Luke Christopher Evans, Matthew P Greenwell, Victoria L Boult, Thomas Frederick Johnson
Characterizing the trophy hunting debate on Twitter
Conservation biology : the journal of the Society for Conservation Biology
increasing childrens physical activity pa school critical obesity prevention health promotion implementing novel lowcost pa programs offers potential contribute childrens inschool pa particularly resourceconstrained schools evaluation describes implementation fidelity reach dose two pa programs fueling learning exercise flex study thirteen diverse lowincome massachusetts elementary schools recruited randomized 100 mile club walkingrunning program n 7 chalkjust move classroom activity break pa program n 6 intervention programs delivered across two school years surveys program championsteachers children insession measurement childrens pa accelerometry actigraph gt3x subset schools key informant interviews used collect information implementation including fidelity dose reach sustainability calculate implementation score six chalkjust move schools implemented program years two schools randomized 100 mile club implement three schools implemented years implementing schools similar implementation scores range 03 100 mile club 20 vs chalkjust move 19 fidelity core enhanced elements differed programs 100 mile club schools dose program delivered greater chalkjust move schools 349 vs 197 min per week dose pa received per session also greater 100 mile club schools n 55 2 schools compared chalkjust move schools n 160 2 schools 136 min vs 27 min per session slightly higher proportion eligible children participated chalkjust move compared 100 mile club 540 vs 312 programs well received championsteachers students program implementation varied across programs schools erosion delivery seen two years however among implementing schools additional pa delivered received programs generally wellreceived although school resource issues remain barriers implemention evaluation demonstrates lowcost programs may enhance pa opportunities future research evaluate multiple programs implemented increase childrens pa school clinicaltrialsgov identifier nct02810834 registered may 11 2015