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dc.contributor.authorMønness, Erik Neslein
dc.contributor.authorSjølie, Astrid N.
dc.date.accessioned2010-02-24T12:24:38Z
dc.date.issued2009
dc.identifier.citationMønness, E & Sjølie, A.N. (2009). An alternative design for small-scale health experiments in schools : does daily walking produce benefits in physical performance? Child: care, health and development, 35(6), 858-867en
dc.identifier.urihttp://hdl.handle.net/11250/134436
dc.descriptionDenne artikkelen er en pre-print av artikkelen publisert i Child: care, health and development. Dette er den versjonen som ble sendt til fagfellevurdering og mangler endringer som er gjort etter dette.en
dc.descriptionDen publiserte versjonen av artikkelen kan du finne her: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2214.2009.00917.x/abstract
dc.description.abstractBackground: The mainstream randomized clinical trial is not always feasible in a school setting. There might be practical and ethical issues that make dividing school classes into an intervention and a control group impossible or undesirable, and there is a need to explore the validity of alternative designs and analyses. Methods: An alternative to a randomized clinical trial in a physical performance experiment at a school is introduced an evaluated. The before intervention data is utilized as control data for the intervention data in addition to adjust for pre-intervention differences. The strict class-year structure of school data makes this possible. In a rural school in inland XXX1 all school children joined the project of walking in a rugged terrain outside school 20 minutes every school day during a school year. Measurements of low back static endurance, hamstrings flexibility, standing balance and cardio-vascular fitness were made before and after the intervention. Since intervention and “aging” were confounded, the special use of the pre-intervention data, “age-adjusted”, is proposed to solve this issue. A comparison with having an independent control group is performed. Results: The alternative analysing method is judged to yield valid results without having an independent control group. The age-adjusted analyses showed 11 % increase in low back static endurance, 8 % increase in hamstrings flexibility, 69 % increase in balance, and 6-13 % increase in cardio-vascular fitness. The effects were largest among those children who had the lowest performances before the intervention. Conclusion: The introduced statistical methods displays that in a school population, evaluations from an experiment can be made without an external control group. A 20-minutes walk during school time for one year seemed to improve physical performance.en
dc.format.extent210242 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoengen
dc.publisherBlackwell Publishingen
dc.relation.urihttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-2214.2009.00917.x/abstract
dc.relation.urihttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-2214.2009.00917.x/abstract
dc.subjectfysisk aktiviteten
dc.subjectdaglige spasertureren
dc.subjectskolebarnen
dc.titleAn alternative design for small-scale health experiments in schools : does daily walking produce benefits in physical performance?en
dc.typeJournal articleen
dc.typePeer reviewed
dc.subject.nsiVDP::Social science: 200::Social science in sports: 330::Physical education and sport psychology: 333en
dc.source.pagenumber858-867en
dc.source.volume35en
dc.source.journalChild: care, health and developmenten
dc.source.issue6en


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