Browsing UiS Brage by Author "Melberg, Tor Harald"

Now showing items 1-7 of 7

    • Duration of elevated heart rate Is an important predictor of exercise-induced troponin elevation 

      Bjørkavoll-Bergseth, Magnus; Kleiven, Øyunn; Auestad, Bjørn Henrik; Eftestøl, Trygve Christian; Oskal, Kay Raymond; Nygård, Martin; Skadberg, Øyvind; Aakre, Kristin Moberg; Melberg, Tor Harald; Gjesdal, Knut; Ørn, Stein (Peer reviewed; Journal article, 2020)
      Background The precise mechanisms causing cardiac troponin (cTn) increase after exercise remain to be determined. The aim of this study was to investigate the impact of heart rate (HR) on exercise‐induced cTn increase by ...

    • Echocardiographic assessment of myocardial efficiency predicts exercise performance 

      Erevik, Christine Bjørkvik; Kleiven, Øyunn; Frøysa, Vidar; Bjørkavoll-Bergseth, Magnus; Chivulescu, Ana Monica; Klæboe, Lars Gunnar; Dejgaard, Lars; Auestad, Bjørn Henrik; Skadberg, Øyvind; Melberg, Tor Harald; Urheim, Stig; Haugaa, Kristina Ingrid Helena Hermann; Edvardsen, Thor; Ørn, Stein (Peer reviewed; Journal article, 2024)
      Cardiac function is a major determinant of cardiopulmonary fitness. This study aimed to determine if novel echocardiographic myocardial function and efficiency parameters at rest can predict exercise performance during ...

    • Endurance exercise training volume is not associated with progression of coronary artery calcification 

      Kleiven, Øyunn; Bjørkavoll-Bergseth, Magnus; Omland, Torbjørn; Aakre, Kristin Moberg; Frøysa, Vidar; Erevik, Christine B.; Greve, Ole Jacob; Melberg, Tor Harald; Auestad, Bjørn Henrik; Skadberg, Øyvind; Edvardsen, Thor; Ørn, Stein (Peer reviewed; Journal article, 2020-02)
      Background Recent cross‐sectional studies have suggested a dose‐dependent relationship between lifelong exposure to physical activity and the burden of calcified coronary artery disease (CAD). No longitudinal studies have ...

    • High-Sensitivity Cardiac Troponin I and T Response Following Strenuous Activity is Attenuated by Smokeless Tobacco: NEEDED (North Sea Race Endurance Exercise Study) 2014 

      Skranes, Julia Brox; Kleiven, Øyunn; Aakre, Kristin Moberg; Skadberg, Øyvind; Melberg, Tor Harald; Omland, Torbjørn; Ørn, Stein (Peer reviewed; Journal article, 2020)
      Background Use of snus, a smokeless tobacco product, is increasing in Scandinavia. Strenuous physical activity is associated with an acute increase in high‐sensitivity cardiac troponin (swhs‐cTn) concentrations. Current ...

    • Occult obstructive coronary artery disease is associated with prolonged cardiac troponin elevation following strenuous exercise 

      Kleiven, Øyunn; Omland, Torbjørn; Skadberg, Øyvind; Melberg, Tor Harald; Bjørkavoll-Bergseth, Magnus; Auestad, Bjørn Henrik; Bergseth, Rolf; Greve, Ole Jacob; Aakre, Kristin Moberg; Ørn, Stein (Journal article; Peer reviewed, 2019-06)
      Background Sudden cardiac death among middle-aged recreational athletes is predominantly due to myocardial ischaemia. This study examined whether measuring cardiac troponin I and T (cTnI and cTnT) after strenuous exercise ...

    • Race duration and blood pressure are major predictors of exercise-induced cardiac troponin elevation 

      Kleiven, Øyunn; Omland, Torbjørn; Skadberg, Øyvind; Melberg, Tor Harald; Bjørkavoll-Bergseth, Magnus; Auestad, Bjørn Henrik; Bergseth, Rolf; Greve, Ole Jacob; Aakre, Kristin Moberg; Ørn, Stein (Journal article; Peer reviewed, 2019-02)
      Background The underlying mechanisms of the exercise-induced increase in cardiac troponins (cTn) are poorly understood. The aim of this study was to identify independent determinants of exercise-induced cTn increase in a ...

    • Regular consumption of cod liver oil is associated with reduced basal and exercise-induced C-reactive protein levels; a prospective observational trial 

      Hansen, Mette Wærstad; Ørn, Stein; Erevik, Christine Bjørkvik; Bjørkavoll-Bergseth, Magnus; Skadberg, Øyvind; Melberg, Tor Harald; Aakre, Kristin Moberg; Kleiven, Øyunn (Peer reviewed; Journal article, 2021-06)
      Background Dietary supplement use among recreational athletes is common, with the intention of reducing inflammation and improving recovery. We aimed to describe the relationship between omega-3 fatty acid supplement use ...