Blar i forfatter "Ettema, Gertjan"

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    • The dynamics of the anaerobic energy contribution during a simulated mass-start competition while roller-ski skating on a treadmill. 

      Noordhof, Dionne; Danielsson, Marius Lyng; Skovereng, Knut; Danielsen, Jørgen; Seeberg, Trine Margrethe; Haugnes, Pål; Kocbach, Jan; Ettema, Gertjan; Sandbakk, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-08)
      The purposes of this study were: 1) to investigate the anaerobic energy contribution during a simulated cross-country (XC) skiing mass-start competition while roller-ski skating on a treadmill; 2) to investigate the relationship between the recovery of the anaerobic energy reserves and performance; and 3) to compare the gross efficiency (GE) method and maximal accumulated oxygen deficit (MAOD) to ...

    • Effects of upper-body sprint-interval training on strength and endurance capacities in female cross-country skiers 

      Vandbakk, Kristine; Welde, Boye; Hovstein, Andrea; Baumgart, Julia Kathrin; Ettema, Gertjan; Karlsen, Trine; Sandbakk, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-27)
      Thermal conductivity and thermal diffusivity of ionic liquids (ILs) are investigated in this work. A hot disk method for ILs thermal conductivity and thermal diffusivity measurement is utilized. Firstly, the thermal conductivity of water is measured to check the reliability of the hot disk method. In addition, the thermal conductivity of pure ILs, including BmimBF<sub>4</sub>, BmimPF<sub>6</sub>, ...

    • The influence of race tactics for performance in the heats of an international sprint cross-country skiing competition 

      Haugnes, Pål; Kocbach, Jan; Kjøsen Talsnes, Rune; Noordhof, Dionne; Ettema, Gertjan; Sandbakk, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-09)
      The purpose of this study was to examine the influence of race tactics for performance in the heats of an international sprint cross-country (XC) skiing competition in the classical style. Thirty elite male XC skiers (age: 24±3 years, sprint International Ski Federation [FIS] points: 61±27) performed a sprint time-trial (STT) followed by one to three ‘knock-out’ heats on a 1.7 km racecourse. An ...

    • The influence of tactical positioning on performance in sprint cross-country skiing 

      Haugnes, Pål; Kocbach, Jan Martin; Noordhof, Dionne Adriana; Kjøsen Talsnes, Rune; Ettema, Gertjan; Sandbakk, Øyvind Bucher (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-23)
      The purpose of this study was to examine the influence of tactical positioning on performance in the heats of sprint cross-country (XC) skiing among men and women and the consistency of overtaking events over repeated competitions on the same racecourse. Thirty male and thirty female elite to world-class level skiers within each competition [(sprint International Ski and Snowboard Federation (FIS) ...