• Accuracy of Tracking Devices’ Ability to Assess Exercise Energy Expenditure in Professional Female Soccer Players: Implications for Quantifying Energy Availability 

      Tutu Dasa, Marcus Småvik; Friborg, Oddgeir; Kristoffersen, Morten; Pettersen, Gunn; Sundgot-Borgen, Jorunn; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-14)
      The purpose of the study was to assess the accuracy of commonly used GPS/accelerometer-based tracking devices in the estimation of exercise energy expenditure (EEE) during high-intensity intermittent exercise. A total of 13 female soccer players competing at the highest level in Norway (age 20.5 ± 4.3 years; height 168.4 ± 5.1 cm; weight 64.1 ± 5.3 kg; fat free mass 49.7 ± 4.2 kg) completed a single ...
    • Allmennlegers erfaringer med spiseforstyrrelser 

      Aalmen, Mia Holtet; Rosenvinge, Jan H; Holund, Andreas; Pettersen, Gunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-15)
      <i>BAKGRUNN</i> - Allmennlegen spiller en nøkkelrolle i å utrede, diagnostisere og behandle spiseforstyrrelser. Denne rollen utfordres av kliniske særtrekk ved pasientgruppen, legenes arbeidshverdag og samarbeidsforhold med spesialisthelsetjenesten. Hensikten med denne studien var å få mer kunnskap om hvordan allmennleger møter slike utfordringer.<p> <p><i>MATERIALE OG METODE</i> - Fem allmennleger ...
    • Are adolescent elite athletes less psychologically distressed than controls? A cross-sectional study of 966 Norwegian adolescents 

      Rosenvinge, Jan H; Sundgot-Borgen, Jorunn; Pettersen, Gunn; Martinsen, Marianne; Stornæs, Annett Victoria; Pensgaard, Anne Marte (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-16)
      <p><i>Introduction</i>: Psychological distress is increasing among adolescents and clusters with other mental health problems such as eating problems. The aim of this study was to investigate the prevalence of psychological distress among young elite athletes and age-matched controls and whether prevalence figures may be attributed to perfectionism and eating problems.</p> <p><i>Methods</i>: ...
    • Are pro-inflammatory markers associated with psychological distress in a cross-sectional study of healthy adolescents 15–17 years of age? The Fit Futures study 

      Linkas, Jonas; Ahmed, Luai A.; Csifcsak, Gabor; Emaus, Nina; Furberg, Anne-Sofie; Grimnes, Guri; Pettersen, Gunn; Rognmo, Kamilla; Christoffersen, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-15)
      Background - Inflammatory markers have been associated with depression and anxiety disorder in adolescents. Less is known about the association between inflammation and subclinical symptoms in the form of psychological distress. We investigated prevalence of psychological distress and examined the associations between common pro-inflammatory markers and psychological distress in an adolescent ...
    • Body composition and physical fitness in women with bulimia nervosa or binge-eating disorder. 

      Mathisen, Therese Fostervold; Rosenvinge, Jan H; Friborg, Oddgeir; Pettersen, Gunn; Stensrud, Trine; Hansen, Bjørge Hermann; Underhaug, Karoline; Teinung, Elisabeth; Vrabel, KariAnne; Svendsen, Mette; Bratland-Sanda, Solfrid; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-23)
      <p><i>Objective</i>: Knowledge about physical fitness in women with bulimia nervosa (BN) or binge‐eating disorder (BED) is sparse. Previous studies have measured physical activity largely through self‐report, and physical fitness variables are mainly restricted to body mass index (BMI) and bone mineral density. We expanded the current knowledge in these groups by including a wider range of physical ...
    • C-Reactive Protein and TGF-α Predict Psychological Distress at Two Years of Follow-Up in Healthy Adolescent Boys: The Fit Futures Study 

      Linkas, Jonas; Ahmed, Luai A.; Csifcsak, Gabor; Emaus, Nina; Furberg, Anne-Sofie; Grimnes, Guri; Pettersen, Gunn; Rognmo, Kamilla; Christoffersen, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-11)
      Objective: The scarcity of research on associations between inflammatory markers and symptoms of depression and anxiety during adolescence has yielded inconsistent results. Further, not all studies have controlled for potential confounders. We explored the associations between baseline inflammatory markers and psychological distress including moderators at follow-up in a Norwegian adolescent population ...
    • Challenges in using patient involvement principles in substance use treatment 

