• Caffeine and endurance performance in athletes 

      Stadheim, Hans Kristian (Doctoral thesis, 2017)
      This thesis consists of five studies with additional unpublished results where the aim was to examine the effects of caffeine (CAF) ingestion on factors considered determining for endurance sport performance and fatigue. ...
    • Caffeine and performance over consecutive days of simulated competition 

      Stadheim, Hans Kristian; Spencer, Matt; Olsen, Raymond; Jensen, Jørgen (Journal article; Peer reviewed, 2015-09)
      Purpose: Performance improvements after caffeine (CAF) ingestion are well documented when using a 1-d protocol. In numerous competitions such as the Tour de France, Tour de Ski, world championships, and National College ...
    • Caffeine increases performance in cross-country double-poling time trial exercise 

      Stadheim, Hans Kristian; Kvamme, Bent; Olsen, Raymond; Ivy, John L.; Drevon, Christian A.; Ivy, John L.; Jensen, Jørgen (Journal article; Peer reviewed, 2013-11)
      PURPOSE: Caffeine (CAF) improves performance in both short- and long-duration running and cycling where performance relies on power output and endurance capacity of leg muscles. No studies have so far tested ...
    • Double-Poling Physiology and Kinematics of Elite Cross-Country Skiers: Specialized Long-Distance Versus All-Round Skiers 

      Skattebo, Øyvind; Losnegard, Thomas Johansen; Stadheim, Hans Kristian (Peer reviewed; Journal article, 2019)
      Purpose: Long-distance cross-country skiers specialize to compete in races >50 km predominantly using double poling (DP). This emphasizes the need for highly developed upper-body endurance capacities and an efficient DP ...
    • Effect of energy restriction and physical exercise intervention on phenotypic flexibility as examined by transcriptomics analyses of mRNA from adipose tissue and whole body magnetic resonance imaging 

      Lee, Sindre; Norheim, Frode; Langleite, Torgrim M.; Noreng, Hans J.; Storås, Trygve H.; Afman, Lydia A.; Frost, Gary; Bell, Jimmy D.; Thomas, E. Louise; Kolnes, Kristoffer J.; Tangen, Daniel S.; Stadheim, Hans Kristian; Gilfillan, Gregor D.; Gulseth, Hanne L.; Birkeland, Kåre I.; Jensen, Jørgen; Drevon, Christian A.; Holen, Torgeir (Journal article; Peer reviewed, 2016-11-07)
      Overweight and obesity lead to changes in adipose tissue such as inflammation and reduced insulin sensitivity. The aim of this study was to assess how altered energy balance by reduced food intake or enhanced physical ...
    • Exercise in vivo marks human myotubes in vitro: Training-induced increase in lipid metabolism 

      Lund, Jenny; Rustan, Arild; Løvsletten, Nils Gunnar; Mudry, Jonathan M.; Langleite, Torgrim Mikal; Feng, Yuan Zeng; Stensrud, Camilla; Brubak, Mari G; Drevon, Christian A; Birkeland, Kåre I.; Kolnes, Kristoffer Jensen; Johansen, Egil Ivar; Tangen, Daniel S.; Stadheim, Hans Kristian; Gulseth, Hanne Løvdal; Krook, Anna; Kase, Eili Tranheim; Jensen, Jørgen; Thoresen, G. Hege (Peer reviewed; Journal article, 2017)
      Background and aims: Physical activity has preventive as well as therapeutic benefits for overweight subjects. In this study we aimed to examine effects of in vivo exercise on in vitro metabolic adaptations by studying ...
    • Glucose metabolism and metabolic flexibility in cultured skeletal muscle cells is related to exercise status in young male subjects 

      Lund, Jenny; Tangen, Daniel S.; Wiig, Håvard; Stadheim, Hans Kristian; Siw, Anette Helle; Birk, Jesper B.; Ingemann-Hansen, Thorsten; Rustan, Arild; Thoresen, G. Hege; Wojtaszewski, Jørgen F.P.; Kase, Eili Tranheim; Jensen, Jørgen (Journal article; Peer reviewed, 2017)
      We hypothesised that skeletal muscles of healthy young people have a large variation in oxidative capacity and fibre-type composition, and aimed therefore to investigate glucose metabolism in biopsies and myotubes isolated ...
    • Higher lipid turnover and oxidation in cultured human myotubes from athletic versus sedentary young male subjects 

      Lund, Jenny; Helle, Siw A.; Li, Yuchuan; Løvsletten, Nils Gunnar; Stadheim, Hans Kristian; Jensen, Jørgen; Kase, Eili Tranheim; Thoresen, G. Hege; Rustan, Arild (Journal article; Peer reviewed, 2018)
      In this study we compared fatty acid (FA) metabolism in myotubes established from athletic and sedentary young subjects. Six healthy sedentary (maximal oxygen uptake (VO2max)≤ 46 ml/kg/min) and six healthy athletic ...
    • Interaction between plasma fetuin‐A and free fatty acids predicts changes in insulin sensitivity in response to long‐term exercise 

      Lee, Sindre; Norheim, Frode; Gulseth, Hanne L.; Langleite, Torgrim M.; Kolnes, Kristoffer J.; Tangen, Daniel S.; Stadheim, Hans Kristian; Gilfillan, Gregor D.; Holen, Torgeir; Birkeland, Kåre I,; Jensen, Jørgen; Drevon, Christian A. (Journal article; Peer reviewed, 2017-03)
      The hepatokine fetuin‐A can together with free fatty acids (FFAs) enhance adipose tissue (AT) inflammation and insulin resistance via toll‐like receptor 4 (TLR4). Although some of the health benefits of exercise can be ...
    • Regulation of angiopoietin-like protein 4 Production during and after exercise 

      Norheim, Frode; Hjorth, Marit; Langleite, Torgrim Mikal; Lee, Sindre; Holen, Torgeir; Bindesbøll, Christian; Stadheim, Hans Kristian; Gulseth, Hanne Lovdal; Birkeland, Kåre I.; Kielland, Anders; Jensen, Jørgen; Dalen, Knut Tomas; Drevon, Christian A. (Journal article; Peer reviewed, 2014-08-19)
      Angiopoietin-like protein 4 (ANGPTL4) may regulate lipoprotein lipase-dependent plasma clearance of triacylglycerol from skeletal muscle during exercise. The aim of this study was to examine the importance of muscle in ...
    • Subsarcolemmal lipid droplet responses to a combined endurance and strength exercise intervention 

      Li, Yuchuan; Lee, Sindre; Langleite, Torgrim; Norheim, Frode; Pourteymour, Shirin; Jensen, Jørgen; Stadheim, Hans Kristian; Storås, Tryggve H.; Davanger, Svend; Gulseth, Hanne L.; Birkeland, Kåre I.; Drevon, Christian A.; Holen, Torgeir (Journal article; Peer reviewed, 2014)
      Muscle lipid stores and insulin sensitivity have a recognized association although the mechanism remains unclear. We investigated how a 12‐week supervised combined endurance and strength exercise intervention influenced ...
    • The influence of pole length on performance, O2-cost and kinematics in double poling 

      Losnegard, Thomas; Myklebust, Håvard; Skattebo, Øyvind; Stadheim, Hans Kristian; Sandbakk, Øyvind; Hallén, Jostein (Journal article; Peer reviewed, 2016-04-27)
      Purpose: In the double poling cross-country skiing technique, the propulsive forces are transferred solely through the poles. The aim of the present study was to investigate how pole length influences double poling ...