2025

• Støa, Eva Maria; Rønnestad, Bent; Helgerud, Jan; Johansen, Jan-Michael; Andersen, Ingvild Tronstad; Rogneflåten, Torkil. (2025) Short-time cycling performance in young elite cyclists: related to maximal aerobic power and not to maximal accumulated oxygen deficit. Frontiers in Physiology
  Academic article
• Berg, Ole Kristian; Aagård, Norun; Helgerud, Jan; Brobakken, Mathias Forsberg; Hoff, Jan; Wang, Eivind. (2025) No impairment of maximal oxygen uptake, pulmonary function and walking economy in patients diagnosed with long COVID: consideration of disease severity. European Journal of Applied Physiology
  Letter to the editor
• Berg, Ole Kristian Brones; Aagård, Norun; Helgerud, Jan; Brobakken, Mathias Forsberg; Hoff, Jan; Wang, Eivind. (2025) No impairment of maximal oxygen uptake, pulmonary function and walking economy in patients diagnosed with long COVID: consideration of disease severity . European Journal of Applied Physiology
  Letter to the editor
• Gjerløw, Lars Erik; Sunde, Arnstein; Støa, Eva Maria; Helgerud, Jan; Johansen, Jan-Michael; Hjortland, Henrik. (2025) Determining physiologic variables for changes in 800-m running and 800-m ski ergometer performance. European Journal of Applied Physiology
  Academic article

2024

• Hov, Håkon; Eithun, Geir; Wang, Eivind; Helgerud, Jan. (2024) Aerobic high-intensity interval training and maximal strength training in patients with unspecific musculoskeletal disorders improve V̇O2peak and maximal strength more than moderate training. European Journal of Sport Science (EJSS)
  Academic article
• Støa, Eva Maria; Rønnestad, Bent; Helgerud, Jan; Johansen, Jan-Michael; Andersen, Ingvild Tronstad; Rogneflåten, Torkil. (2024) Short-time cycling performance in young elite cyclists: related to maximal aerobic power and not to maximal accumulated oxygen deficit. Frontiers in Physiology
  Academic article
• Trane, Glenn; Pedersen, Stine; Mehus, Håkon Andre; Helgerud, Jan; Unhjem, Runar Jakobsen. (2024) Velocity Specific Adaptations to Three Widely Used Strength Training Methods: A Randomized Controlled Trial. Medicine & Science in Sports & Exercise
  Academic article
• Berg, Ole Kristian; Aagård, Norun; Helgerud, Jan; Brobakken, Mathias Forsberg; Hoff, Jan; Wang, Eivind. (2024) Maximal oxygen uptake, pulmonary function and walking economy are not impaired in patients diagnosed with long COVID. European Journal of Applied Physiology
  Academic article

2023

• Brobakken, Mathias Forsberg; Krogsæter, Iben; Helgerud, Jan; Wang, Eivind; Hoff, Jan. (2023) Abdominal aerobic endurance exercise reveals spot reduction exists : a randomized controlled trial. Physiological Reports
  Academic article
• Helgerud, Jan; Hov, Håkon; Mehus, Håkon Andre; Balto, Bård; Boye, Anders Johan Nesheim; Finsås, Lars. (2023) Aerobic high-intensity intervals improve V̇O<inf>2max</inf> more than supramaximal sprint intervals in females, similar to males. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Støren, Øyvind; Sunde, Arnstein; Helgerud, Jan; Johansen, Jan-Michael; Gjerløw, Lars Erik; Hjortland, Henrik. (2023) Maximal aerobic and anaerobic power and time performance in 800 m double poling ergometer. European Journal of Applied Physiology
  Academic article
• Laginestra, Fabio Giuseppe; Berg, Ole Kristian; Nyberg, Stian Kwak; Venturelli, Massimo; Wang, Eivind; Helgerud, Jan. (2023) Stroke volume response during prolonged exercise depends on left ventricular filling : evidence from a beta-blockade study. American Journal of Physiology. Regulatory Integrative and Comparative Physiology
  Academic article

