Browsing Brage NIH by Author "Rud, Bjarne"
Now showing items 1-11 of 11
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Contribution of oxygen extraction fraction to maximal oxygen uptake in healthy young men
Skattebo, Øyvind; Calbet, Jose Antonio Lopez; Rud, Bjarne; Capelli, Carlo; Hallén, Jostein (Peer reviewed; Journal article, 2020)We analysed the importance of systemic and peripheral arteriovenous O2 difference (a-vO2 difference and a-vfO2 difference, respectively) and O2 extraction fraction for maximal oxygen uptake (VO2max). Fick law of diffusion ... -
Exercise intensity during cross-country skiing described by oxygen demands in flat and uphill terrain
Karlsson, Øyvind; Gilgien, Matthias; Gløersen, Øyvind Nøstdahl; Rud, Bjarne; Losnegard, Thomas (Peer reviewed; Journal article, 2018)Purpose: In this study wearable global navigation satellite system units were used on athletes to investigate pacing patterns by describing exercise intensities in flat and uphill terrain during a simulated cross-country ... -
The influence of pole lengths on O2-cost, kinematics, and performance in double poling at high speeds before and after a training period with long poles
Losnegard, Thomas Johansen; Tosterud, Ola Kristoffer; Trøen, Erik; Carlsen, Camilla Høivik; Paulsen, Gøran; Rud, Bjarne (Peer reviewed; Journal article, 2019)Purpose: Previous studies have found an acute performance improvement with longer pole lengths in double poling (DP) at low-to-moderate speeds. We investigated the influence of pole lengths (PL) on O2-cost, 3D kinematics, ... -
Is the balance between skeletal muscular metabolic capacity and oxygen supply capacity the same in endurance trained and untrained subjects?
Rud, Bjarne; Hallén, Jostein (Peer reviewed; Journal article, 2008-12-02)We attempted to test whether the balance between muscular metabolic capacity and oxygen supply capacity in endurance-trained athletes (ET) differs from that in a control group of normal physically active subjects by using ... -
Morning Preconditioning Exercise Does Not Increase Afternoon Performance in Competitive Runners
Dahl, Even B.; Øygard, Eivind; Paulsen, Gøran; Rud, Bjarne; Losnegard, Thomas Johansen (Peer reviewed; Journal article, 2021)Purpose: Preconditioning exercise is a widely used strategy believed to enhance performance later the same day. The authors examined the influence of preconditioning exercises 6 hours prior to a time-to-exhaustion (TTE) ... -
Peripheral adaptations to endurance training - Effect of active muscle mass
Mølmen, Knut Sindre; Hallén, Jostein; Rud, Bjarne (Peer reviewed; Journal article, 2019)The purpose of this study was to evaluate whether adaptations to endurance training are affected by active muscle mass during training. Eleven healthy subjects performed 5 weeks of one‐legged knee extension (1‐KE) training ... -
Pole lengths influence O2-cost during double poling in highly trained cross-country skiers
Carlsen, Camilla Høivik; Rud, Bjarne; Myklebust, Håvard; Losnegard, Thomas (Journal article; Peer reviewed, 2017)Purpose: In elite cross-country skiing, double poling is used in different terrain. This study compared O2-cost and kinematics during double poling with four different pole lengths [self-selected (SS), SS − 5 cm, SS + 5 ... -
Pole Length’s Influence on Performance During Classic-Style Snow Skiing in Well-Trained Cross-Country Skiers
Trøen, Erik; Rud, Bjarne; Karlsson, Øyvind; Carlsen, Camilla Høivik; Gilgien, Matthias; Paulsen, Gøran; Tosterud, Ola Kristoffer; Losnegard, Thomas Johansen (Peer reviewed; Journal article, 2020)Purpose: To investigate how self-selected pole length (PL) of ∼84% (PL84%) compared with ∼90% (PL90%) of body height influenced performance during a 700-m time trial with undulating terrain on snow. Methods: Twenty-one ... -
The significance of the skeletal muscular oxidative capacity during whole body exercise
Rud, Bjarne (Doctoral thesis, 2011)The present thesis consists of four studies with the main objective to examine the significance of the skeletal muscular metabolic capacity during whole body exercise. Exercise capacity was studied in chronic obstructive lung ... -
Upper-Body Muscular Endurance Training Improves Performance Following 50 min of Double Poling in Well-Trained Cross-Country Skiers.
Børve, Jørgen; Jevne, Steffen N.; Rud, Bjarne; Losnegard, Thomas (Peer reviewed; Journal article, 2017)This study investigated the effect of muscular endurance training on O2-cost and performance in double poling (DP) on a rollerski treadmill. Twenty-two well-trained cross-country skiers (31 ± 4 years, 77 ± 9 kg, 181 ± 8 ... -
What is the optimal classical style sub-technique during uphill roller skiing in elite male cross-country skiers?
Lund-Hansen, Magne; Gløersen, Øyvind; Rud, Bjarne; Losnegard, Thomas Johansen (Peer reviewed; Journal article, 2023)Purpose: To compare performance, physiological and biomechanical responses between double poling (DP) and diagonal stride (DIA) during treadmill roller skiing in elite male cross-country skiers. Method: Twelve skiers ...