Browsing HVL Open by Author "Rognvaldsdottir, Vaka"
Now showing items 1-4 of 4
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Changes in health-related lifestyle choices of university students before and during the COVID-19 pandemic: Associations between food choices, physical activity and health
Jakobsdottir, Greta; Stefansdottir, Runa Sif; Gestsdottir, Sunna; Stefansson, Vignir; Johannsson, Erlingur Sigurdur; Rognvaldsdottir, Vaka; Gisladottir, Thordis Lilja (Peer reviewed; Journal article, 2023)The COVID-19 pandemic has had a profound effect on our lives and society, influencing both individuals’ lifestyles and habits. Recent research shows that anxiety and loneliness have continued to rise, along with changes ... -
Health and well-being of university students before and during COVID-19 pandemic: A gender comparison
Gestsdottir, Sunna; Gísladóttir, Þórdís; Stefansdottir, Runa; Johannsson, Erlingur; Jakobsdottir, Greta; Rognvaldsdottir, Vaka (Peer reviewed; Journal article, 2021)Objective COVID-19 has affected people’s health in various ways. University students are a particularly sensitive group for mental and physical health issues. The aim of this study was to assess and compare the mental and ... -
Longitudinal development and tracking of cardiorespiratory fitness from childhood to adolescence
Ingvarsdottir, Thuridur Helga; Johannsson, Erlingur Sigurdur; Rognvaldsdottir, Vaka; Stefansdottir, Runa Sif; Arnardottir, Nanna Yr (Peer reviewed; Journal article, 2024)Background Cardiorespiratory fitness (CRF) is an important indicator of health in childhood and adolescence but longitudinal studies on the development and tracking of CRF from childhood to adolescence are scarce. Ob ... -
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 ...