• 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 ...
    • The antidepressant effect of intermittent theta burst stimulation (iTBS): study protocol for a randomized double-blind sham-controlled trial 

      Ørbo, Marte Christine; Grønli, Ole Kristian; Larsen, Camilla; Vangberg, Torgil Riise; Friborg, Oddgeir; Turi, Zsolt; Mittner, Matthias Bodo; Csifcsak, Gabor; Aslaksen, Per M (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-02)
      Background Intermittent theta burst stimulation (iTBS) when applied over the left dorsolateral prefrontal cortex (DLPFC) has been shown to be equally effective and safe to treat depression compared to traditional repetitive transcranial magnetic stimulation (rTMS) paradigms. This protocol describes a funded single-centre, double-blind, randomized placebo-controlled, clinical trial to investigate ...
    • Attitudes of mental health providers towards adoption of evidence-based interventions: relationship to work-place, staff roles and social and psychological factors at work 

      Rye, Marte; Friborg, Oddgeir; Skre, Ingunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-08)
      <p><i>Background - </i>Gaining insight into factors influencing the adoption of evidence-based interventions (EBI) is essential to ensuring their sustainability in the mental healthcare setting. This article describes 1) differences between professional staff roles in attitudes towards EBI and 2) individual and organizational predictors of attitudes towards adopting EBI. <p><i>Methods - </i>The ...
    • 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 ...
    • Can the health related quality of life measure QOLIBRI- overall scale (OS) be of use after stroke? A validation study 

      Heiberg, Guri Anita; Pedersen, Synne Garder; Friborg, Oddgeir; Nielsen, Jørgen Feldbæk; Holm, Henriette Stabel; von Steinbüchel, Nicole; Arntzen, Cathrine; Anke, Audny (Journal article; Tidsskriftartikkel; Peer reviewed, 2018)
      <i><p>Background</i>: Brief measures of health-related quality of life (HRQOL) that assess both patient-reported functioning and well-being after stroke are scarce. The objective of this study was to examine reliability and validity of one of these measures, the patient-reported Quality of Life after Brain Injury–Overall Scale (QOLIBRI-OS), in patients after stroke.</p> <i><p>Methods</i>: Stroke ...
    • Change characteristics of health-related quality of life and its association with post-stroke fatigue at four-year follow-up 

      Garder Pedersen, Synne; Anke, Audny Gabriele Wagner; Løkholm, Mari Thoresen; Halvorsen, Marianne; Kirkevold, Marit; Heiberg, Guri Anita; Ørbo, Marte Christine; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-04)
      The long-term consequences of stroke may be highly individual and multifaceted. The question of how such individual differences may unfold and change beyond the first year after stroke may be of substantial clinical interest regarding which subgroups show more favourable and unfavourable rehabilitation trajectories. The current study explored functional trajectories from 1 to 4 years post-stroke ...
    • Comorbidity of personality disorders in anxiety disorders : a meta-analysis of 30 years of research 

      Friborg, Oddgeir; Martinussen, Monica; Kaiser, Sabine; Øvergård, Karl-Tore; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Background. A comprehensive meta-analysis to identify the proportions of comorbid personality disorders (PD) across the major subtypes of anxiety disorders (AD) has not previously been published. Methods. A literature search identified 125 empirical papers from the period 1980-2010 on patients with panic disorders, social phobia, generalised anxiety, obsessive-compulsive (OCD) and post-traumatic ...
    • The comorbidity of personality disorders in eating disorders: a meta-analysis 

      Martinussen, Monica; Friborg, Oddgeir; Schmierer, Phoebe; Kaiser, Sabine; Øvergård, Karl Tore; Neunhoeffer, Anna-Lena; Martinsen, Egil Wilhelm; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-19)
      Purpose:<br> The present meta-analysis summarized the proportion of comorbid personality disorders (PDs) in patients with anorexia (AN) and bulimia nervosa (BN), respectively, and examined possible moderating variables.<br> Methods:<br> A search of the databases PsychINFO, Embase, and Medline for the period 1980–2016 identified 87 studies from 18 different countries.<br> Results:<br> The ...
    • The cross-cultural validity of the Resilience Scale for Adults: A comparison between Norway and Brazil 

      Hjemdal, Odin; Roazzi, A.; Dias, M G; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-18)
      Background: The resilience construct is of increasing interest in clinical and health psychology. The Resilience Scale for Adults (RSA) is a measure of protective factors. The evidence supporting its construct validity is good, however evidence of cross-cultural validity is modest. The present study explored the factorial invariance of the RSA across a Brazilian and a Norwegian sample, as well as ...
    • Daily associations between sleep and pain in patients with chronic musculoskeletal pain 