2022

• Helgerud, Jan; Haglo, Håvard Pedersen; Hoff, Jan. (2022) Prediction of VO2max from submaximal exercise using the smartphone application myworkout GO : validation study of a digital health method. JMIR Cardio
  Academic article
• Hov, Håkon; Wang, Eivind; Lim, Yi Rui; Trane, Glenn; Hemmingsen, Magnus; Hoff, Jan. (2022) Aerobic high-intensity intervals are superior to improve VO2max compared with sprint intervals in well-trained men. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Berge, Jarle; Hjelmesæth, Jøran Sture; Kolotkin, Ronette Loganzo; Støren, Øyvind; Bratland-Sanda, Solfrid; Hertel, Jens Kristoffer. (2022) Effect of aerobic exercise intensity on health-related quality of life in severe obesity: a randomized controlled trial. Health and Quality of Life Outcomes
  Academic article
• Johansen, Jan-Michael; Sunde, Arnstein; Helgerud, Jan; Støren, Øyvind. (2022) Relationships Between Maximal Aerobic Speed, Lactate Threshold, and Double Poling Velocity at Lactate Threshold in Cross-Country Skiers. Frontiers in Physiology
  Academic article
• Haglo, Håvard Pedersen; Berg, Ole Kristian; Hoff, Jan; Helgerud, Jan; Wang, Eivind. (2022) Maximal strength training in patients with inflammatory rheumatic disease: implications for physical function and quality of life. European Journal of Applied Physiology
  Academic article
• Renberg, Julie; Lignier, Maxime Jeanovitch; Wiggen, Øystein; Færevik, Hilde; Helgerud, Jan; Sandsund, Mariann. (2022) Heat tolerance during uncompensable heat stress in men and women wearing firefighter personal protective equipment. Applied Ergonomics
  Academic article

2021

• Johansen, Jan-Michael; Sunde, Arnstein; Helgerud, Jan; Gjerløw, Lars Erik; Støren, Øyvind. (2021) Effects of individual changes in training distribution on maximal aerobic capacity in well-trained cross-country skiers: A follow-up study. Frontiers in Physiology
  Academic article
• Støren, Øyvind; Helgerud, Jan; Johansen, Jan-Michael; Gjerløw, Lars Erik; Aamlid, Aanund; Støa, Eva Maria. (2021) Aerobic and anaerobic speed predicts 800-m running performance in young recreational runners. Frontiers in Physiology
  Academic article
• Haglo, Håvard Pedersen; Wang, Eivind; Berg, Ole Kristian; Hoff, Jan; Helgerud, Jan. (2021) Smartphone-assisted high-intensity interval training in inflammatory rheumatic disease patients : randomized controlled trial. JMIR mhealth and uhealth
  Academic article
• Kittilsen, Hans Torvild; Goleva-Fjellet, Sannija; Freberg, Baard Ingegerdsson; Nicolaisen, Iver; Støa, Eva Maria; Bratland-Sanda, Solfrid. (2021) Responses to maximal strength training in different age and gender groups. Frontiers in Physiology
  Academic article
• Berge, Jarle; Hjelmesæth, Jøran; Hertel, Jens Kristoffer; Gjevestad, Espen Svendsen; Småstuen, Milada Cvancarova; Johnson, Line Kristin. (2021) Effect of Aerobic Exercise Intensity on Energy Expenditure and Weight Loss in Severe Obesity-A Randomized Controlled Trial . Obesity
  Academic article

2020

• Johansen, Jan-Michael; Goleva-Fjellet, Sannija; Sunde, Arnstein; Gjerløw, Lars Erik; Skeimo, Lars Arne Fostvedt; Freberg, Baard Ingegerdsson. (2020) No change – no gain; The effect of age, sex, selected genes and training on physiological and performance adaptations in cross-country skiing. Frontiers in Physiology
  Academic article
• Bratland-Sanda, Solfrid; Pedersen, Frank. G.; Haave, Marius Ness; Helgerud, Jan; Støren, Øyvind. (2020) Large inter-individual differences in responses to a block of high intensity aerobic interval training: A case series in national-level cyclists and triathletes. International Journal of Exercise Science
  Academic article
• Støa, Eva Maria; Helgerud, Jan; Rønnestad, Bent; Hansen, Joar; Ellefsen, Stian; Støren, Øyvind. (2020) Factors Influencing Running Velocity at Lactate Threshold in Male and Female Runners at Different Levels of Performance. Frontiers in Physiology
  Academic article
• Johansen, Jan-Michael; Eriksen, Sondre ; Sunde, Arnstein; Slettemeås, Øystein B.; Helgerud, Jan; Støren, Øyvind. (2020) Improving utilization of maximal oxygen uptake and work economy in recreational cross-country skiers with high-intensity double-poling intervals. International Journal of Sports Physiology and Performance (IJSPP)
  Academic article
• Sandsund, Mariann; Fiskvik, Even Andre; Helgerud, Jan; Hoff, Jan; Løkke, Knut; Lysø, Jens Petter. (2020) Digital training as medicine. Gerontechnology
  Abstract
• Helgerud, Jan; Thomsen, Simon Nørskov; Hoff, Jan; Strandbråten, Arild; Leivseth, Gunnar; Unhjem, Runar Jakobsen. (2020) Maximal strength training in patients with Parkinson's disease : impact on efferent neural drive, force generating capacity, and functional performance. Journal of applied physiology
  Academic article

