing low back pain with moderate/high physical activity levels , but this association was not significant . Conclusions Low back pain decreased during follow-up with baseline as reference . Findings in our study did show non-significant trends of reduced low back pain with increased leisure time physical activity . Still , we could not support the theory of moderate/high levels of physical activity acting protective against low back pain in young adults entering working life . Our results , in combination with previous relevant research , can not support a clear relationship between  physical activity and low back pain for young adults . Thus , recommendations regarding effect of physical activity on reducing low back pain for this group are not clear
Conclusions Leisure time physical activity may reduce the risk of chronic LBP by 11%–16 % .
Background There are plausible mechanisms whereby leisure time physical activity may protect against  low back pain ( LBP )  but there have been no quality systematic review s and meta-analyses of the subject .
Objective This review aims to assess the effect of leisure time physical activity on non-specific LBP .