{"id":6064,"date":"2026-10-19T09:48:25","date_gmt":"2026-10-19T09:48:25","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-a-menntavisindasvidi-vaka-rognvaldsdottir\/"},"modified":"2026-10-19T09:48:25","modified_gmt":"2026-10-19T09:48:25","slug":"doktorsvorn-a-menntavisindasvidi-vaka-rognvaldsdottir","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-a-menntavisindasvidi-vaka-rognvaldsdottir\/","title":{"rendered":"Doktorsv\u00f6rn \u00e1 Menntav\u00edsindasvi\u00f0i Vaka R\u00f6gnvaldsd\u00f3ttir"},"content":{"rendered":"
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Doktorsefni<\/strong> er Vaka R\u00f6gnvaldsd\u00f3ttir<\/p>\n

Heiti ritger\u00f0ar er Svefn, hreyfing og heilsa \u00edslenskra ungmenna<\/strong><\/p>\n

Andm\u00e6lendu<\/strong>r eru dr. Kenneth P. Wright,\u00a0 pr\u00f3fessor vi\u00f0 University of Colorado Boulder, Bandar\u00edkjunum,\u00a0 og dr. Erna Sif Arnard\u00f3ttir, ranns\u00f3knars\u00e9rfr\u00e6\u00f0ingur vi\u00f0 H\u00e1sk\u00f3lann \u00ed Reykjav\u00edk<\/p>\n

Lei\u00f0beinandi<\/strong> var dr.\u00a0 Erlingur S. J\u00f3hannsson, pr\u00f3fessor vi\u00f0 H\u00e1sk\u00f3la \u00cdslands, og me\u00f0lei\u00f0beinand<\/strong>i dr. Sigr\u00ed\u00f0ur L\u00e1ra Gu\u00f0mundsd\u00f3ttir, d\u00f3sent vi\u00f0 H\u00e1sk\u00f3la \u00cdslands.<\/p>\n

Auk \u00feeirra sat \u00ed doktorsnefnd dr. Kong Chen, pr\u00f3fessor vi\u00f0 The National Institutes of Health, Washington DC.<\/p>\n

Doktorsv\u00f6rn st\u00fdrir <\/strong>Dr. \u00a0Anna Sigr\u00ed\u00f0ur \u00d3lafsd\u00f3ttir, deildarforseti \u00a0Deildar heilsueflingar, \u00ed\u00fer\u00f3tta og t\u00f3mstunda Menntav\u00edsindasvi\u00f0s
<\/strong><\/p>\n

Vegna fj\u00f6ldatakmarkana geta einungis 50 manns veri\u00f0 vi\u00f0staddir v\u00f6rnina \u00ed H\u00e1t\u00ed\u00f0asalnum, en h\u00e6gt ver\u00f0ur a\u00f0 fylgjast me\u00f0 v\u00f6rninni \u00ed beinni \u00fatsendingu<\/strong><\/p>\n

About database<\/strong><\/p>\n

Bakgrunnur<\/p>\n

Svefn og hreyfing eru grundvallar\u00fe\u00e6ttir fyrir heilsu mannsins. Al\u00fej\u00f3\u00f0legar svefnr\u00e1\u00f0leggingar fyrir ungmenni gera r\u00e1\u00f0 fyrir 8-10 klukkustunda n\u00e6tursvefni og a\u00f0 minnsta kosti 60 m\u00edn\u00fatna daglegri hreyfingu af mi\u00f0lungs- e\u00f0a mikilli \u00e1kef\u00f0 til a\u00f0 vi\u00f0halda g\u00f3\u00f0ri heilsu.<\/p>\n

Markmi\u00f0<\/p>\n

A\u00f0almarkmi\u00f0 ranns\u00f3knarinnar var a\u00f0 m\u00e6la svefn og hreyfingu \u00edslenskra ungmenna \u00ed s\u00ednu n\u00e1tt\u00farulega umhverfi me\u00f0 hreyfim\u00e6lum og spurningalistum og sko\u00f0a tengsl svefns (lengdar, g\u00e6\u00f0a og t\u00edmasetingar) og hreyfingar vi\u00f0 holdafar.<\/p>\n