      Abeler, Karin; Bergvik, Svein; Sand, Trond; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-02)
      Patients with chronic pain commonly report sleep problems, and the evidence for a relationship between sleep disturbance and pain seems robust. The day‐to‐day associations between these constructs are less well studied, particularly with objective sleep measures such as actigraphy. Moreover, the concurrent presence of negative affective symptoms, as well as seasonality effects at extreme latitudes ...
    • Demographic and psychological predictors of Grade Point Average (GPA) in North-Norway: A particular analysis of cognitive/school-related and literacy problems 

      Sæle, Rannveig Grøm; Sørlie, Tore; Nergård-Nilssen, Trude; Ottosen, Karl-Ottar; Goll, Charlotte Bjørnskov; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Approximately 30 % of students drop out from Norwegian upper secondary schools. Academic achievement, as indexed by Grade Point Average (GPA) is one of the strongest predictors of dropout. The present study aimed to examine the role of cognitive, school-related and affective/psychological predictors of GPA. In addition, we examined the psychometric properties of a new scale for literacy problems ...
    • Discrimination amongst Arctic Indigenous Sami and Non-Sami Populations in Norway - The SAMINOR 2 Questionnaire Study 

      Hansen, Ketil Lenert; Minton, Stephen James; Friborg, Oddgeir; Sørlie, Tore (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Background:<br> Recent research demonstrates that for many indigenous Sami people, experiencing ethnic discrimination is a regular occurrence. The present study was designed to provide estimates of the prevalence of self-reported discrimination in order to identify specific settings where discrimination happened, to identify perpetrators and to examine individuals’ responses to the discrimination. ...
    • Do Childhood Boarding School Experiences Predict Health, Well-Being and Disability Pension in Adults? A SAMINOR Study 

      Friborg, Oddgeir; Sørlie, Tore; Schei, Berit; Javo, Cecilie; Sørbye, Øystein; Hansen, Ketil Lenert (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-01)
      Indigenous Sámi and Kven minority children in Norway were during the 20th century placed at boarding schools to hasten their adoption of the Norwegian majority language and culture. This is the first population-based study examining health, well-being and disability pension rates among these children. Data stem from two epidemiological studies conducted in 2003/04 (SAMINOR 1) and 2012 (SAMINOR 2) ...
    • Do Norwegian Sami and non-indigenous individuals understand questions about mental health similarly? A SAMINOR 2 study 

      Sørlie, Tore; Hansen, Ketil Lenert; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-05)
      The Western culturally developed Hopkins Symptom Checklist (HSCL-10) is a self-report measure of mental distress widely used for both clinical and epidemiological purposes – also in the multiethnic epidemiological SAMINOR studies in Northern Norway, but without any proper cross-cultural validation. Our objective was to test invariance of the HSCL-10 measurements among Sami and the non-indigenous ...
    • Does personality moderate the effects on mindfulness training for medical and psychology students? 

      de Vibe, Michael; Solhaug, Ida; Tyssen, Reidar; Friborg, Oddgeir; Rosenvinge, Jan H; Sørlie, Tore; Halland, Even; Bjørndal, Arild (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The majority of mindfulness research to date has reported only on the group-level effects of interventions. Therefore, there is a need to better understand who is most likely to benefit from mindfulness interventions. This study reports on moderation analyses from a two-centre randomised controlled trial of mindfulness-based stress reduction (MBSR) among 288 medical and psychology students. ...
    • 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) ...
    • The Effect of Cognitive–Behavioral Therapy as an Antidepressive Treatment Is Falling: Reply to Ljòtsson et al. (2017) and Cristea et al. (2017) 

      Friborg, Oddgeir; Johnsen, Tom Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03)
      This article critically reassesses the nonlinear reanalysis by Ljótsson, Hedman, Mattsson, and Andersson (2017) and reviews Cristea et al.’s (2017) extension of our original meta-analysis (Johnsen & Friborg, 2015) reporting a decline in the effects of cognitive–behavioral therapy (CBT) for treating unipolar depression. Ljótsson et al. fitted a piecewise meta-regression model to the data, indicating ...
    • Effectiveness of a Cognitive Behavioral Therapy for Dysfunctional Eating among Patients Admitted for Bariatric Surgery: A Randomized Controlled Trial 

      Gade, Hege; Hjelmesæth, Jøran; Rosenvinge, Jan H; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Effects of cognitive behavior therapy on eating behaviors, affective symptoms, and weight loss after bariatric surgery: a randomized clinical trial 

      Hjelmesæth, Jøran; Rosenvinge, Jan H; Gade, Hege; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-15)
      <p><i>Background</i>: The long-term effects of presurgical psychological interventions on weight loss, eating behaviors, affective symptoms, and health-related quality of life remain uncertain. This study aimed to assess the 4-year effects of cognitive behavioral therapy (CBT) before bariatric surgery on these outcomes.</p> <p><i>Methods</i>: Single-center randomized controlled parallel-group ...