Browsing Brage NIH by Author "Grydeland, May"
Now showing items 1-20 of 21
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Adolescents’ prospective screen time by gender and parental education, the mediation of parental influences
Totland, Torunn Holm; Bjelland, Mona; Lien, Nanna; Bergh, Ingunn Holden; Gebremariam, Mekdes K.; Grydeland, May; Ommundsen, Yngvar; Andersen, Lene F. (Journal article; Peer reviewed, 2013-07-06)Background: The present study investigated associations in gender dyads of parents’ and adolescents’ time spent on television and video viewing (TV/DVD), and computer and electronic game use (PC/games) at the ages of 11 ... -
Are screen-based sedentary behaviors longitudinally associated with dietary behaviors and leisure-time physical activity in the transition into adolescence?
Gebremariam, Mekdes K.; Bergh, Ingunn Holden; Andersen, Lene F.; Ommundsen, Yngvar; Totland, Torunn Holm; Bjelland, Mona; Grydeland, May; Lien, Nanna (Journal article; Peer reviewed, 2013-01-25)Background: There is a need for more longitudinal studies investigating the associations between screen-based sedentary behaviors (SB), dietary behaviors and leisure-time physical activity (PA). Methods: In the HEIA ... -
Changes in adolescents’ and parents’ intakes of sugar-sweetened beverages, fruit and vegetables after 20 months: results from the HEIA study a comprehensive, multi-component school-based randomized trial
Bjelland, Mona; Hausken, Solveig E. Sand; Bergh, Ingunn Holden; Grydeland, May; Klepp, Knut Inge; Andersen, Lene F.; Totland, Torunn Holm; Lien, Nanna (Journal article; Peer reviewed, 2015-03-20)Background: Interventions conducted in school-aged children often involve parents, but few studies have reported effects on parents’ own behaviour as a result of these interventions. Objective: To determine if a ... -
Changes in adolescents’ intake of sugarsweetened beverages and sedentary behaviour: results at 8 month mid-way assessment of the HEIA study - a comprehensive, multi-component school-based randomized trial
Bjelland, Mona; Bergh, Ingunn Holden; Grydeland, May; Klepp, Knut-Inge; Andersen, Lene F.; Anderssen, Sigmund A.; Ommundsen, Yngvar; Lien, Nanna (Journal article; Peer reviewed, 2011-06-17)Background: Inconsistent effects of school-based obesity prevention interventions may be related to how different subgroups receive them. The aim of this study was to evaluate the effect of an intervention program, ... -
Comparison of free-living physical activity measurements between ActiGraph GT3X-BT and Fitbit Charge 3 in young people with haemophilia
Matlary, Ruth Elise Dybvik; Glosli, Heidi; Rueegg, Corina Silvia; Grydeland, May; Holme, Pål André (Peer reviewed; Journal article, 2022)Introduction: Measurement of physical activity (PA) using commercial activity trackers such as Fitbit devices has become increasingly popular, also for people with haemophilia (PWH). The accuracy of the Fitbit model Charge ... -
Design of a 20-month comprehensive, multicomponent school-based randomised trial to promote healthy weight development among 11-13 year olds: the HEalth In Adolescents study
Lien, Nanna; Bjelland, Mona; Bergh, Ingunn Holden; Grydeland, May; Anderssen, Sigmund A.; Ommundsen, Yngvar; Andersen, Lene F.; Henriksen, Hege Berg; Klepp, Knut-Inge (Journal article; Peer reviewed, 2010-11)Background and purpose: The lack of effective school-based interventions for preventing obesity in children has caused a call for longer duration of interventions and better reporting on design and evaluation methodology. ... -
Device-measured physical activity and cardiovascular disease risk in adolescent childhood cancer survivors: A physical activity in childhood cancer survivors (PACCS) study
Bratteteig, Mari; Anderssen, Sigmund Alfred; Rueegg, Corina Silvia; Ruud, Ellen; Torsvik, Ingrid Kristin; Kriemler, Susi; Grydeland, May (Peer reviewed; Journal article, 2022)Objectives: We aimed to compare cardiovascular disease (CVD) risk factors in childhood cancer survivors (CCS) with age- and sex-stratified reference material and examine the association between physical activity (PA) ... -
Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: Secular changes between 2005, 2011 and 2018
Dalene, Knut Eirik; Kolle, Elin; Steene-Johannessen, Jostein; Ekelund, Ulf; Grydeland, May; Anderssen, Sigmund Alfred; Tarp, Jakob; Hansen, Bjørge Herman (Peer reviewed; Journal article, 2022)Background: Access to screen-based media has been revolutionized during the past two decades. How this has affected sedentary time (ST) accumulation in children is poorly understood. Methods: This study, based on the ... -
Does tracking of dietary behaviours differ by parental education in children during the transition into adolescence?
