简介：ＡｎＡｍｐｌｅａｎｄＶｉｇｏｒｏｕｓＦｏｒｅｓｔｒｙａｎｄＮａｔｕｒｅＰｒｏｔｅｃｔｉｏｎＣｏｍｍｕｎｉｔｙＡｒｅａ￥ＢｙＷｅｎＹｕａｎｇｕａｎｇ；ＬｉａｎｇＨｏｎｇｗｅｎＭａｓｈａｎＣｏｕｎｔｙ，ｓｉｔｕａｔｅｄｉｎｔｈｅＧｕａｎｇｘｉＺｈｕａｎｇ...

简介：Background:Althoughemergingresearchisdemonstratingthepotentialhealthimpactofexergaming,investigationshaveprimarilybeenconductedinlaboratorysettingsamongsmallsampleswithshort-terminterventions.Informationontheeffectivenessofexergaminginunderservedchildren’sobjectivephysicalactivity(PA)inpopulation-basedsettingsisalsoscarce.Moreover,mostempiricalstudieshaveonlyincluded1typeofexergameintheintervention.Therefore,thisstudy’spurposewastoinvestigatethelong-termimpactofamultigameexergaminginterventionamongunderservedchildrenintegratedwithinschoolcurricula.Specifically,thisstudyexaminedtheeffectofexergamingonchildren’saccelerometer-determinedsedentarybehavior(SB),lightPA,moderate-to-vigorousPA(MVPA),andenergyexpenditure(EE)over2yearsascomparedwithregularphysicaleducation(PE)classes.Methods:Atotalof261second-andthird-gradechildren(134girls,127boys;meanage8.27years)wererecruitedfrom2Texaselementaryschools.Children’spre-test3-daySB,lightPA,MVPA,andEEatschoolwereassessedinthefallof2012.Participantswereassignedto1of2groups:(1)exergaming/PEgroup(125minweeklyofexergaming-basedPAprogram)and(2)comparisongroup(125minweeklyofPE).PA(SB,lightPA,andMVPA)andEEoutcomevariableswereassessedagainin2013(post-test)and2014(follow-up).Results:SignificanttimeeffectswereobservedforSB(F(1,162)=25.0,p<0.01,η~2=0.14),lightPA(F(1,162)=9.6,p<0.01,η~2=0.06),andMVPA(F(1,162)=6.2,p=0.01,η~2=0.04)butnotforEE(F(1,162)=0.63,p>0.05,η~2=0.004).Subsequentpairwisecomparisonsrevealedsignificantincreasesfrompre-topost-testforlightPA(p<0.01),MVPA(p<0.01),andEE(p=0.02)withnochangesinSB(p>0.05).Conversely,significantdecreasesoccurredinlightPA(p<0.01)frompost-testtofollow-upwithnodifferencesseeninMVPA(p=0.08)andEE(p=0.06)overthesametimeperiod.Asignificantincreasewasseen,however,forSBfrompost-testtofollow-up.Conclusion:Exergami

简介：Purpose:Thisstudyaimstoanalyzetheeffectsofa3-monthvigorousphysicalactivity(VPA)interventiononeatingbehaviorandbodycompositioninoverweightandobesechildrenandadolescents.Methods:Forty-sevenparticipants(7–16years)tookpartinthestudy:28wereassignedtotheinterventiongroup(IG)(10boysand18girls)and19inacontrolgroup(CG)(8boysand11girls).Bodycomposition(dual-energyX-rayabsorptiometry),anthropometrics(bodymass,height,andbodymassindex(BMI)),andeatingbehaviortraits(Three-FactorEatingQuestionnaire-R21C)weredeterminedbeforeandaftertheVPAintervention.Results:AdecreaseinthepercentageofbodyfatandBMI(-2.8%and-1.8%,respectively),andanincreaseinmostleanmassvariableswerefoundintheIG(allp≤0.05).Inrelationtotheeatingbehaviortraits,IGsubjectsshoweda14%reductionintheEmotionalEatingscore(p=0.04),whileCognitiveRestraintscoredidnotchangeaftertheVPAintervention.ThebaselinefactorsofthequestionnairepredictedchangesinbodymassandfatmassvariablesonlyintheCG.Conclusion:A3-monthVPAinterventioninfluencedeatingbehaviorsofoverweightorobeseyoung,especiallytheEmotionalEatingfactor,inthepresenceoffavorablebodycompositionchanges.

简介：Background:Identifyingfactorsassociatedwithphysicalactivity(PA)isusefulinplanninginterventionsandpolicies.Theaimofthisstudywastoidentifysociodemographic,biological,andpsychosocialfactorsassociatedwithPAperformedinschoolsettings.Methods:Datacollectedforthepresentstudyincludedgender,age,socioeconomicstatus,bodyfatpercentage,aerobicfitness,self-efficacy,attitudes,peerandparentalsupport,andperceptionofschoolenvironment.Dependentvariableswerelight-intensityPA(LPA)andmoderate-to-vigorousintensityPA(MVPA)performedduringschooltime,recesses,andphysicaleducation(PE)classes.Multipleregressionanalyseswereperformed.Results:Participatingadolescents(n=567,53%female,12.9±5.3years)spent5%ofschooltimeinMVPAand27%inLPA,15%ofrecessesinMVPAand44%inLPA,and16%ofPEclassesinMVPAand41%inLPA.BoysengagedinmoreMVPAinallcategories.AgewasinverselyrelatedwithMVPAandLPAinallperiods,whereasbodyfatpercentagewasinverselyrelatedwithMVPAinschooltimeandPEclasses.AttitudewasinverselyrelatedwithMVPAinallperiodsandwithLPAinrecesses.ConsideringPAtobegoodandenjoyablewaspositivelyassociatedwithMVPAinschooltime.Conclusion:AdolescentsspentlittletimeinPAduringschool.Futureinterventionsshouldimplementenjoyableactivitiesatschool.