{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T03:39:38Z","timestamp":1775187578011,"version":"3.50.1"},"reference-count":49,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,12,17]],"date-time":"2025-12-17T00:00:00Z","timestamp":1765929600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To explore the relationships between physical activity (PA) and sedentary behavior (SB) levels and insomnia among middle-aged and older adults.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This cross-sectional study involved 3,752 middle-aged and older adults aged 50\u202fyears or older from Wuhan, China. PA and SB levels were assessed via the International Physical Activity Questionnaire (IPAQ)-Short Form. Insomnia severity was evaluated by the Insomnia Severity Index (ISI). Multivariate logistic regression was employed to estimate the impact of PA and SB on insomnia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 3,752 middle-aged and older adults in Wuhan were included. Among them, 18.0% reported insomnia symptoms, with 13.6% classified as mild insomnia and 4.4% as moderate-to-severe insomnia. After adjustment for confounders, high levels of physical activity were found to be associated with lower odds ratios for mild insomnia than low levels of PA (OR (95% CIs)\u202f=\u202f0.67 (0.50, 0.90)), whereas 3\u20136\u202fh\/day and \u22656\u202fh\/day of sedentary behavior were associated with higher odds ratios for mild insomnia than were &amp;lt;3\u202fh\/day of sedentary behavior (OR (95% CIs)\u202f=\u202f1.41 (1.09, 1.83) and 1.71 (1.19, 2.45), respectively). Similarly, moderate and high levels of physical activity were associated with lower odds ratios for moderate insomnia (OR (95% CIs)\u202f=\u202f0.45 (0.28, 0.72) and 0.47 (0.30, 0.73), respectively), whereas \u22656\u202fh per day of sedentary behavior was associated with higher odds ratios for moderate insomnia (OR (95% CIs)\u202f=\u202f2.47 (1.37, 4.45)).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>High PA levels were associated with a reduced risk of both mild and moderate-to-severe insomnia in middle-aged and older adults, while SB\u202f\u2265\u202f3\u202fh\/day increased insomnia risk\u2014with the highest risk observed at SB\u202f\u2265\u202f6\u202fh\/day. Clinically, these findings support non-pharmacological interventions for insomnia prevention and management in this population: recommending achievement of high PA levels (e.g., \u22651,500 MET-minutes\/week of vigorous activity or \u22653,000 MET-minutes\/week of combined activity) and limiting daily SB to &amp;lt;3\u202fh. Targeted PA\/SB intervention programs should be prioritized for high-risk subgroups, such as women and low-income individuals.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpubh.2025.1700775","type":"journal-article","created":{"date-parts":[[2025,12,17]],"date-time":"2025-12-17T06:46:25Z","timestamp":1765953985000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Associations of physical activity and sedentary behavior with insomnia in middle-aged and older adults: a cross-sectional study"],"prefix":"10.3389","volume":"13","author":[{"given":"Yiying","family":"Lu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sijing","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiujun","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2025,12,17]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"ITC33","DOI":"10.7326\/AITC202103160","article-title":"Insomnia","volume":"174","author":"Sutton","year":"2021","journal-title":"Ann Intern Med"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"700","DOI":"10.1016\/j.psychres.2018.08.101","article-title":"Associations between TV viewing, sitting time, 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