2019

• Sunde, Arnstein; Johansen, Jan-Michael; Gjøra, Martin; Paulsen, Gøran; Bråten, Morten; Helgerud, Jan. (2019) Stronger Is Better: The Impact of Upper Body Strength in Double Poling Performance. Frontiers in Physiology
  Academic article
• Helgerud, Jan; Øiestad, Britt Elin; Wang, Eivind; Hoff, Jan. (2019) Prediction of upper extremity peak oxygen consumption from heart rate during submaximal arm cycling in young and middle-aged adults. European Journal of Applied Physiology
  Academic article

2018

• Nyberg, Stian Kwak; Berg, Ole Kristian; Helgerud, Jan; Wang, Eivind. (2018) Reliability of forearm oxygen uptake during handgrip exercise : assessment by ultrasonography and venous blood gas. Physiological Reports
  Academic article
• Tørhaug, Tom; Brurok, Berit; Hoff, Jan; Helgerud, Jan; Leivseth, Gunnar. (2018) Arm Cycling Combined with Passive Leg Cycling Enhances VO2peak in Persons with Spinal Cord Injury Above the Sixth Thoracic Vertebra. Topics in Spinal Cord Injury Rehabilitation
  Academic article

2017

• Støa, Eva Maria; Meling, Sondre V.; Nyhus, Lill-Katrin; Strømstad, Glenn; Mangerud, Karl Magnus; Helgerud, Jan. (2017) High-intensity aerobic interval training improves aerobic fitness and HbA1c among persons diagnosed with type 2 diabetes. European Journal of Applied Physiology
  Academic article
• Wang, Eivind; Nyberg, Stian K.; Hoff, Jan; Zhao, Jia; Leivseth, Gunnar; Tørhaug, Tom. (2017) Impact of maximal strength training on work efficiency and muscle fiber type in the elderly: Implications for physical function and fall prevention. Experimental Gerontology
  Academic article
• Wang, Eivind; Nyberg, Stian K.; Berg, Ole Kristian; Helgerud, Jan. (2017) Blood flow regulation and oxygen uptake during high intensity forearm exercise. Medicine & Science in Sports & Exercise
  Abstract
• Nyberg, Stian K.; Berg, Ole Kristian; Helgerud, Jan; Wang, Eivind. (2017) Validity of forearm oxygen uptake during handgrip exercise : assessment by ultrasonography and venous blood gas. Medicine & Science in Sports & Exercise
  Abstract
• Nyberg, Stian K.; Berg, Ole Kristian; Helgerud, Jan; Wang, Eivind. (2017) Blood flow regulation and oxygen uptake during high-intensity forearm exercise. Journal of applied physiology
  Academic article
• Støren, Øyvind; Helgerud, Jan; Sæbø, Mona; Støa, Eva Maria; Bratland-Sanda, Solfrid; Unhjem, Runar Jakobsen. (2017) The effect of age on the VO2max response to high-intensity interval training. Medicine & Science in Sports & Exercise
  Academic article
• Rossman, Matthew J; Jonathan H., Groot; Garten, Ryan S.; Wang, Eivind; Helgerud, Jan; Hoff, Jan. (2017) Physical Fitness Protects Against Age-Related Vascular Dysfunction in the Lower Limb. Medicine & Science in Sports & Exercise
  Abstract

