Maxime Legendre, Marilou Côté, Annie Aimé, Marie-Christine Brault, Jacinthe Dion, Catherine Bégin
The children's eating attitudes test: French validation of a short version
Eating and weight disorders : EWD
world health organization estimates 19 million deaths worldwide attributable physical inactivity least 26 million deaths result overweight obese addition estimates physical inactivity causes 10 16 cases breast cancer colon rectal cancers well type 2 diabetes 22 coronary heart disease burden chronic diseases rapidly increased recent decadesthe purpose systematic review summarize evidence effectiveness schoolbased interventions promoting physical activity fitness children adolescentsthe search strategy included searching several databases october 2011 addition reference lists included articles background papers reviewed potentially relevant studies well references relevant cochrane reviews primary authors included studies contacted needed additional informationto included intervention relevant public health practice focused health promotion activities conducted physicians implemented facilitated promoted staff local public health units implemented school setting aimed increasing physical activity included schoolattending children implemented minimum 12 weeks addition review limited randomized controlled trials reported outcomes children adolescents aged 6 18 years primary outcomes included rates moderate vigorous physical activity school day time engaged moderate vigorous physical activity school day time spent watching television secondary outcomes related physical health status measures including systolic diastolic blood pressure blood cholesterol body mass index bmi maximal oxygen uptake vo2max pulse ratestandardized tools used two independent reviewers assess study relevance data extraction addition study assessed risk bias specified cochrane handbook systematic reviews interventions discrepancies existed discussion occurred consensus reached results summarized narratively due wide variations populations interventions evaluated outcomes measuredin original review 13841 records identified screened 302 studies assessed eligibility 26 studies included review evidence schoolbased physical activity interventions positive impact four nine outcome measures specifically positive effects observed duration physical activity television viewing vo2 max blood cholesterol generally schoolbased interventions little effect physical activity rates systolic diastolic blood pressure bmi pulse rate minimum combination printed educational materials changes school curriculum promote physical activity resulted positive effectsin update given addition three new inclusion criteria randomized design schoolattending children invited participate minimum 12week intervention 12 original 26 studies excluded addition studies published july 2007 october 2011 evaluating effectiveness schoolbased physical interventions identified relevant included total additional 2378 titles screened 285 unique studies deemed potentially relevant 30 met relevance criteria included update update includes 44 studies represents complete data 36593 study participants duration interventions ranged 12 weeks six yearsgenerally majority studies included update despite randomized controlled trials minimum moderate risk bias results therefore must interpreted caution changes outcomes observed update exception blood cholesterol physical activity rates example blood cholesterol longer positively impacted upon schoolbased physical activity interventions however evidence suggest schoolbased physical activity interventions led improvement proportion children engaged moderate vigorous physical activity school hours odds ratio 274 95 confidence interval ci 201 375 improvements physical activity rates observed original review children adolescents exposed intervention also spent time engaged moderate vigorous physical activity results across studies ranging five 45 min spent less time watching television results range five 60 min less per day improved vo2max results across studies ranged 16 37 mlkg per min however overall conclusions update differ significantly reported original reviewthe evidence suggests ongoing implementation schoolbased physical activity interventions time given positive effects behavior one physical health status measure however given studies minimum moderate risk bias magnitude effect generally small results interpreted cautiously additional research longterm impact interventions needed