      Sterri, Njål Herman E.; Rosenvinge, Jan H; Pettersen, Gunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-13)
      Background - Health professionals are responsible for implementing patient involvement (PI) in the choice of treatment approach. Previous studies within the field of substance use disorder (SUD) treatment have shown positive patient experiences with PI. However, little is known about challenges experienced by health professionals in converting principles of PI into clinical practice.<p> <p>Aims ...
    • Clinical confidence following an interprofessional educational program on eating disorders for health care professionals: a qualitative analysis 

      Pettersen, Gunn; Rosenvinge, Jan H; Thune-Larsen, Kari-Brith; Wynn, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      There are an increasing number of educational programs to improve clinical competence and skills to treat mental disorders. For complex disorders there is also a focus on improving the quality of interprofessional work. This paper reports on interprofessional outputs of an educational program on eating disorders. A total of 207 professionals who completed the program were requested to describe up ...
    • Cross-sectional study of the differences between measured, perceived and desired body size and their relations with self-perceived health in young adults: The Tromsø Study - Fit Futures 2 

      Sand, Anne-Sofie; Furberg, Anne-Sofie; Lian, Olaug S; Nielsen, Christopher Sivert; Pettersen, Gunn; Winther, Anne; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-09)
      Aims: The aim of this study was to explore the relationships between measured body size (body mass index (BMI)), perceived body size, weight change wishes and self-perceived health in young adults. Methods: The participants were recruited from a school-based population study in Norway, the Tromsø Study: Fit Futures 2, carried out in 2012–2013. A total of 629 young women and men (aged 18–23 years) ...
    • Does the Healthy Body Image program improve lifestyle habits among high-schoolstudents? A radndomised controlled trial With 12-month follow-up 

      Borgen, Christine Sundgot; Friborg, Oddgeir; Kolle, Elin; Torstveit, Monica Klungland; Sundgot-Borgen, Jorunn; Engen, Kethe Marie Elgesem; Rosenvinge, Jan H; Pettersen, Gunn; Bratland-Sanda, Solfrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-05)
      <i>Objectives</i> - Positive embodiment and healthy lifestyle habits seem to be related; therefore, stimulating positive embodiment should promote healthy lifestyle habits. In the current study, we delivered the Healthy Body Image (HBI) intervention among Norwegian high school students and examined the effects on healthy lifestyle habits.<p> <p><i>Methods</i> - The HBI intervention comprises three ...
    • Effect of A Healthy Body Image intervention on risk- and protective factors for eating disorders: A cluster randomized controlled trial 

      Svantorp-Tveiten, Kethe Marie Engen; Torstveit, Monica Klungland; Rosenvinge, Jan H; Sundgot-Borgen, Christine; Friborg, Oddgeir; Bratland-Sanda, Solfrid; Pettersen, Gunn; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-28)
      Objective - To investigate the immediate and 12-months effects of a school-based intervention aiming to reduce risk and enhance protective factors for eating disorder development in high school boys and girls.<p> <p>Method - In total, 4,149 adolescents from 30 high schools were eligible for inclusion and 2,446 consented to participate and were randomly allocated to the Healthy Body Image (HBI) ...
    • Effectiveness and acceptability of the physical exercise and dietary therapy in a healthy life center 

      Mathisen, Therese Fostervold; Pettersen, Gunn; Rosenvinge, Jan H; Schmidt, Ulrike H.; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-17)
      Objective - The high burden of eating disorders (EDs) and limited availability of treatment speaks of a need to explore new avenues for treatment delivery. To understand if new treatment avenues are helpful and acceptable to patients, we investigated the effectiveness of Physical Exercise and Dietary Therapy (PED-t) in participants with bulimia nervosa or binge-eating disorder, and acceptability ...
    • "Eksistensiell omsorg" i bachelorutdanningen i sykepleie - En dokumentanalyse 

      Tornøe, Kirsten; Hillestad, Adelheid Hummelvoll; Breistig, Sigrund; Rosenvinge, Jan H; Pettersen, Gunn; Sørlie, Venke; Hegertun, Rigmor; Eriksen, Liss Trine; Bakland, Maria; Prause, Daniel (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-22)
      Bakgrunn: Sykepleiere møter pasienter der kunnskaper og ferdigheter innen eksistensiell omsorg kan utgjøre en stor forskjell i hvordan pasientene håndterer eksistensielle utfordringer. Både helse- og utdanningsmyndigheter har klare forventninger om at sykepleiere har den nødvendige kompetansen til å ivareta pasientenes eksistensielle behov. En viktig forutsetning er da at undervisningstilbudet ved ...
    • Energy expenditure, dietary intake and energy availability in female professional football players 

