Blar i Brage NIH på forfatter "Helland, Christian"

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    • Eccentric cycling does not improve cycling performance in amateur cyclists 

      Paulsen, Gøran; Eidsheim, Hedda; Helland, Christian; Seynnes, Olivier R.; Solberg, Paul André; Rønnestad, Bent (Peer reviewed; Journal article, 2019)
      Eccentric cycling training induces muscle hypertrophy and increases joint power output in non-athletes. Moreover, eccentric cycling can be considered a movement-specific type of strength training for cyclists, but it is ...

    • Force-velocity profiling in athletes: Reliability and agreement across methods 

      Lindberg, Kolbjørn Andreas; Bjørnsen, Thomas; Helland, Christian; Rønnestad, Bent; Haugen, Thomas André; Østerås, Sindre; Kristoffersen, Morten; Paulsen, Gøran; Solberg, Paul André; Frank, Martin Thorsen; Midttun, Magnus; Sæland, Fredrik (Peer reviewed; Journal article, 2021)
      The aim of the study was to examine the test-retest reliability and agreement across methods for assessing individual force-velocity (FV) profiles of the lower limbs in athletes. Using a multicenter approach, 27 male ...

    • Mechanical properties of the patellar tendon in elite volleyball players with and without patellar tendinopathy 

      Helland, Christian; Bojsen-Møller, Jens; Raastad, Truls; Seynnes, Olivier R.; Moltubakk, Marie M.; Jakobsen, Vidar; Bahr, Roald (Journal article; Peer reviewed, 2013)
      Background: Although differences in mechanical properties between symptomatic and healthy tendons have been observed for the Achilles tendon, the impact of tendinopathy on patellar tendon mechanics is not fully documented. ...

    • Muskel-senesystemet hos elite volleyballspillere med og uten hopperkne (jumper's knee): Med hovedvekt på spenst og patellarsenens mekaniske og materielle egenskaper 

      Helland, Christian (Master thesis, 2012)
      Innledning: Hopperkne (jumper’s knee; patellar tendinopati) er en belastningsskade i patellarsenen, der en prevalens på hele 45% har blitt rapportert hos mannlige volleyballspillere. I tillegg har det blitt rapportert at ...

    • Strength and Power Testing of Athletes: A Multicenter Study of Test-Retest Reliability 

      Lindberg, Kolbjørn Andreas; Solberg, Paul André; Bjørnsen, Thomas; Helland, Christian; Rønnestad, Bent; Frank, Martin; Haugen, Tommy; Østerås, Sindre; Kristoffersen, Morten; Midttun, Magnus; Sæland, Fredrik; Eythorsdottir, Ingrid Eir Thorp; Paulsen, Gøran (Peer reviewed; Journal article, 2022)
      Purpose:This study examined the test–retest reliability of common assessments for measuring strength and power of the lowerbody in high-performing athletes.Methods:A total of 100 participants, including both male (n=83) ...

    • A strength-oriented exercise session required more recovery time than a power-oriented exercise session with equal work 

      Helland, Christian; Midttun, Magnus; Sæland, Fredrik; Haugvad, Lars; Olstad, Daniela Schäfer; Solberg, Paul André; Paulsen, Gøran (Peer reviewed; Journal article, 2020)
      The present randomized cross-over controlled study aimed to compare the rate of recovery from a strength-oriented exercise session vs. a power-oriented session with equal work. Sixteen strength-trained individuals conducted ...

    • The effect of individualised sprint training in elite female team sport athletes: A pilot study 

      Rakovic, Elvir; Paulsen, Gøran; Helland, Christian; Eriksrud, Ola; Haugen, Thomas (Journal article; Peer reviewed, 2018)
      This study aimed to evaluate whether an individualised sprint-training program was more effective in improving sprint performance in elite team-sport players compared to a generalised sprint-training program. Seventeen ...

    • Training Strategies to Improve Muscle Power: Is Olympic-style Weightlifting Relevant? 

      Helland, Christian; Hole, Eirik; Olsson, Monica Charlotte; Seynnes, Olivier R.; Solberg, Paul André; Paulsen, Gøran (Journal article; Peer reviewed, 2016)
      Introduction: This efficacy study investigated the effects of (1) Olympic-style weightlifting (OWL), (2) motorized strength and power training (MSPT), and (3) free weight strength and power training (FSPT) on muscle power. ...

    • Training strategies to improve muscle power: Is Olympic-style weightlifting relevant? 

      Helland, Christian; Hole, Eirik; Iversen, Erik; Olsson, Monica Charlotte; Seynnes, Olivier R.; Solberg, Paul André; Paulsen, Gøran (Journal article; Peer reviewed, 2017)
      Introduction: This efficacy study investigated the effects of 1) Olympic-style weightlifting (OWL), 2) motorized strength and power training (MSPT), and 3) free weight strength and power training (FSPT) on muscle power. ...

    • Validity and Reliability of a Motorized Sprint Resistance Device 

      Rakovic, Elvir; Paulsen, Gøran; Helland, Christian; Haugen, Thomas André; Eriksrud, Ola (Peer reviewed; Journal article, 2022)
      An increasing number of sprint-related studies have used motorized devices to provide resistance while sprinting. The aim of this study was to establish within-session reliability and criterion validity of sprint times ...