Blar i forfatter "Noordhof, Dionne"

Viser treff 1-8 av 8

    • The aerobic and anaerobic contribution during repeated 30-s sprints in elite cyclists 

      Almquist, Nicki Winfield; Sandbakk, Øyvind; Rønnestad, Bent R.; Noordhof, Dionne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-26)
      Although the ability to sprint repeatedly is crucial in road cycling races, the changes in aerobic and anaerobic power when sprinting during prolonged cycling has not been investigated in competitive elite cyclists. Here, we used the gross efficiency (GE)-method to investigate: (1) the absolute and relative aerobic and anaerobic contributions during 3 × 30-s sprints included each hour during a 3-h ...

    • 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 ...

    • Effect of carbohydrate content in a pre-event meal on endurance performance and performance-determining factors: a randomize-controlled trial. 

      Aandahl, Mats; Noordhof, Dionne; Tjønna, Arnt Erik; Sandbakk, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-26)
      Although the ability to sprint repeatedly is crucial in road cycling races, the changes in aerobic and anaerobic power when sprinting during prolonged cycling has not been investigated in competitive elite cyclists. Here, we used the gross efficiency (GE)-method to investigate: (1) the absolute and relative aerobic and anaerobic contributions during 3 × 30-s sprints included each hour during a 3-h ...

    • Indian Endurance Athletes' Menstrual Cycle: Practices, Knowledge, Communication, Health, and Changes in Perceptions Across the Phases 

      Majumder, Tanugatri; de Martin Topranin, Virginia; Sandbakk, Øyvind; Noordhof, Dionne (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-08)
      Purpose: To describe menstrual cycle (MC)-related practices, knowledge, communication, and health in Indian endurance athletes and to investigate the changes in their perception of sleep quality, readiness to train, training quality, fitness, and performance across the MC. Methods: Data on female Indian athletes (N = 96, age 22 [3] y) competing in 7 endurance sports at (inter)national and state level ...

    • 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 ...

    • Physiological and Biomechanical Determinants of Sprint Ability Following Variable Intensity Exercise When Roller Ski Skating 

      Seeberg, Trine Margrethe; Kocbach, Jan; Danielsen, Jørgen; Noordhof, Dionne; Skovereng, Knut; Hatling Haugnes, Pål; Tjønnås, Johannes; Sandbakk, Øyvind Bucher (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-25)
      The most common race format in cross-country (XC) skiing is the mass-start event, which is under-explored in the scientific literature. To explore factors important for XC skiing mass-starts, the main purpose of this study was to investigate physiological and biomechanical determinants of sprint ability following variable intensity exercise when roller ski skating. Thirteen elite male XC skiers ...

    • Physiological and Biomechanical Responses to Cross-Country Skiing in Varying Terrain: Low- vs. High-Intensity 

      Seeberg, Trine Margrethe; Kocbach, Jan; Danielsen, Jørgen; Noordhof, Dionne; Skovereng, Knut; Meyer, Frederic; Sandbakk, Øyvind Bucher (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-11)
      The purposes of our study were to investigate the physiological and biomechanical responses to low-intensity (LI) and high-intensity (HI) roller ski skating on varying terrain and compare these responses between training intensities. Nine elite male skiers performed treadmill roller skiing consisting of two 21 min sessions (7 × 3 min laps) at LI and HI with the same set inclines and intensity-dependent ...

    • Prevalence and Self-Perceived Experiences With the Use of Hormonal Contraceptives Among Competitive Female Cross-Country Skiers and Biathletes in Norway: The FENDURA Project 

      Engseth, Tina Pettersen; Andersson, Erik P; Solli, Guro Strøm; Morseth, Bente; Thomassen, Tor Oskar; Noordhof, Dionne; Sandbakk, Øyvind; Welde, Boye (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-14)
      Purpose: To investigate the prevalence of hormonal contraceptive (HC) use by female cross-country (XC) skiers and biathletes competing at a national and/or international level, their reasons for HC use, and to compare negative symptoms related to the HC-/menstrual cycle in HC users and non-HC users. Additionally, to characterize the self-perceived influence of HC use on training and performance.<p ...