      Dasa, Marcus Småvik; Friborg, Oddgeir; Kristoffersen, Morten; Pettersen, Gunn; Plasqui, Guy; Sundgot-Borgen, Jorunn; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-24)
      Objectives: To quantify energy expenditure and intake in professional female footballers playing on a national and/or international level. Second, to determine the prevalence of low energy availability among these players, defined as <30 kcal/kg fat-free mass (FFM)/day. Methods: Fifty-one players completed a 14-day prospective observational study during the 2021/2022 football season. Energy ...
    • Epidemiology of eating disorders part III: Social epidemiology and case definitions revisited. 

      Rosenvinge, Jan H; Pettersen, Gunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-09)
      The previous papers in this series outlined a historical panorama and presented updated knowledge about putative risk factors and how eating disorders are distributed in various populations. In this final paper, we discuss in what way comorbidity findings and transdiagnostic issues may change our conceptions about ‘an epidemiological case’ from the current definition of eating disorders based on the ...
    • Evaluating the suitability of the Low Energy Availability in Females Questionnaire (LEAF-Q) for female footballers 

      Dasa, Marcus Småvik; Friborg, Oddgeir; Kristoffersen, Morten; Pettersen, Gunn; Sagen, Jørn Vegard; Sundgot-Borgen, Jorunn; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-13)
      Background - The Low Energy Availability in Females Questionnaire (LEAF-Q) is a screening tool developed to detect endurance athletes and dancers at risk for development of persistent low energy availability (LEA) and the female athlete triad (Triad). This study investigated the applicability of the LEAF-Q in a cohort of sixty professional female football players.<p> <p>Methods - The participants ...
    • From existing to living: Exploring the meaning of recovery and a sober life after a long duration of a substance use disorder 

      Pettersen, Gunn; Nergaard Bjerke, Trond; Hoxmark, Ellen Margrethe; Sterri, Njål Herman E.; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-24)
      Aim: The study explores how former patients with substance use disorder (SUD) experience the benefits and challenges of a reoriented identity and way of living. Methods: Semi-structured interviews were conducted with 10 participants who had completed treatment for SUD and considered themselves either recovered or in an ongoing rehabilitation process. Interview transcripts were analysed using the ...
    • The healthy body image (HBI) intervention: Effects of a school-based cluster-randomized controlled trial with 12-months follow-up 

      Borgen, Christine Sundgot; Friborg, Oddgeir; Kolle, Elin; Engen, Kethe Marie Elgesem; Sundgot-Borgen, Jorunn; Rosenvinge, Jan H; Pettersen, Gunn; Torstveit, Monica Klungland; Piran, Niva; Bratland-Sanda, Solfrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-28)
      We examined the effects of the Healthy Body Image (HBI) intervention on positive embodiment and health-related quality of life among Norwegian high school students. The intervention comprised three interactive workshops, with body image, media literacy, and lifestyle as main themes. In total, 2,446 12th grade boys (43%) and girls (mean age 16.8 years) from 30 high schools participated in a ...
    • The Healthy Body Image intervention and reduction in eating disorder symptomatology and muscle building supplement use in high school students: a study of mediating factors 

      Svantorp-Tveiten, Kethe Marie Engen; Ivarsson, Andreas; Torstveit, Monica Klungland; Sundgot-Borgen, Christine; Mathisen, Therese Fostervold; Bratland-Sanda, Solfrid; Rosenvinge, Jan H; Friborg, Oddgeir; Pettersen, Gunn; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-28)
      Background: Mediation analysis is important to test the theoretical framework underpinning an intervention. We therefore aimed to investigate if the healthy body image (HBI) intervention’s effect on eating disorder (ED) symptomatology and use of muscle building supplements was mediated by the change in risk and protective factors for ED development and muscle building supplement use. <p> <p>Methods: ...
    • How do males recover from eating disorders? An interview study 

      Pettersen, Gunn; Wallin, Karin; Bjôrk, Tabita (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      <i>Objectives</i> - The aim of the current study is to investigate what males experience as helpful in their recovery process from eating disorders (ED).<p> <p><i>Methods</i> - Qualitative in-depth interviews within a phenomenological approach, and using content analysis to excavate overarching text themes.<p> <p><i>Setting</i> - Norway and Sweden.<p> <p><i>Participants</i> - Included were ...