2016

• Groot, H. Jonathan; Rossman, Matthew J.; Garten, Ryan S.; Wang, Eivind; Hoff, Jan; Helgerud, Jan. (2016) The effect of physical activity on passive leg movement-induced vasodilation with age. Medicine & Science in Sports & Exercise
  Academic article
• Tørhaug, Tom; Brurok, Berit; Hoff, Jan; Helgerud, Jan; Leivseth, Gunnar. (2016) The effect from maximal bench press strength training on work economy during wheelchair propulsion in men with spinal cord injury. Spinal Cord
  Academic article
• Hoff, Jan; Støren, Øyvind; Finstad, Arnstein; Wang, Eivind; Helgerud, Jan. (2016) Increased blood lactate level deteriorates running economy in World class endurance athletes. Journal of Strength and Conditioning Research
  Academic article
• Tørhaug, Tom; Brurok, Berit; Hoff, Jan; Helgerud, Jan; Leivseth, Gunnar. (2016) Arm crank and wheelchair ergometry produce similar peak oxygen uptake but different work economy values in individuals with spinal cord injury. BioMed Research International
  Academic article
• Støa, Eva Maria; Nyhus, Lill-Katrin; Børresen, Sandra Claveau; Nygaard, Caroline; Hovet, Åse Marie; Bratland-Sanda, Solfrid. (2016) Day to day variability in fat oxidation and the effect after only 1 day of change in diet composition. Applied Physiology, Nutrition and Metabolism
  Academic article

2014

• Wang, Eivind; Chomon, Carlos Enrique Cruz; Pettersen, Mads Rino; Hoff, Jan; Helgerud, Jan. (2014) Comparison of thoracic bioimpedance with acetylene uptake for measuring cardiac output. International Journal of Sports Medicine (IJSM)
  Academic article
• Wang, Eivind; Næss, Morten Svendsen; Hoff, Jan; Albert, Tobias Lie; Pham, Quyen Thi; Richardson, Russell. (2014) Exercise-training-induced changes in metabolic capacity with age: the role of central cardiovascular plasticity. Age
  Academic article
• Støren, Øyvind; Rønnestad, Bent; Sunde, Arnstein; Hansen, Joar; Ellefsen, Stian; Helgerud, Jan. (2014) A time-saving method to assess power output at lactate threshold in well-trained and elite cyclists. Journal of Strength and Conditioning Research
  Academic article
• Helgerud, Jan. (2014) -Ikke gunstig ved trening . Dagbladet
  Interview Journal
• Helgerud, Jan; Wang, Eivind. (2014) Alder ingen hindring. Dagens næringsliv
  Interview Journal

2013

• Barrett-O'Keefe, Z; Helgerud, Jan; Wagner, Peter D.; Richardson, Russell S.. (2013) Thermally governed local blood flow regulation by the capillary pumps and CO2 is the basis of the improved work efficiency of the trained muscle bed Reply. Journal of applied physiology
  Reader opinion piece
• Brurok, Berit; Tørhaug, Tom; Karlsen, Trine; Leivseth, Gunnar; Helgerud, Jan; Hoff, Jan. (2013) Effect of lower extremity functional electrical stimulation pulsed isometric contractions on arm cycling peak oxygen uptake in spinal cord injured individuals. Journal of Rehabilitation Medicine
  Academic article
• Castro, Vicente; Grisdale-Helland, Barbara; Jørgensen, Sven Martin; Helgerud, Jan; Claireaux, Guy; Farrell, Anthony P.. (2013) Disease resistance is related to inherent swimming performance in Atlantic salmon. BMC Physiology
  Academic article
• Støren, Øyvind; Ulevåg, Kåre; Larsen, Morten Herum; Støa, Eva Maria; Helgerud, Jan. (2013) Physiological Determinants of the Cycling Time Trial. Journal of Strength and Conditioning Research
  Academic article
• Palmer, Helen; Håberg, Asta; Fimland, Marius Steiro; Solstad, Gerd Marie; Iversen, Vegard Moe; Hoff, Jan. (2013) Structural brain changes after 4 wk of unilateral strength training of the lower limb. Journal of applied physiology
  Academic article
• Heggelund, Jørn; Fimland, Marius Steiro; Helgerud, Jan; Hoff, Jan. (2013) Maximal strength training improves work economy, rate of force development and maximal strength more than conventional strength training. European Journal of Applied Physiology
  Academic article

