{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T17:16:04Z","timestamp":1778174164053,"version":"3.51.4"},"reference-count":36,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,2,25]],"date-time":"2020-02-25T00:00:00Z","timestamp":1582588800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP23249035"],"award-info":[{"award-number":["JP23249035"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP23790708"],"award-info":[{"award-number":["JP23790708"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Pain"],"published-print":{"date-parts":[[2020,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Specific components of physical activity, such as vigorous exercise and heavy occupational work, are known to increase the risk of chronic low back pain (CLBP) and chronic knee pain (CKP), but impacts of other components are less known. This study aimed to assess the relationship between total physical activity and risk of CLBP and CKP from a public health perspective.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Participants were 7,565 individuals, aged 40\u201374\u00a0years, who did not have CLBP or CKP, and who participated in the 5\u2010year follow\u2010up survey. A self\u2010administered questionnaire was used to obtain information on demographics, body size and lifestyle (including physical activity) in the baseline survey in 2011\u20132013, and on CLBP and CKP using Short Form 36 (SF\u201036) in the follow\u2010up survey. Sitting, standing, walking and strenuous work for occupational activity were assessed for total physical activity, and walking slowly, walking quickly, light to moderate exercise and strenuous exercise were assessed for leisure\u2010time physical activity using metabolic equivalent hours\/day (METs score).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean age of participants was 60.1\u00a0years (<jats:italic>SD<\/jats:italic>, 8.8). Participants with higher METs scores had a significantly higher risk of CKP (<jats:italic>p<\/jats:italic> for trend\u00a0=\u00a00.0089, OR of 4th quartile\u00a0=\u00a01.29, 95% CI: 1.04\u20131.59 vs. 1st quartile), but not CLBP. An intermediate leisure\u2010time METs score was associated with a lower risk of CLBP (OR\u00a0=\u00a00.75, 95%CI: 0.61\u20130.92 vs. 0 METs\u2010group).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>A high level of total physical activity may increase the risk of CKP, whereas an intermediate level of leisure\u2010time physical activity may decrease the risk of CLBP, in middle\u2010aged and elderly individuals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Significance<\/jats:title><jats:p>Evidence on the longitudinal association between total physical activity and CLBP and CKP in middle\u2010aged and elderly people is lacking. We conducted a cohort study to assess this association, and found that high levels of total physical activity increased risk of CKP, and intermediate levels of leisure\u2010time physical activity decreased risk of CLBP. This suggests that the effect of physical activity on chronic pain differed by pain site.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ejp.1535","type":"journal-article","created":{"date-parts":[[2020,2,4]],"date-time":"2020-02-04T06:09:30Z","timestamp":1580796570000},"page":"863-872","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Total physical activity and risk of chronic low back and knee pain in middle\u2010aged and elderly Japanese people: The Murakami cohort study"],"prefix":"10.1002","volume":"24","author":[{"given":"Aleksandr","family":"Solovev","sequence":"first","affiliation":[{"name":"Department of Public Health and Health Pacific State Medical University Vladivostok Russia"},{"name":"Division of Preventive Medicine Niigata University Graduate School of Medical and Dental Sciences Niigata 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