{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T06:06:16Z","timestamp":1781071576368,"version":"3.54.1"},"reference-count":44,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T00:00:00Z","timestamp":1780963200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T00:00:00Z","timestamp":1780963200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100003077","name":"Knowledge Foundation","doi-asserted-by":"publisher","award":["20210002"],"award-info":[{"award-number":["20210002"]}],"id":[{"id":"10.13039\/100003077","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCPP Advances"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Attention\u2010deficit\/hyperactivity disorder (ADHD) symptoms are associated with adverse health outcomes; this may be partially due to unhealthy lifestyle factors such as low physical activity (PA) and high sedentary behavior (SED). However, this association remains unclear. ADHD and PA have a medium\u2010to\u2010high heritability; therefore, genetically informed studies are warranted. This study aimed to increase the understanding of the association between ADHD symptoms and time spent in PA and SED in children. Additionally, we aimed to determine whether sex, symptom type, and genetics influence this association. This could guide the design of health promotion and preventive interventions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This cross\u2010sectional twin study included 9\u2010year\u2010old children from the Swedish Twin Registry born from 2011 to 2015 who had complete data on ADHD symptoms and accelerometry. ADHD symptoms were assessed through a parental\u2010report questionnaire. Inattention and hyperactivity\/impulsivity symptoms were analyzed together and separately. Triaxial accelerometry measured the average time (minutes) spent in SED, light physical activity (LPA), and moderate\u2010to\u2010vigorous physical activity (MVPA). Linear generalized estimating equations regression models were used to assess the association in the full cohort and stratified by sex. Within\u2010twin pair analyses were performed separately for dizygotic and monozygotic twins. Regression coefficients and 95% confidence intervals (CI) were calculated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      1966 children (52.8% girls) were included. In the full cohort, ADHD symptoms were significantly associated with less time in SED (\n                      <jats:italic>\u03b2<\/jats:italic>\n                      \u00a0=\u00a0\u22120.32; 95% CI \u20100.59, \u22120.06) and more time in MVPA (\n                      <jats:italic>\u03b2<\/jats:italic>\n                      \u00a0=\u00a00.30; 95% CI 0.12, 0.47). These associations were primarily driven by hyperactivity\/impulsivity symptoms and were significant\u00a0only in girls. The associations remained in dizygotic twins but became non\u2010significant among monozygotic twins.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Our findings suggest that in girls, higher hyperactivity\/impulsivity symptoms are associated with higher PA levels. Associations were largely explained by shared familial factors, including genetics. Longitudinal studies are needed to corroborate these results.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jcv2.70141","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T05:47:03Z","timestamp":1781070423000},"source":"Crossref","is-referenced-by-count":0,"title":["Association between ADHD symptoms and device\u2010measured physical activity and sedentary behavior in childhood: A population\u2010based twin study"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4871-4454","authenticated-orcid":false,"given":"Narda","family":"Ontiveros","sequence":"first","affiliation":[{"name":"Department of Health Sciences The Swedish School of Sports and Health Sciences (GIH)  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bj\u00f6rg","family":"Helgadottir","sequence":"additional","affiliation":[{"name":"Department of Health Sciences The Swedish School of Sports and Health Sciences (GIH)  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