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The current study examined associations between meeting 24-hour movement guidelines with ADHD symptoms, sleep problems, and media use. <jats:italic><jats:bold>Methods<\/jats:bold>:<\/jats:italic> Accelerometer data measured physical activity and sleep among a sample of 93 children with ADHD (mean age\u2009=\u20098.10, SD<jats:sub>age<\/jats:sub>\u2009=\u20091.37, 58.9% male). Parent-report measures assessed ADHD symptoms, sleep difficulties, and media use. Multivariate analysis of covariance analyses explored associations between meeting 24-hour movement guidelines and outcomes. Latent class analysis (LCA) identified unique combinations of 24-hour movement guideline adherence. Associations were examined between classes and outcomes. <jats:italic><jats:bold>Results<\/jats:bold>:<\/jats:italic> Overall, 41.5% of children met physical activity guidelines, 23.4% met sedentary behavior guidelines, and 45.7% met sleep guidelines. Multivariate analysis of covariance analyses found that meeting more guidelines was associated with less sleep difficulties and problematic media use. LCA revealed 2 classes: <jats:italic>Hypoactive<\/jats:italic> children who were unlikely to meet activity guidelines and <jats:italic>Work Hard, Play Hard<\/jats:italic> children who were likely to meet activity and sleep guidelines. Children in the <jats:italic>Work Hard, Play Hard<\/jats:italic> class had less bedtime resistance compared with the <jats:italic>Hypoactive<\/jats:italic> class. <jats:italic><jats:bold>Conclusion<\/jats:bold>:<\/jats:italic> Findings have implications for clinicians and caregivers supporting children with ADHD to take a holistic approach to improve health behaviors throughout the whole day.<\/jats:p>","DOI":"10.1123\/jpah.2024-0497","type":"journal-article","created":{"date-parts":[[2025,7,10]],"date-time":"2025-07-10T19:34:13Z","timestamp":1752176053000},"page":"1143-1152","source":"Crossref","is-referenced-by-count":2,"title":["Adherence to 24-Hour Movement Guidelines and Behavioral Health in Children With Attention Deficit Hyperactivity Disorder in the United States"],"prefix":"10.1123","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2974-9712","authenticated-orcid":true,"given":"McKenna","family":"Parnes","sequence":"first","affiliation":[{"name":"Treuman Katz Center for Pediatrics Bioethics and Palliative Care, Center for Clinical and Translational Research, Seattle Children\u2019s Research Institute, Seattle, WA, USA"},{"name":"Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6374-3360","authenticated-orcid":true,"given":"Erin","family":"Gonzalez","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior and Development, Seattle Children\u2019s Research Institute, Seattle, WA, USA"},{"name":"Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-4658-7826","authenticated-orcid":true,"given":"Nguyen","family":"Tran","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior and Development, Seattle Children\u2019s Research Institute, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4475-8871","authenticated-orcid":true,"given":"Mark A.","family":"Stein","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior and Development, Seattle Children\u2019s Research Institute, Seattle, WA, USA"},{"name":"Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0833-4358","authenticated-orcid":true,"given":"Jason","family":"Mendoza","sequence":"additional","affiliation":[{"name":"Center for Child Health, Behavior and Development, Seattle Children\u2019s Research Institute, Seattle, WA, USA"},{"name":"Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA"},{"name":"Fred Hutchinson Cancer Center, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7180-838X","authenticated-orcid":true,"given":"Pooja","family":"Tandon","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA"},{"name":"Center for Child Health, Behavior and Development, Seattle Children\u2019s Research Institute, Seattle, WA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"1","key":"r1","series-title":"Psychol Bull","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1037\/0033-2909.121.1.65","article-title":"Behavioral inhibition, sustained attention, and executive functions: constructing a unifying theory of ADHD","volume":"121","author":"Barkley RA","year":"1997","unstructured":"Barkley RA. 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