2012

• Brurok, Berit; Tørhaug, Tom; Leivseth, Gunnar; Karlsen, Trine; Helgerud, Jan; Hoff, Jan. (2012) Effect of leg vascular occlusion on arm cycling peak oxygen uptake in spinal cord-injured individuals. Spinal Cord
  Academic article
• Hill, Tessa; Gjellesvik, Tor Ivar; Moen, Per Marius Reinem; Tørhaug, Tom; Fimland, Marius Steiro; Helgerud, Jan. (2012) Maximal Strength Training Enchances Strength and Functional Performance in Chronic Stroke Survivors. American Journal of Physical Medicine & Rehabilitation
  Academic article
• Barrett-O’Keefe, Zachary; Helgerud, Jan; Wagner, Peter D.; Richardson, Russell S.. (2012) Maximal strength training and increased work efficiency: contribution from the trained muscle bed. Journal of applied physiology
  Academic article
• Wang, Eivind; Solli, Guro Strøm; Nyberg, Stian Kwak; Hoff, Jan; Helgerud, Jan. (2012) Stroke Volume Does not Plateau in Female Endurance Athletes. International Journal of Sports Medicine (IJSM)
  Academic article
• Hoff, Jan; Helgerud, Jan. (2012) Strength Training, Health Benefits of. Springer
  Academic chapter/article/Conference paper
• Støren, Øyvind; Bratland-Sanda, Solfrid; Haave, Marius ; Helgerud, Jan. (2012) Improved Vo2max and time trial performance with more high aerobic intensity interval training and reduced training volume: a case study on an elite national cyclist. Journal of Strength and Conditioning Research
  Academic article
• Gjellesvik, Tor Ivar; Brurok, Berit; Hoff, Jan; Tørhaug, Tom; Helgerud, Jan. (2012) Effect of High Aerobic Intensity Interval Treadmill Walking in People With Chronic Stroke: A Pilot Study With One Year Follow-Up. Topics in Stroke Rehabilitation
  Academic article
• Wang, Eivind; Kafonek, Lubomir; Helgerud, Jan; Jungbluth, Klaus; Hoff, Jan. (2012) Ageing And Strength Reduction; Inactivity Or Ageing?. Medicine & Science in Sports & Exercise
  Abstract
• Gjellesvik, Tor Ivar; Hill, Tessa; Moen, Per Marius Reinem; Torhaug, Tom; Fimland, Marius Steiro; Helgerud, Jan. (2012) Maximal Strength Training Enhances Functional Performance in Chronic Stroke Patients. Medicine & Science in Sports & Exercise
  Abstract
• Heggelund, Jørn; Morken, Gunnar; Helgerud, Jan; Nilsberg, Geir Erling; Hoff, Jan. (2012) Therapeutic effects of maximal strength training on walking efficiency in patients with schizophrenia - a pilot study. BMC Research Notes
  Academic article

