Blar i HVL Open på forfatter "Chen, Kong Y."

Viser treff 1-4 av 4

    • Association between free-living sleep and memory and attention in healthy adolescents 

      Stefansdóttir, Runa; Gundersen, Hilde; Rögnvaldsdóttir, Vaka; Lundervold, Alexander Selvikvåg; Gestdóttir, Sunna; Gudmundsdóttir, Sigridur Lara; Chen, Kong Y.; Brychta, Robert J.; Johannsson, Erlingur (Peer reviewed; Journal article, 2020)
      In laboratory studies, imposed sleep restriction consistently reduces cognitive performance. However, the association between objectively measured, free-living sleep and cognitive function has not been studied in older ...

    • Dynamic sitting: Measurement and associations with metabolic health 

      van der Berg, Julianne D.; Stehouwer, Coen D.A.; Bosma, Hans; Caserotti, Paolo; Eiríksdóttir, Gudny; Arnardóttir, Nanna Y.; van Domelen, Dane R.; Brychta, Robert J.; Chen, Kong Y.; Sveinsson, Thorarinn; Johannsson, Erlingur; Launer, Lenore J.; Gudnason, Vilmundur; Jonsson, Palmi V.; Harris, Tamara B.; Koster, Annemarie (Peer reviewed; Journal article, 2019)
      Dynamic sitting, such as fidgeting and desk work, might be associated with health, but remains difficult to identify out of accelerometry data. We examined, in a laboratory study, whether dynamic sitting can be identified ...

    • Less physical activity and more varied and disrupted sleep is associated with a less favorable metabolic profile in adolescents 

      Rognvaldsdottir, Veka; Brychta, Robert J.; Hrafnkelsdottir, Soffia M; Chen, Kong Y.; Arngrimsson, Sigurbjorn Arni; Johannsson, Erlingur; Gudmundsdottir, Sigridur Lara (Peer reviewed; Journal article, 2020)
      Background Sleep and physical activity are modifiable behaviors that play an important role in preventing overweight, obesity, and metabolic health problems. Studies of the association between concurrent objective measures ...

    • Screen Time and Body Image in Icelandic Adolescents: Sex-Specific Cross-Sectional and Longitudinal Associations 

      Hrafnkelsdottir, Soffia M; Brychta, Robert J; Rognvaldsdottir, Vaka; Chen, Kong Y.; Johannsson, Erlingur; Gudmundsdottir, Sigridur Lara; Arngrimsson, Sigurbjorn Arni (Peer reviewed; Journal article, 2022)
      Studies of adolescent body image and screen use are mostly limited to girls, and longitudinal data are scarce. We examined cross-sectional and longitudinal associations between these variables in mid-adolescent boys and ...