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 .
Predictors of low back pain onset in a prospective British study.
OBJECTIVES This study examined predictors of low back pain onset in a British birth cohort . METHODS Univariate and multivariate analyses focused on individuals who experienced onset of low back pain at 32 to 33 years of age ( n= 571 ) and individuals who were pain free ( n = 5210 ) . Participants were members of the 1958 British birth cohort . RESULTS Incident pain was elevated among those with psychological distress at 23 years of age ( adjusted odds ratio [ OR ] = 2.52 , 95 % confidence interval [ CI ] = 1.65 , 3.86 ) and among persistent moderate or heavy smokers ( adjusted OR = 1.63 , 95 % CI = 1.23 , 2.17 ) . Significant univariate associations involving other factors ( e.g. , social class , childhood emotional status , body mass index , job satisfaction ) did not persist in multivariate analyses . CONCLUSIONS This prospect ively studied cohort provides evidence that psychological distress more than doubles later risk of low back pain , with smoking having a modest independent effect . Other prospect i ve studies are needed to confirm these findings before implication s for low back pain prevention can be assessed
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 .