2011

• Kemi, Ole Johan; Rognmo, Øivind; Amundsen, Brage H.; Slørdahl, Stig Arild; Richardson, Russell; Helgerud, Jan. (2011) One-arm maximal strength training improves work economy and endurance capacity but not skeletal muscle blood flow. Journal of Sports Sciences
  Academic article
• Støren, Øyvind; Helgerud, Jan; Hoff, Jan. (2011) Running stride peak forces inversely determine running economy in elite runners. Journal of Strength and Conditioning Research
  Academic article
• Helgerud, Jan; Karlsen, Trine; Kim, WY; Høydal, Kjetil L; Støylen, Asbjørn; Pedersen, H. (2011) Interval and Strength Training in CAD Patients. International Journal of Sports Medicine (IJSM)
  Academic article
• Solstad, Gerd Marie; Fimland, Marius Steiro; Helgerud, Jan; Iversen, Vegard Moe; Hoff, Jan. (2011) Test-Retest Reliability of V-Wave Responses in the Soleus and Gastrocnemius Medialis. Journal of clinical neurophysiology
  Academic article
• Fimland, Marius Steiro; Moen, Per Marius Reinem; Hill, Tessa; Gjellesvik, Tor Ivar; Tørhaug, Tom; Helgerud, Jan. (2011) Neuromuscular performance of paretic versus non-paretic plantar flexors after stroke. European Journal of Applied Physiology
  Academic article
• Mosti, Mats Peder; Wang, Eivind; Wiggen, Øystein; Helgerud, Jan; Hoff, Jan. (2011) Concurrent strength and endurance training improves physical capacity in patients with peripheral arterial disease. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Heggelund, Jørn; Hoff, Jan; Helgerud, Jan; Nilsberg, Geir Erling; Morken, Gunnar. (2011) Reduced peak oxygen uptake and implications for cardiovascular health and quality of life in patients with schizophrenia. BMC Psychiatry
  Academic article
• Brurok, Berit; Helgerud, Jan; Karlsen, Trine; Leivseth, Gunnar; Hoff, Jan. (2011) Effect of aerobic high-intensity hybrid training on stroke volume and peak oxygen consumption in men with spinal cord injury. American Journal of Physical Medicine & Rehabilitation
  Academic article
• Castro, Vicente; Grisdale-Helland, Barbara; Helland, Ståle; Kristensen, Torstein; Jørgensen, Sven Martin; Helgerud, Jan. (2011) Aerobic training stimulates growth and promotes disease resistance in Atlantic salmon (Salmo salar). Comparative Biochemistry and Physiology A
  Academic article
• Heggelund, Jørn; Nilsberg, Geir Erling; Hoff, Jan; Morken, Gunnar; Helgerud, Jan. (2011) Effects of high aerobic intensity training in patients with schizophrenia-A controlled trial. Nordic Journal of Psychiatry
  Academic article
• Helgerud, Jan; Rodas, G; Kemi, Ole Johan; Hoff, Jan. (2011) Strength and Endurance in Elite Football Players. International Journal of Sports Medicine (IJSM)
  Academic article

2010

• Fimland, Marius Steiro; Helgerud, Jan; Knutsen, Andreas; Ruth, Helge; Leivseth, Gunnar; Hoff, Jan. (2010) No effect of prior caffeine ingestion on neuromuscular recovery after maximal fatiguing contractions. European Journal of Applied Physiology
  Academic article
• Husby, Vigdis Schnell; Bjørgen, Siri; Hoff, Jan; Helgerud, Jan; Benum, Pål; Husby, Otto Schnell. (2010) Unilateral vs. bilateral total hip arthroplasty - the influence of medial femoral head offset and effects on strength and aerobic endurance capacity. HIP International
  Academic article
• Husby, Vigdis Schnell; Helgerud, Jan; Bjørgen, Siri; Husby, Otto Schnell; Benum, Pål; Hoff, Jan. (2010) Early Postoperative Maximal Strength Training Improves Work Efficiency 6-12 Months after Osteoarthritis-Induced Total Hip Arthroplasty in Patients Younger Than 60 Years. American Journal of Physical Medicine & Rehabilitation
  Academic article
• Helgerud, Jan; Støren, Øyvind; Hoff, Jan. (2010) Are there differences in running economy at different velocities for well-trained distance runners?. European Journal of Applied Physiology
  Academic article
• Fimland, Marius Steiro; Helgerud, Jan; Gruber, Markus; Leivseth, Gunnar; Hoff, Jan. (2010) Enhanced neural drive after maximal strength training in multiple sclerosis patients. European Journal of Applied Physiology
  Academic article
• Helgerud, Jan; Bjørgen, Siri; Karlsen, Trine; Husby, Vigdis Schnell; Steinshamn, Sigurd Loe; Richardson, Russell. (2010) Hyperoxic interval training in chronic obstructive pulmonary disease patients with oxygen desaturation at peak exercise. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Sunde, Arnstein; Støren, Øyvind; Bjerkaas, Marius; Larsen, Morten Herum; Hoff, Jan; Helgerud, Jan. (2010) MAXIMAL STRENGTH TRAINING IMPROVES CYCLING ECONOMY IN COMPETITIVE CYCLISTS. Journal of Strength and Conditioning Research
  Academic article
• Wang, Eivind; Helgerud, Jan; Loe, H; Indseth, K; Kaehler, N; Hoff, Jan. (2010) Maximal strength training improves walking performance in peripheral arterial disease patients. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Barrett-O'Keefe, Zachary; Helgerud, Jan; Wagner, Peter D.; Richardson, Russell S.. (2010) Maximal Strength Training: The Effects on Intramuscular Economy and its Determinants. Medicine & Science in Sports & Exercise
  Abstract

