{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T08:09:24Z","timestamp":1779437364599,"version":"3.53.1"},"reference-count":64,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T00:00:00Z","timestamp":1779408000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T00:00:00Z","timestamp":1779408000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Obesity Reviews"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Resistance training (RT) is increasingly recognized as a promising exercise modality for enhancing health and fitness in children and adolescents. However, evidence remains inconsistent in those with overweight\/obesity. This umbrella review synthesized evidence from systematic reviews to evaluate RT effects on body composition, physical fitness, and cardiometabolic health in this population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We searched seven databases from inception to February 2026 for systematic reviews with meta\u2010analyses comparing RT versus controls in children and adolescents with overweight\/obesity. Main outcomes included percent body fat, fat\u2010free\/lean mass, muscular strength, cardiorespiratory fitness, and cardiometabolic markers. We conducted meta\u2010analyses on unique primary data, with subgroup analyses by comparator type (active vs. inactive), training frequency (1\u20132 vs. \u2265\u20093 sessions\/week), duration (\u2264\u200912 vs. &gt;\u200912\u2009weeks), and age (\u2264\u200912 vs. &gt;\u200912\u2009years).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Sixteen systematic reviews (67 primary studies, 5112 participants) were included. Compared with all non\u2010RT control conditions, RT decreased percent body fat (mean difference [MD]: \u22120.53%; 95% confidence interval [CI]: \u22121.00 to \u22120.06) and increased fat\u2010free\/lean mass (MD: 0.48\u2009kg; 95% CI: 0.23 to 0.74). Muscular strength also improved significantly, with consistent benefits across body regions, training frequencies, durations, and age groups. Subgroup analyses indicated significant improvements in cardiorespiratory fitness, visceral fat, and fasting insulin versus inactive controls.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This umbrella review demonstrates that RT significantly improves body composition and physical fitness in children and adolescents with overweight\/obesity, alongside modest cardiometabolic health benefits. Our findings support integrating RT into school\u2010 and community\u2010based programs for pediatric obesity management.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/obr.70171","type":"journal-article","created":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T08:02:39Z","timestamp":1779436959000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Impact of Resistance Training on Body Composition, Physical Fitness, and Cardiometabolic Health in Children and Adolescents With Overweight\/Obesity: An Umbrella Review With Meta\u2010Analyses"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0842-1323","authenticated-orcid":false,"given":"Eric Tsz\u2010Chun","family":"Poon","sequence":"first","affiliation":[{"name":"Department of Sports Science and Physical Education The Chinese University of Hong Kong  Shatin Hong 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