{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T03:04:56Z","timestamp":1788404696333,"version":"build-2803163510"},"reference-count":61,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T00:00:00Z","timestamp":1769644800000},"content-version":"unspecified","delay-in-days":28,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001381","name":"National Research Foundation Singapore","doi-asserted-by":"publisher","award":["MOH-000504"],"award-info":[{"award-number":["MOH-000504"]}],"id":[{"id":"10.13039\/501100001381","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Research Foundation Human Health and Potential (HHP) Domain"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2026,1,9]]},"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Current evidence is unclear due to methodological limitations. We bridge critical knowledge gaps by quantifying the longitudinal changes in movement behaviours and their correlates from early childhood through adolescence.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Longitudinal observational cohort study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>General healthy child and adolescent sample in Singapore.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Growing Up in Singapore Towards healthy Outcomes study participants.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Primary and secondary outcome measures<\/jats:title>\n                    <jats:p>We used wrist-worn accelerometry and proxy-reported data to examine movement behaviours (sleep, inactivity, light physical activity (PA; LPA) and moderate-to-vigorous PA (MVPA) and screen-viewing) at ages 5.5, 8, 10 and 12 years and the sociodemographic and maternal lifestyle-related correlates using linear regression models with generalised estimating equations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 837 children, sleep, LPA and MVPA declined by 3% (from 9.1 to 8.8\u2009hours\/day), 24% (from 5.8 to 4.4\u2009hours\/day) and 44% (from 71.3 to 40.1\u2009min\/day), respectively, while inactivity and screen viewing increased by 26% (from 8.0 to 10.1\u2009hours\/day) and 155% (from 1.8 to 4.6\u2009hours\/day), respectively, from ages 5.5 to 12 years. The greatest annual increase in inactivity (0.6\u2009hour\/annum) and screen-viewing (0.8\u2009hour\/annum) and decrease in LPA (0.3\u2009hour\/annum) and MVPA (10.4\u2009min\/annum) occurred from ages 8 to 10 years. Girls of Malay ethnicity and lower socioeconomic status, and whose mothers had less favourable movement behaviours, had significantly less sleep, higher inactivity and screen-viewing and\/or lower PA. Maternal PA levels and\/or sitting time were associated with children\u2019s sleep, inactivity and MVPA up to age 8 years, while maternal sitting and screen-viewing behaviours were associated with children\u2019s screen-viewing at all ages.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Using contemporaneous datasets relevant to the present day, we confirmed that children become less physically active and have longer screen-viewing as they transition into adolescence and highlighted characteristics to be prioritised in future interventions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2025-105140","type":"journal-article","created":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T14:45:39Z","timestamp":1769697939000},"page":"e105140","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Sociodemographic and maternal-related correlates of children\u2019s movement behaviours from preschool to adolescence in Singapore: a longitudinal cohort study"],"prefix":"10.1136","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6328-3250","authenticated-orcid":false,"given":"Sarah Yi Xuan","family":"Tan","sequence":"first","affiliation":[{"name":"Saw Swee Hock School of Public Health, National University of Singapore, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah M","family":"Edney","sequence":"additional","affiliation":[{"name":"Saw Swee Hock School of Public Health, National University of Singapore, 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