2009

• Kjendlie, Per-Ludvik; Hoff, Jan; Helgerud, Jan; Aspenes, Stian. (2009) Combined strength and endurance training in competitive swimmers. Journal of Sports Science and Medicine (JSSM)
  Academic article
• Fimland, Marius Steiro; Helgerud, Jan; Solstad, Gerd Marie; Iversen, Vegard Moe; Leivseth, Gunnar; Hoff, Jan. (2009) Neural adaptations underlying cross-education after unilateral strength training. European Journal of Applied Physiology
  Academic article
• Husby, Vigdis Schnell; Helgerud, Jan; Bjørgen, Siri; Husby, Otto Schnell; Benum, Pål; Hoff, Jan. (2009) Early Maximal Strength Training Is an Efficient Treatment for Patients Operated With Total Hip Arthroplasty. Archives of Physical Medicine and Rehabilitation
  Academic article
• Helgerud, Jan; Wang, Eivind; Mosti, Mats Peder; Wiggen, Øystein; Hoff, Jan. (2009) Plantar flexion training primes peripheral arterial disease patients for improvements in cardiac function. European Journal of Applied Physiology
  Academic article
• Fimland, Marius Steiro; Helgerud, Jan; Gruber, Markus; Leivseth, Gunnar; Hoff, Jan. (2009) Functional maximal strength training induces neural transfer to single-joint tasks. European Journal of Applied Physiology
  Academic article
• Aspenes, Stian Thoresen; Kjendlie, Per-Ludvik; Hoff, Jan; Helgerud, Jan. (2009) Combined strength and endurance training in competitive swimmers. Journal of Sports Science and Medicine (JSSM)
  Academic article
• Karlsen, Trine; Helgerud, Jan; Støylen, Asbjørn; Lauritsen, N; Hoff, Jan. (2009) Maximal Strength Training Restores Walking Mechanical Effeciency in Heart Patients. International Journal of Sports Medicine (IJSM)
  Academic article
• Fimland, Marius Steiro; Hoff, Jan; Helgerud, Jan; Leivseth, Gunnar. (2009) Chronic and acute neural adaptations to strength training. Doktoravhandlinger ved NTNU (412)
  Doctoral dissertation
• Husby, Vigdis Schnell; Helgerud, Jan; Bjørgen, Siri; Husby, Otto Schnell; Benum, Pål; Hoff, Jan. (2009) Early Maximal Strength Training Is an Efficient Treatment for Patients Operated With Total Hip Arthroplasty. Archives of Physical Medicine and Rehabilitation
  Academic article
• Bjørgen, Siri; Helgerud, Jan; Husby, Vigdis Schnell; Steinshamn, Sigurd Loe; Richardson, Russell; Hoff, Jan. (2009) Aerobic high intensity one-legged interval cycling improves peak oxygen uptake in Chronic Obstructive Pulmonary Disease patients; No additional effect from hyperoxia. International Journal of Sports Medicine (IJSM)
  Academic article
• Bjørgen, Siri; Hoff, Jan; Husby, Vigdis Schnell; Høydal, Morten; Tjønna, Arnt Erik; Steinshamn, Sigurd Loe. (2009) Aerobic high intensity one and two legs interval cycling in chronic obstructive pulmonary disease: the sum of the parts is greater than the whole. European Journal of Applied Physiology
  Academic article

