Blar i Institutt for samfunnsmedisin og sykepleie på forfatter "Øvretveit, Karsten"

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    • Can there be two speeds in a clean peloton? Performance strategies in modern road cycling 

      Øvretveit, Karsten (Journal article; Peer reviewed, 2024)

    • Capacity and confidence: What can be gleaned from the link between perceived and actual physical ability in Brazilian jiu-jitsu practitioners? 

      Øvretveit, Karsten (Peer reviewed; Journal article, 2020)
      Among the many modern iterations of grappling-based combat sports, Brazilian jiu-jitsu (BJJ) has emerged as one of the most popular. In addition to its well-established effectiveness in competition, it is considered to be ...

    • Evolusjonær eller epistemisk diskordans? Steinalderdiettens mange ansikt 

      Øvretveit, Karsten (Peer reviewed; Journal article, 2022)
      Steinalderdietten er en populær alternativ diett inspirert av teorier om hva våre forfedre spiste før neolittisk tid. Den baserer seg på en antatt uoverensstemmelse mellom menneskets gener og våre moderne omgivelser, noe ...

    • Exiting the Cave: Exploring the Transition From Paleolithic to Omnivorous Dieting 

      Øvretveit, Karsten; Mehus, Ingar (Peer reviewed; Journal article, 2022)
      This is a follow-up of a recent case study of the Paleolithic diet that investigates dietary changes, including energy intake, food sources, and macronutrient and micronutrient distribution, associated with a transition ...

    • Helsetjenestekostnader ved overvekt og fedme på individnivå versus populasjonsnivå – en HUNT-studie 

      Edwards, Christina Hansen; Bjørnelv, Gudrun Maria Waaler; Øvretveit, Karsten; Hveem, Kristian; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2023)
      BAKGRUNN Måten forskningsresultater blir presentert på, påvirker hvordan resultatene blir tolket. Vi viser betydningen av å presentere sammenhengen mellom kroppsmasseindeks (BMI) og helsetjenestekostnader både fra et ...

    • Mastery goals are associated with training effort in Brazilian jiu-jitsu 

      Øvretveit, Karsten; Sæther, Stig Arve; Mehus, Ingar (Journal article; Peer reviewed, 2019)
      Problem statement: Brazilian jiu-jitsu (BJJ) is a grappling-based combat sport with a high attrition rate. Central to BJJ training is simulated competition in the form of sparring, which may have implications for athlete ...

    • Mechanisms and trainability of peripheral fatigue in grappling 

      Øvretveit, Karsten; Laginestra, Fabio Giuseppe (Journal article, 2021)
      Grappling is an ancient form of unarmed combat that has evolved into several distinct combat sports, such as wrestling, judo, and Brazilian jiu-jitsu. Despite different styles and rulesets, these sports share several ...

    • Metabolske og moralske effekter av eksogene ketoner 

      Øvretveit, Karsten (Peer reviewed; Journal article, 2023)
      Ketoner, eller ketonlegemer, omtales vanligvis i forbindelse med ketogene dietter og blir av enkelte beskrevet som et fjerde makronæringsstoff på bakgrunn av sine energigivende egenskaper. De siste årene har ketoner i ...

    • Polygenic risk scores associate with blood pressure traits across the lifespan 

      Øvretveit, Karsten; Ingeström, Emma Maria Lovisa; Spitieris, Michail; Tragante, Vinicius; Wade, Kaitlin Hazel; Thomas, Laurent Francois; Wolford, Brooke Nichole; Wisløff, Ulrik; Gudbjartsson, Daníel Fannar; Hólm, Hilma Asbjørn; Stefánsson, Kári; Brumpton, Ben Michael; Hveem, Kristian (Peer reviewed; Journal article, 2023)
      Aims Hypertension is a major modifiable cause of morbidity and mortality that affects over 1 billion people worldwide. Blood pressure (BP) traits have a strong genetic component that can be quantified with polygenic risk ...

    • Position before submission? Techniques and tactics in competitive no-gi Brazilian jiu-jitsu 

      Spanias, Charalampos; Kirk, Christopher; Øvretveit, Karsten (Peer reviewed; Journal article, 2022)
      Brazilian jiu-jitsu (BJJ) is a grappling-based combat sport performed either with a traditional uniform, the gi, or without, known as no-gi. Differences between the two when it comes to gripping, pace, and ruleset can ...

    • Post-Exercise Hypotension in Brazilian Jiu-Jitsu 

      Belo, Wesley Rodrigues; de Castro, Lucas Fenta; Palmieri, Diego Cesar; dos Santos, Luiz Gustavo Dias; Herrera-Valenzuela, Tomás; dos Santos, Marco Antonio Ferreira; Øvretveit, Karsten; Simão, Roberto (Peer reviewed; Journal article, 2020)
      Hypertension is a leading preventable cause of morbidity and mortality worldwide. Exercise is a widely recommended treatment strategy that has been shown to cause both acute and chronic reductions in blood pressure. This ...

    • The Quantified Caveman: A Yearlong Case Study of the Paleolithic Diet 

      Øvretveit, Karsten (Peer reviewed; Journal article, 2022)
      This is a detailed study of nutritional and lifestyle data on a single individual who adhered to the Paleolithic diet (PD) for a full year. The dietary intake was compared with evidence-based guidelines and various PD ...

    • Sex-specific and polygenic effects underlying resting heart rate and associated risk of cardiovascular disease 

      Nordeidet, Ada Nilsen; Klevjer, Marie; Øvretveit, Karsten; Madssen, Erik; Wisløff, Ulrik; Brumpton, Ben Michael; Bye, Anja (Journal article; Peer reviewed, 2024)
      Aims: Resting heart rate (RHR) is associated with cardiovascular disease (CVD) and mortality. This study aimed to identify genetic loci associated with RHR, develop a genome-wide polygenic risk score (PRS) for RHR, and ...