Browsing NTNU Open by Author "Rønnestad, Bent"
Now showing items 1-19 of 19
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Comparison of Short-Sprint and Heavy Strength Training on Cycling Performance
Kristoffersen, Morten; Sandbakk, Øyvind; Rønnestad, Bent; Gundersen, Hilde (Journal article; Peer reviewed, 2019)Purpose: To compare the effects of short-sprint training (SST) and heavy-strength training (HST) following a 4-week strength-training period on sprint and endurance capacities in well-trained cyclists. Methods: Twenty-eight ... -
Determinants and reference values for blood volume and total hemoglobin mass in women and men
Oberholzer, Laura; Montero, David; Robach, Paul; Siebenmann, Christoph; Ryrsøe, Camilla Koch; Bonne, Thomas C.; Breenfeldt Andersen, Andreas; Bejder, Jacob; Karlsen, Trine; Edvardsen, Elisabeth; Rønnestad, Bent; Hamarsland, Håvard; Cepeda-Lopez, Ana C.; Rittweger, Jörn; Treff, Gunnar; Ahlgrim, Christoph; Almquist, Nicki Winfield; Hallén, Jostein; Lundby, Carsten (Peer reviewed; Journal article, 2023)Blood volume (BV) is an important clinical parameter and is usually reported per kg of body mass (BM). When fat mass is elevated, this underestimates BV/BM. One aim was to study if differences in BV/BM related to sex, age, ... -
Effects of high-intensity training on physiological and hormonal adaptions in well-trained cyclists
Sylta, Øystein; Tønnessen, Espen (red.); Sandbakk, Øyvind; Hammarström, Daniel; Danielsen, Jørgen; Skovereng, Knut; Rønnestad, Bent; Seiler, Stephen (Journal article; Peer reviewed, 2017)Purpose: This study aimed to compare the effects of three different high-intensity training (HIT) models, balanced for total load but differing in training plan progression, on endurance adaptations. Methods: Sixty-three ... -
Effects of including sprints during prolonged cycling on hormonal and muscular responses and recovery in elite cyclists
Almquist, Nicki Winfield; Ellefsen, Stian; Sandbakk, Øyvind; Rønnestad, Bent (Peer reviewed; Journal article, 2020)This study investigated the acute effects of including 30‐second sprints during prolonged low‐intensity cycling on muscular and hormonal responses and recovery in elite cyclists. Twelve male cyclists (VO2max, 73.4 ± 4.0 ... -
Effects of including sprints in LIT sessions during a 14-d camp on muscle biology and performance measures in elite cyclists
Almquist, Nicki Winfield; Wilhelmsen, Malene; Ellefsen, Stian; Sandbakk, Øyvind; Rønnestad, Bent (Journal article, 2021)Purpose This study investigated the effects of including sprints within low-intensity training (LIT) sessions during a 14-d training camp focusing on LIT, followed by 10-d recovery (Rec), on performance and performance-related ... -
Effects of Including Sprints in One Weekly Low-Intensity Training Session During the Transition Period of Elite Cyclists
Almquist, Nicki Winfield; Løvlien, Ine; Byrkjedal, Per Thomas; Spencer, Matthew; Kristoffersen, Morten; Skovereng, Knut; Sandbakk, Øyvind; Rønnestad, Bent (Peer reviewed; Journal article, 2020)The purpose of this study was to investigate the effects of including 30-s sprints in one weekly low-intensity training (LIT) session during a 3-week transition period in elite cyclists. Sixteen male elite cyclists (maximal ... -
Effects of initial performance, gross efficiency and VO_2peak characteristics on subsequent adaptations to endurance training in competitive cyclists
Skovereng, Knut; Sylta, Øystein; Tønnessen, Espen; Hammarström, Daniel; Danielsen, Jørgen; Seiler, Stephen; Rønnestad, Bent; Sandbakk, Øyvind (Journal article; Peer reviewed, 2018)The present study investigated the effects of initial levels of cycling performance, peak oxygen uptake (www.frontiersin.orgO2peak) and gross efficiency (GE) on the subsequent adaptations of these variables and their ... -
Factors Influencing Running Velocity at Lactate Threshold in Male and Female Runners at Different Levels of Performance
Støa, Eva Maria; Helgerud, Jan; Rønnestad, Bent; Hansen, Joar; Ellefsen, Stian; Støren, Øyvind (Peer reviewed; Journal article, 2020)Background: The primary aim was to examine the relationship between lactate threshold (LT) expressed as percentage of maximal oxygen uptake (VO2max) and running velocity at LT (LTV). A secondary aim was to investigate to ... -
Force-velocity profiling in athletes: Reliability and agreement across methods
Lindberg, Kolbjørn Andreas; Solberg, Paul Andre; Bjørnsen, Thomas; Helland, Christian; Rønnestad, Bent; Haugen, Thomas André; Østerås, Sindre; Kristoffersen, Morten; Paulsen, Gøran (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 ... -
The inclusion of sprints in low-intensity sessions during the transition period of elite cyclists improves endurance performance 6 weeks into the subsequent preparatory period