A\u00f0fer\u00f0ir<\/p>\n

G\u00f6gnum var safna\u00f0 \u00e1 vorm\u00e1nu\u00f0um 2015 me\u00f0al 315 grunnsk\u00f3lanema (15 \u00e1ra). Framhaldsranns\u00f3kn f\u00f3r fram \u00e1ri\u00f0 2017 og var g\u00f6gnum safna\u00f0 fr\u00e1 168 \u00fe\u00e1tttakendum (17 \u00e1ra). G\u00f6gnum um svefn og hreyfingu var safna\u00f0 me\u00f0 hr\u00f6\u00f0unarm\u00e6lum og spurningalistum. L\u00edkamsm\u00e6lingar f\u00f3ru allar fram \u00e1 ranns\u00f3knarstofu (2017) e\u00f0a \u00ed sk\u00f3lum \u00fe\u00e1tttakenda (2015). L\u00edkamssamsetning, m\u00e6ld me\u00f0 tv\u00edorku r\u00f6ntgengeisla-gleypnim\u00e6lingu f\u00f3r fram \u00ed Hjartavernd.<\/p>\n

Ni\u00f0urst\u00f6\u00f0ur<\/p>\n

F\u00e6stir n\u00e1\u00f0u a\u00f0 uppfylla r\u00e1\u00f0leggingar um 8-10 klukkustunda n\u00e6tursvefn \u00feegar svefn var m\u00e6ldur me\u00f0 hr\u00f6\u00f0unarm\u00e6lum. \u00deetta \u00e1tti s\u00e9rstaklega vi\u00f0 \u00e1 sk\u00f3lad\u00f6gum (7 klst\/n\u00f3tt liggjandi \u00ed r\u00fami, 6,2 klst\/n\u00f3tt svefn, um 11% n\u00e1 r\u00e1\u00f0leggingum). \u00deeir sem uppfylltu r\u00e1\u00f0leggingar um daglega hreyfingu sv\u00e1fu ekki m\u00e6lanlega lengur. Aukin hreyfing og minni breytileiki \u00e1 svefnlengd tengdust l\u00e6gri fitupr\u00f3sentu.<\/p>\n

Samantekt<\/p>\n

Ni\u00f0urst\u00f6\u00f0ur ranns\u00f3knarinnar benda til \u00feess a\u00f0 l\u00edfsst\u00edll ungmennanna vir\u00f0ist ekki endurspegla vi\u00f0mi\u00f0 opinberra a\u00f0ila um daglega hreyfingu og svefn. Sko\u00f0a \u00fearf \u00fe\u00e1 \u00fe\u00e6tti sem hafa \u00e1hrif \u00e1 svefnvenjur og \u00fe\u00e1ttt\u00f6ku \u00ed daglegri hreyfingu svo b\u00e6ta megi heilsu \u00edslenskra ungmenna.<\/p>\n

Um doktorsefni\u00f0 <\/strong><\/p>\n

Vaka R\u00f6gnvaldsd\u00f3ttir er f\u00e6dd \u00ed Reykjav\u00edk \u00e1ri\u00f0 1976. H\u00fan lauk \u00ed\u00fer\u00f3ttakennarapr\u00f3fi fr\u00e1 Kennarah\u00e1sk\u00f3la \u00cdslands \u00e1ri\u00f0 1999, B.sc. \u00ed vi\u00f0skiptafr\u00e6\u00f0i fr\u00e1 Auburn University Montgomery \u00e1ri\u00f0 2002 og M.sc. \u00ed \u00ed\u00fer\u00f3tta- og heilsufr\u00e6\u00f0i fr\u00e1 H\u00e1sk\u00f3la \u00cdslands. Vaka hefur starfa\u00f0 sem kennari vi\u00f0 grunn- og framhaldssk\u00f3la og h\u00e1sk\u00f3la. Vaka er a\u00f0junkt vi\u00f0 Deild heilsueflingar, \u00ed\u00fer\u00f3tta og t\u00f3mstunda \u00e1 Menntav\u00edsindasvi\u00f0i H\u00e1sk\u00f3la \u00cdslands. Foreldrar V\u00f6ku eru Kolbr\u00fan \u00c1sgr\u00edmsd\u00f3ttir og R\u00f6gnvaldur Gunnarsson. Samb\u00fdlisma\u00f0ur V\u00f6ku er Magn\u00fas Hrafn Magn\u00fasson og b\u00f6rn \u00feeirra eru Tinna D\u00f6gg (2003), Hekla (2006) og Magn\u00fas Dagur (2014). Helstu \u00e1hugam\u00e1l V\u00f6ku eru hreyfing, \u00fativist, matur, menning og svefn.<\/p>\n

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