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STUDY DESIGN: A prospective population-based cohort study performed in South Manchester, United Kingdom. OBJECTIVES: To determine whether nonoccupational physical activity and indicators of physical stress on the spine predict low back pain in the short term. SUMMARY OF BACKGROUND DATA: There is evidence that physical activity outside the workplace helps to protect against low back pain in the long term. However, such activity may injure or stress the spine in the short term. METHODS: A baseline survey questionnaire identified 2715 adults, aged 18-75 years, with no low back pain at the time of the survey. Information on potential predictors of low back pain also was obtained. New episodes of back pain were identified during the subsequent year. RESULTS: A new low back pain episode occurred in 34% of men and 37% of women. Poor general health at baseline was the strongest predictor of a new episode of pain (men: relative risk (RR) 1.5, 95% confidence intervals (CI) 0.8, 2.7; women: RR 2.2, 95% CI 1.2, 4.0). High weight was associated with subsequent low back pain in women (RR 1.4; 95% CI 1.0, 2.0), but neither height nor weight predicted low back pain in men. A self-rated low level of physical activity was not consistently linked with subsequent low back pain, nor were specific nonoccupational physical activities, apart from home-improvement work in men and regular sports in women. CONCLUSION: Although some specific activities may be hazardous to the back, physical activity outside the workplace does not increase the short-term risk of low back pain overall. Leisure-time physical activity is not a hazard to the back, whereas poor physical health in both genders and heavier weight in women do increase the risk of new low back pain episodes in the short term.


Journal article


Spine (phila pa 1976)

Publication Date





1556 - 1561


Adult, Aged, Cohort Studies, England, Exercise, Female, Health Status, Humans, Leisure Activities, Low Back Pain, Male, Middle Aged, Prospective Studies, Risk Factors, Time Factors