Taylor, Madison; Almquist, Nicki Winfield; Rønnestad, Bent; Tjønna, Arnt Erik; Kristoffersen, Morten; Spencer, Matthew; Sandbakk, Øyvind; Skovereng, Knut (Journal article; Peer reviewed, 2021)Purpose: To investigate the effects of including repeated sprints in a weekly low-intensity (LIT) session during a 3-week transition period on cycling performance 6 weeks into the subsequent preparatory period (PREP) in ... -
No Differences Between 12 Weeks of Block- vs. Traditional-Periodized Training in Performance Adaptations in Trained Cyclists
Almquist, Nicki Winfield; Eriksen, Hanne Berg; Wilhelmsen, Malene; Hamarsland, Håvard; Ing, Steven; Ellefsen, Stian; Sandbakk, Øyvind; Rønnestad, Bent; Skovereng, Knut (Peer reviewed; Journal article, 2022)The purpose of this study was to compare the effects of 12 weeks load-matched block periodization (BP, n = 14), using weekly concentration of high- (HIT), moderate- (MIT), and low- (LIT) intensity training, with traditional ... -
Optimising endurance training of elite cyclists by inclusion of sprints during low-intensity sessions
Almquist, Nicki Winfield (Doctoral theses at NTNU;2020:402, Doctoral thesis, 2020) -
Power production and biochemical markers of metabolic stress and muscle damage following a single bout of short-sprint and heavy strength exercise in well-trained cyclists
Kristoffersen, Morten; Sandbakk, Øyvind; Tønnessen, Espen; Svendsen, Ida S.; Paulsen, Gøran; Ersvær, Elisabeth; Nygård, Irene; Rostad, Kari; Ryningen, Anita; Iversen, Vegard Vereide; Skovereng, Knut; Rønnestad, Bent; Gundersen, Hilde (Journal article; Peer reviewed, 2018)Purpose: Although strength and sprint training are widely used methods in competitive cycling, no previous studies have compared the acute responses and recovery rates following such sessions among highly trained cyclists. ... -
Short-time cycling performance in young elite cyclists: related to maximal aerobic power and not to maximal accumulated oxygen deficit
Støa, Eva Maria; Rønnestad, Bent; Helgerud, Jan; Johansen, Jan-Michael; Andersen, Ingvild Tronstad; Rogneflåten, Torkil; Sørensen, Anders; Støren, Øyvind (Peer reviewed; Journal article, 2024)Purpose: To explore the relationships between performance variables and physiological variables in a short-time (2–3 min) cycling time trial (TT) on a cycle ergometer. Methods: Fifteen young elite cyclists (age: 17.3 ± 0.7 ... -
Strength and Power Testing of Athletes: A Multicenter Study of Test-Retest Reliability
Lindberg, Kolbjørn Andreas; Solberg, Paul Andre; 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) ... -
Strength training improves double-poling performance after prolonged submaximal exercise in cross-country skiers
Øfsteng, Sjur Johansen; Sandbakk, Øyvind; Van Beekvelt, Mireille; Hammarström, Daniel; Kristoffersen, Raymond; Hansen, Joar; Paulsen, Gøran; Rønnestad, Bent (Journal article; Peer reviewed, 2017)The purpose of this study was to investigate the effects of adding strength training with or without vibration to cross-country (XC) skiers' endurance training on double-poling (DP) performance, physiological, and kinematic ... -
Superiority of High-Load vs. Low-Load Resistance Training in Military Cadets
Øfsteng, Sjur Johansen; Hammarström, Daniel; Knox, Silje; Jøsok, Øyvind; Helkala, Kirsi Marjaana; Koll, Lise; Hanestadhaugen, Marita; Raastad, Truls; Rønnestad, Bent; Ellefsen, Stian (Peer reviewed; Journal article, 2024)Øfsteng, SF, Hammarström, D, Knox, S, Jøsok, Ø, Helkala, K, Koll, L, Hanestadhaugen, M, Raastad, T, Rønnestad, BR, and Ellefsen, S. Superiority of high-load vs. low-load resistance training in military cadets. J Strength ... -
The Effect of 30-Second Sprints During Prolonged Exercise on Gross Efficiency, Electromyography, and Pedaling Technique in Elite Cyclists
Almquist, Nicki Winfield; Ettema, Gertjan; Hopker, James; Sandbakk, Øyvind; Rønnestad, Bent (Journal article; Peer reviewed, 2019)Background: Cycling competitions are often of long duration and include repeated high-intensity efforts. Purpose: To investigate the effect of repeated maximal sprints during 4 hours of low-intensity cycling on gross ... -
The Effect of Different High-Intensity Periodization Models on Endurance Adaptations
Sylta, Øystein; Tønnessen, Espen; Hammarström, Daniel; Danielsen, Jørgen; Skovereng, Knut; Ravn, Troels; Rønnestad, Bent; Sandbakk, Øyvind; Seiler, Stephen (Journal article; Peer reviewed, 2016)Purpose: This study aimed to compare the effects of three different high-intensity training (HIT) models, balanced for total load but differing in training plan progression, on endurance adaptations. Methods: Sixty-three ...