{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["175(7)"],"submitter":["Lonsdale C"],"pubmed_abstract":["<h4>Importance</h4>Cardiorespiratory fitness is an important marker of childhood health and low fitness levels are a risk factor for disease later in life. Levels of children's fitness have declined in recent decades. Whether school-based physical activity interventions can increase fitness at the population level remains unclear.<h4>Objective</h4>To evaluate the effect of an internet-based intervention on children's cardiorespiratory fitness across a large number of schools.<h4>Design, setting, and participants</h4>In this cluster randomized clinical trial, 22 government-funded elementary schools (from 137 providing consent) including 1188 students stratified from grades 3 and 4 in New South Wales, Australia, were randomized. The other schools received the intervention but were not included in the analysis. Eleven schools received the internet-based intervention and 11 received the control intervention. Recruitment and baseline testing began in 2016 and ended in 2017. Research assistants, blinded to treatment allocation, completed follow-up outcome assessments at 12 and 24 months. Data were analyzed from July to August 2020.<h4>Interventions</h4>The internet-based intervention included standardized online learning for teachers and minimal in-person support from a project mentor (9-10 months).<h4>Main outcomes and measures</h4>Multistage 20-m shuttle run test for cardiorespiratory fitness.<h4>Results</h4>Of 1219 participants (49% girls; mean [SD] age, 8.85 [0.71] years) from 22 schools, 1188 students provided baseline primary outcome data. At 12 months, the number of 20-m shuttle runs increased by 3.32 laps (95% CI, 2.44-4.20 laps) in the intervention schools and 2.11 laps (95% CI, 1.38-2.85 laps) in the control schools (adjusted difference = 1.20 laps; 95% CI, 0.17-2.24 laps). By 24 months, the adjusted difference was 2.22 laps (95% CI, 0.89-3.55 laps). The cost per student was AUD33 (USD26).<h4>Conclusions and relevance</h4>In this study, a school-based intervention improved children's cardiorespiratory fitness when delivered in a large number of schools. The low cost and sustained effect over 24 months of the intervention suggests that it may have potential to be scaled at the population level.<h4>Trial registration</h4>http://anzctr.org.au Identifier: ACTRN12616000731493."],"journal":["JAMA pediatrics"],"pagination":["680-688"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8094033"],"repository":["biostudies-literature"],"pubmed_title":["Effect of a Scalable School-Based Intervention on Cardiorespiratory Fitness in Children: A Cluster Randomized Clinical Trial."],"pmcid":["PMC8094033"],"pubmed_authors":["Antczak D","Salmon J","Lubans DR","Lee J","Hillman C","Hartwig T","Moodie M","McKay H","Greene D","Parker P","Cinelli R","Lonsdale C","Gore J","Boyer J","Cliff D","Shigeta TT","Vasconcellos D","Tan E","Peralta L","Sanders T","Kirwan M","Bennie A","Gao L","Morrison R","Plotnikoff RC","Kolt G","Morgan P","Noetel M"],"additional_accession":[]},"is_claimable":false,"name":"Effect of a Scalable School-Based Intervention on Cardiorespiratory Fitness in Children: A Cluster Randomized Clinical Trial.","description":"<h4>Importance</h4>Cardiorespiratory fitness is an important marker of childhood health and low fitness levels are a risk factor for disease later in life. Levels of children's fitness have declined in recent decades. Whether school-based physical activity interventions can increase fitness at the population level remains unclear.<h4>Objective</h4>To evaluate the effect of an internet-based intervention on children's cardiorespiratory fitness across a large number of schools.<h4>Design, setting, and participants</h4>In this cluster randomized clinical trial, 22 government-funded elementary schools (from 137 providing consent) including 1188 students stratified from grades 3 and 4 in New South Wales, Australia, were randomized. The other schools received the intervention but were not included in the analysis. Eleven schools received the internet-based intervention and 11 received the control intervention. Recruitment and baseline testing began in 2016 and ended in 2017. Research assistants, blinded to treatment allocation, completed follow-up outcome assessments at 12 and 24 months. Data were analyzed from July to August 2020.<h4>Interventions</h4>The internet-based intervention included standardized online learning for teachers and minimal in-person support from a project mentor (9-10 months).<h4>Main outcomes and measures</h4>Multistage 20-m shuttle run test for cardiorespiratory fitness.<h4>Results</h4>Of 1219 participants (49% girls; mean [SD] age, 8.85 [0.71] years) from 22 schools, 1188 students provided baseline primary outcome data. At 12 months, the number of 20-m shuttle runs increased by 3.32 laps (95% CI, 2.44-4.20 laps) in the intervention schools and 2.11 laps (95% CI, 1.38-2.85 laps) in the control schools (adjusted difference = 1.20 laps; 95% CI, 0.17-2.24 laps). By 24 months, the adjusted difference was 2.22 laps (95% CI, 0.89-3.55 laps). The cost per student was AUD33 (USD26).<h4>Conclusions and relevance</h4>In this study, a school-based intervention improved children's cardiorespiratory fitness when delivered in a large number of schools. The low cost and sustained effect over 24 months of the intervention suggests that it may have potential to be scaled at the population level.<h4>Trial registration</h4>http://anzctr.org.au Identifier: ACTRN12616000731493.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Jul","modification":"2025-04-04T10:16:09.142Z","creation":"2025-04-04T10:16:09.142Z"},"accession":"S-EPMC8094033","cross_references":{"pubmed":["33938946"],"doi":["10.1001/jamapediatrics.2021.0417"]}}