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Does leisure time physical activity protect against low back pain? Systematic review and meta-analysis of 36 prospective cohort studies
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Does leisure time physical activity protect against low back pain? Systematic review and meta-analysis of 36 prospective cohort studies
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Journal Article
Does leisure time physical activity protect against low back pain? Systematic review and meta-analysis of 36 prospective cohort studies
2017
Overview
BackgroundThere are plausible mechanisms whereby leisure time physical activity may protect against low back pain (LBP) but there have been no quality systematic reviews and meta-analyses of the subject.ObjectiveThis review aims to assess the effect of leisure time physical activity on non-specific LBP.MethodsLiterature searches were conducted in PubMed, Embase, Web of Science, Scopus and Google Scholar databases from their inception through July 2016. Methodological quality of included studies was evaluated. A random-effects meta-analysis was performed, and heterogeneity and publication bias were assessed.ResultsThirty-six prospective cohort studies (n=158 475 participants) qualified for meta-analyses. Participation in sport or other leisure physical activity reduced the risk of frequent or chronic LBP, but not LBP for > 1 day in the past month or past 6–12 months. Risk of frequent/chronic LBP was 11% lower (adjusted risk ratio (RR)=0.89, CI 0.82 to 0.97, I2=31%, n=48 520) in moderately/highly active individuals, 14% lower (RR=0.86, CI 0.79 to 0.94, I2=0%, n=33 032) in moderately active individuals and 16% lower (RR=0.84, CI 0.75 to 0.93, I2=0%, n=33 032) in highly active individuals in comparison with individuals without regular physical activity. For LBP in the past 1–12 months, adjusted RR was 0.98 (CI 0.93 to 1.03, I2=50%, n=32 654) for moderate/high level of activity, 0.94 (CI 0.84 to 1.05, I2=3%, n=8549) for moderate level of activity and 1.06 (CI 0.89 to 1.25, I2=53%, n=8554) for high level of activity.ConclusionsLeisure time physical activity may reduce the risk of chronic LBP by 11%–16%. The finding, however, should be interpreted cautiously due to limitations of the original studies. If this effect size is proven in future research, the public health implications would be substantial.
Publisher
BMJ Publishing Group LTD
