• Annual Volume and Distribution of Physical Training in Norwegian Female Cross-Country Skiers and Biathletes: A Comparison Between Sports, Competition Levels, and Age Categories — The Female Endurance Athlete Project 

      Osborne, John Owen; Solli, Guro Strøm; Engseth, Tina Pettersen; Welde, Boye; Morseth, Bente; Noordhof, Dionne Adriana; Sandbakk, Øyvind Bucher; Andersson, Bror Erik Petrus (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-11)
      Purpose To describe and compare the annual physical training characteristics between Norwegian female cross-country (XC) skiers and biathletes across competition levels and age categories. Methods Daily training sessions for one year were recorded for 45 XC skiers and 26 biathletes, comprising international/national-team [inter(national)] and non-national/regional-team members (non-national) ...
    • The effect of exercise hyperpnea on gross efficiency and anaerobic capacity estimates during a 3-min cycle time trial 

      Andersson, Erik P; Osborne, John Owen; Stöggl, Thomas Leonhard; Bach, Philipp (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-22)
      This study aimed to analyze the effect of exercise-induced hyperpnea on gross efficiency (GE) and anaerobic capacity estimates during a self-paced 3-min supramaximal cycle time trial (TT). Fourteen highly-trained male cyclists performed 7×4-min submaximal stages, a 6-min passive rest, a 3-min TT, a 5-min passive rest, and a 6-min submaximal stage. Three models were based on the 7×4-min linear ...
    • Evidence that heat acclimation training may alter sleep and incidental activity 

      Osborne, John Owen; Minett, Geoffrey; Stewart, Ian; Trost, Stewart; Drovandi, Christopher; Costello, Joseph; Pavey, Toby; Borg, David (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-10)
      This randomized cross-over study tested the hypothesis that heat acclimation training would detrimentally affect sleep variables and alter incidental physical activity compared to a thermoneutral training control condition. Eight recreationally trained males (V̇ O2peak 49±4.9 mL. kg<sup>-1</sup>.min<sup>-1</sup>) completed two separate interventions separated by at least 31 days: 5 consecutive day ...
    • Females display lower risk of myocardial infarction from higher estimated cardiorespiratory fitness than males. The Tromsø Study 1994-2014 

      Sagelv, Edvard Hamnvik; Casolo, Andrea; Eggen, Anne Elise; Heitmann, Kim Arne; Johansen, Kristoffer Robin; Løchen, Maja-Lisa; Mathiesen, Ellisiv B.; Morseth, Bente; Njølstad, Inger; Osborne, John Owen; Hagerupsen, Karianne; Pedersen, Sigurd; Wilsgaard, Tom (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-06)
      Objective - To examine the dose-response association between estimated cardiorespiratory fitness (eCRF) and risk of myocardial infarction (MI).<p> <p>Patients and Methods - Adults who attended Tromsø Study surveys 4-6 (Janurary 1,1994-December 20, 2008) with no previous cardiovascular disease were followed up through December 31, 2014 for incident MI. Associations were examined using restricted ...
    • Long-Term Development of Training Characteristics and Performance-Determining Factors in Elite/International and World-Class Endurance Athletes: A Scoping Review 

      Staff, Hanne Cesilie; Solli, Guro Strøm; Osborne, John Owen; Sandbakk, Øyvind Bucher (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-13)
      Objective - In this scoping review, we aimed to 1) identify and evaluate existing research that describes the long-term development of training characteristics and performance-determining factors in male and female endurance athletes reaching an elite/international (Tier 4) or world-class level (Tier 5), 2) summarize the available evidence and 3) point out existing knowledge gaps and provide ...
    • Neuromuscular electrical stimulation during maximal voluntary contraction: a Delphi survey with expert consensus 

      Osborne, John Owen; Tallent, J.; Girard, O.; Marshall, P.W.; Kidgell, D.; Buhmann, R. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-29)
      Purpose The use of electrical stimulation to assess voluntary activation of muscle/s is a popular method employed in numerous exercise science and health research settings. This Delphi study aimed to collate expert opinion and provide recommendations for best practice when using electrical stimulation during maximal voluntary contractions.<p> <p>Methods A two-round Delphi study was undertaken with ...
    • Short-term heat acclimation preserves knee extensor torque but does not improve 20 km self-paced cycling performance in the heat 

      Osborne, John Owen; Stewart, Ian; Borg, David; Beagley, Kenneth; Buhmann, Robert; Minett, Geoffrey (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-19)
      <i>Purpose</i> - This study investigated the effect of 5 days of heat acclimation training on neuromuscular function, intestinal damage, and 20 km cycling (20TT) performance in the heat.<br><br> <i>Methods</i> - Eight recreationally trained males completed two 5-day training blocks (cycling 60 min day<sup>−1</sup> at 50% peak power output) in a counter-balanced, cross-over design, with a 20TT ...