Totland, Torunn Holm; Gebremariam, Mekdes K.; Lien, Nanna; Bjelland, Mona; Grydeland, May; Bergh, Ingunn Holden; Klepp, Knut-Inge; Andersen, Lene F. (Journal article; Peer reviewed, 2012-07-09)Objective: The present study investigates the changes and tracking of dietary behaviours in Norwegian 11-year-olds and examines the association between parental education and dietary tracking over a time period of 20 ... -
The effect of a school-based intervention on physical activity, cardiorespiratory fitness and muscle strength: The School in Motion cluster randomized trial
Kolle, Elin; Solberg, Runar Barstad; Säfvenbom, Reidar; Dyrstad, Sindre Mikal; Berntsen, Sveinung; Resaland, Geir Kåre; Ekelund, Ulf; Anderssen, Sigmund Alfred; Steene-Johannessen, Jostein; Grydeland, May (Peer reviewed; Journal article, 2020)Background: Physical activity (PA) declines throughout adolescence, therefore PA promotion during this period is important. We analyzed the effect of two school-based PA interventions on daily PA levels, cardiorespiratory ... -
Factors associated with physical activity in young people with haemophilia A on prophylaxis
Matlary, Ruth Elise Dybvik; Grydeland, May; Glosli, Heidi; Rüegg, Corina Silvia; Holme, Pål André (Peer reviewed; Journal article, 2023)Introduction: Physical activity (PA) is influenced by numerous factors, and the literature describing why people with haemophilia (PWH) are physically active or not is inconclusive. Aims: To investigate factors associated ... -
Gender-specific mediators of the association between parental education and adiposity among adolescents: The HEIA study
Arah, Onyebuchi A.; Bergh, Ingunn Holden; Ommundsen, Yngvar; Totland, Torunn Holm; Bjelland, Mona; Grydeland, May; Lien, Nanna; Gebremariam, Mekdes K.; Andersen, Lene F. (Peer reviewed; Journal article, 2019)Identifying the mechanisms behind socioeconomic inequalities in adiposity among youth is vital for efforts aimed at combating these inequalities. The study explored whether a broad range of behavioral and familial factors ... -
Mechanical and free living comparisons of four generations of the Actigraph activity monitor
Ried-Larsen, Mathias; Brønd, Jan Christian; Brage, Søren; Hansen, Bjørge Herman; Grydeland, May; Andersen, Lars Bo; Møller, Niels C. (Journal article; Peer reviewed, 2012-09-12)Background More studies include multiple generations of the Actigraph activity monitor. So far no studies have compared the output including the newest generation and investigated the impact on the output of the activity ... -
Overweight and waist circumference among Norwegian 11-year-olds and associations with reported parental overweight and waist circumference : the HEIA study
Bjelland, Mona; Lien, Nanna; Bergh, Ingunn Holden; Grydeland, May; Anderssen, Sigmund A.; Klepp, Knut-Inge; Ommundsen, Yngvar; Andersen, Lene F. (Journal article; Peer reviewed, 2010-11)Aims: The aim of this paper is to investigate anthropometric characteristics in 11-year-old Norwegian by gender and parental education, and to study associations between adolescents’ overweight and waist circumference ... -
Physical activity among adolescent cancer survivors: The PACCS study
Grydeland, May; Bratteteig, Mari; Rüegg, Corina Silvia; Lie, Hanne Cathrine; Thorsen, Lene; Larsen, Elna Hamilton; Brügmann-Pieper, Sabine Kristin; Torsvik, Ingrid Kristin; Götte, Miriam; Lähteenmäki, Päivi Maria; Kriemler, Susi; Fridh, Martin Kaj; Anderssen, Sigmund Alfred; Ruud, Ellen (Peer reviewed; Journal article, 2023)Objectives: Physical activity (PA) may modify risks of late effects after cancer. We aimed to examine levels of PA and sedentary time (ST) in a large, international sample of adolescent childhood cancer survivors in relation ... -
Physical activity behaviors and screen time in young childhood cancer survivors: The Physical Activity in Childhood Cancer Survivors Study
Bratteteig, Mari; Rueegg, Corina Silvia; Lie, Hanne Cathrine; Thorsen, Lene; Larsen, Elna Hamilton; Larsen, Marie Hamilton; Torsvik, Ingrid Kristin; Götte, Miriam; Järvelä, Liisa S.; Kriemler, Susi; Larsen, Hanne B.; Anderssen, Sigmund Alfred; Ruud, Ellen; Grydeland, May (Peer reviewed; Journal article, 2024)Purpose: In childhood cancer survivors (CCS), high physical activity (PA) and low sedentary time may reduce risks of late-effects. PA behaviors and screen time, and how they relate to moderate-to-vigorous PA (MVPA) in CCS, ... -
Physical activity in 9–15 year-old pediatric cancer survivors compared to a nationwide sample
Götte, Miriam; Basteck, Simon; Beller, Ronja; Gauß, Gabriele; Schmidt, Steffen; Burchartz, Alexander; Kolb, Simon; Grydeland, May; Reinhardt, Dirk (Peer reviewed; Journal article, 2022)Introduction: Sufficient physical activity (PA) has the potential to mitigate late effects of cancer, but objective data of PA levels in adolescents are scarce. The aim of this study was to investigate differences in PA ... -
Physical activity in Norwegian teenagers and young adults with haemophilia A compared to general population peers
Matlary, Ruth Elise Dybvik; Grydeland, May; Glosli, Heidi; Rüegg, Corina Silvia; Holme, Pål André (Peer reviewed; Journal article, 2023)Introduction: Limited evidence exists on objectively measured habitual physical activity (PA) of young people with haemophilia (PWH). Aims: To compare different outcomes of objective PA between young PWH A and controls ... -
Post-intervention effects on screen behaviours and mediating effect of parental regulation: The HEalth In Adolescents study – a multi-component school-based randomized controlled trial
van Stralen, Maartje M.; Bjelland, Mona; Grydeland, May; Lien, Nanna; Klepp, Knut Inge; Anderssen, Sigmund A.; Ommundsen, Yngvar (Journal article; Peer reviewed, 2014-02-23)Background: To improve effectiveness of future screen behaviour interventions, one needs to know whether an intervention works via the proposed mediating mechanisms and whether the intervention is equally effective among ... -
School-based obesity prevention in Norway: Correlates of weight statues and intervention effects on physical activity and body composition: The Health in Adolescents Study (HEIA)
Grydeland, May (Doctoral thesis, 2013)Prevention of childhood obesity is an international public health priority given the significant impact of obesity on short- and long-term functioning, health and wellbeing. Although recommended in several recent reviews, ...