Background:Meeting the 24-Hour Movement Guidelines(physical activity,screen time,and sleep duration)has been associated with positive health indicators.However,there are no previous meta-analyses that have examined the overall adherence to the 24-Hour Movement Guidelines from pre-school to adolescence across the world.Therefore,the main purpose of this systematic review and meta-analysis was to examine the overall(non)adherence to the 24-Hour Movement Guidelines among preschoolers,children,and adolescents worldwide.Methods:Four electronic databases(MEDLINE,Scopus,Web of Science,and Cochrane Database of Systematic Reviews)were searched for quantitative studies published in Spanish and English between January 2016 and May 2021.Studies that were conducted with apparently healthy participants and reported the overall(non)adherence to the 24-Hour Movement Guidelines in preschoolers and/or children and/or adolescents were included.Results:Sixty-three studies comprising 387,437 individuals(51％girls)aged 3-18 years from 23 countries were included.Overall,7.12％(95％confidence interval(95％CI):6.45％-7.78％)of youth met all three 24-Hour Movement Guidelines,and 19.21％(95％CI:16.73％-21.69％)met none of the 3 recommendations.Concerning sex,adherence to all recommendations was significantly lower in girls(3.75％,95％CI:3.23％-4.27％)than in boys(6.89％,95％CI:5.89％-7.89％)(p＜0.001).However,there were no sex differences regarding adherence to any of the 3 individual recommendations(girls,15.66％,95％CI:8.40％-22.92％;boys,12.95％,95％CI:6.57％-19.33％).In terms of age group,adherence to the 3 recommendations was 11.26％(95％CI:8.68％-13.84％),10.31％(95％CI:7.49％-13.12％),and 2.68％(95％CI:1.78％-3.58％)in preschoolers,children,and adolescents,respectively.Conversely,8.81％(95％CI:5.97％-11.64％)of preschoolers,15.57％(95％CI:11.60％-19.54％)of children,and 28.59％(95％CI:22.42％-34.75％)of adolescents did not meet any of the recommendations.South America was the region with the lowest adherence(all:2.93％;none:31.72％).Overall adherence to the 24-Hour Movement Guidelines was pos-itively related to country Human Development Index(β=-0.37,95％CI:-0.65 to-0.09;p=0.010).Conclusion:Most young people fail to meet the three 24-Hour Movement Guidelines,particularly adolescents,girls,and those who are from countries with a lower Human Development Index.Moreover,1 in 5 young people did not meet any of these recommendations.Therefore,these results highlight the need to develop age-and sex-specific strategies to promote these movement behaviors from the early stages of life.

Miguel Angel Tapia-Serrano;Javier Sevil-Serrano;Pedro Antonio Sánchez-Miguel;José Francisco López-Gil;Mark S.Tremblay;Antonio García-Hermoso

Department of Didactics of Musical,Plastic and Body Expression,Faculty of Teaching Training,University of Extremadura,Avenida de la Universidad,S/N,Cáceres 10071,Spain;Department of Physical Activity and Sport,Faculty of Sport Science,University of Murcia(UM),San Javier 30720,Spain;Healthy Active Living and Obesity Research Group,Children's Hospital of Eastern Ontario(CHEO)Research Institute,Ottawa,ON K1H 8L1,Canada;Navarrabiomed,Public University of Navarra(UPNA),Health Research Institute of Navarra(IdiSNA),Navarra Hospital Complex(CHN),Pamplona 310008,Spain

运动与健康科学（英文）

[1]Miguel Angel Tapia-Serrano;Javier Sevil-Serrano;Pedro Antonio Sánchez-Miguel;José Francisco López-Gil;Mark S.Tremblay;Antonio García-Hermoso-.Prevalence of meeting 24-Hour Movement Guidelines from pre-school to adolescence:A systematic review and meta-analysis including 387,437 participants and 23 countries)[J].运动与健康科学（英文）,2022(04):427-437

preschoolers,itively

Prevalence,meeting,Hour,Movement,Guidelines,from,adolescence,systematic,review,meta,analysis,including,participants,countries,Background,Meeting,physical,activity,screen,sleep,duration,has,been,associated,positive,indicators,However,there,previous,analyses,that,have,examined,overall,adherence,across,Therefore,main,purpose,this,was,among,children,adolescents,worldwide,Methods,Four,electronic,databases,MEDLINE,Scopus,Cochrane,Database,Systematic,Reviews,were,searched,quantitative,studies,published,Spanish,English,between,January,May,Studies,conducted,apparently,healthy,reported,included,Results,Sixty,three,comprising,individuals,girls,aged,years,Overall,confidence,interval,youth,none,recommendations,Concerning,sex,significantly,lower,than,boys,differences,regarding,any,terms,group,respectively,Conversely,did,not,South,America,region,lowest,related,country,Human,Development,Index,Conclusion,Most,young,people,fail,particularly,those,who,Moreover,these,results,highlight,need,develop,specific,strategies,promote,movement,behaviors,early,stages,life

0.422556