2008

• Karlsen, Trine; Hoff, Jan; Støylen, Asbjørn; Skovholt, Mie Cappelen; Aarhus, Kari Gulbrandsen; Helgerud, Jan. (2008) Aerobic interval training improves VO2 peak in coronary artery disease patients; no additional effect from hyperoxia. Scandinavian Cardiovascular Journal
  Academic article
• Wang, Eivind; Hoff, Jan; Loe, Henrik; Kaehler, Nils; Helgerud, Jan. (2008) Plantar flexion: an effective training for peripheral arterial disease. European Journal of Applied Physiology
  Academic article
• Adamson, M; MacQuaide, N; Helgerud, Jan; Hoff, Jan; Kemi, Ole Johan. (2008) Unilateral arm strength training improves contralateral peak force and rate of force development. European Journal of Applied Physiology
  Academic article
• Støren, Øyvind; Helgerud, Jan; Støa, Eva Maria; Hoff, Jan. (2008) Maximal strength training improves running economy in distance runners. Medicine & Science in Sports & Exercise
  Academic article
• Karlsen, Trine; Hoff, Jan; Helgerud, Jan. (2008) Training is Medicine; Endurance and Strength Training in Coronary Artery Disease and Health. NTNU
  Doctoral dissertation
• Høydal, Kjetil Laurits; Hoff, Jan; Helgerud, Jan. (2008) Effect of high intensity aerobic training in health and coronary artery disease. The importance of intensity, duration and frequency of training. NTNU, Det medisinske fakultet
  Doctoral dissertation
• Heggelund, Jørn; Nilsberg, Geir Erling; Morken, Gunnar; Hoff, Jan; Helgerud, Jan. (2008) Treatment effects from aerobic endurance training in patients suffering from Schizophrenia. 38th EABCT Annual Congress - Abstracts
  Abstract
• Takle, Harald Rune; Kristensen, Torstein; Helland, Ståle Johannes; Grisdale-Helland, Barbara; Poppe, Trygve T; Tørud, Brit. (2008) Aerob utholdenhetstrening for bedret hjertefunksjon og helse hos oppdrettslaks. Prosjektperiode 1.6.2007 – 10.10.2008 . Nofima rapportserie (20/2008)
  Report

2007

• Helgerud, Jan. (2007) Prescribing, quantifying, and monitoring exercise intensity during interval training - Response. Medicine & Science in Sports & Exercise
  Reader opinion piece
• Helgerud, Jan; Høydal, Kjetil L.; Wang, Eivind. (2007) Aerobic High-Intensity Intervals Improve VO2max More Than Moderate Training. Medicine & Science in Sports & Exercise
  Academic article
• Hoff, Jan; Tjønna, Arnt Erik; Steinshamn, Sigurd Loe; Høydal, Morten; Richardson, Russell; Helgerud, Jan. (2007) Maximal strenght training of the legs in COPD: a therapy for mechanical ineffieciency. Medicine & Science in Sports & Exercise
  Academic article
• Høydal, Kjetil Laurits; Helgerud, Jan; Karlsen, Trine; Støylen, Asbjørn; Steinshamn, Sigurd Loe; Hoff, Jan. (2007) Patients with coronary artery- or chronic obstructive pulmonary disease walk with mechanical inefficiency. Scandinavian Cardiovascular Journal
  Academic article
• Brurok, Berit; Helgerud, Jan; Karlsen, Trine; Hoff, Jan; Hoff, Jan. (2007) VO2peak and Stroke Volume of the heart are enhanced by aerobic high intensity interval hybrid training in Spinal Cord Injured individuals. NTNU, ISB
  Masters thesis
• Wisløff, Ulrik; Støylen, Asbjørn; Loennechen, Jan Pål; Bruvold, Morten; Rognmo, Øivind; Haram, Per Magnus. (2007) Superior cardiovascular effect of aerobic interval training versus moderate continuous training in heart failure patients - A randomized study. Circulation
  Academic article
• Helgerud, Jan; Høydal, Kjetil Laurits; Wang, Eivind; Karlsen, Trine; Berg, P; Bjerkaas, M. (2007) Aerobic high-intensity intervals improve VO2max more than moderate training. Medicine & Science in Sports & Exercise
  Academic article

2006

• Hoff, Jan; Kahler, Nils; Helgerud, Jan. (2006) Training and testing physical capacities for elite football players. Deutsche Zeitschrift für Sportmedizin
  Academic literature review
• Karlsen, Trine; Hoff, Jan; Støylen, Asbjørn; Helgerud, Jan. (2006) Aerobic Interval Training Breathing 100% O2 Improves VO2peak Equally as Ambient Air Training in Coronary Patients. Medicine & Science in Sports & Exercise
  Abstract
• Bjørgen, Siri; Helgerud, Jan; Husby, Vigdis S; Steinshamn, Sigurd Loe; Hoff, Jan. (2006) Hyperoxia during High Intensity Aerobic Training and Testing in Patients with Chronic Obstructive Pulmonary Disease. Medicine & Science in Sports & Exercise
  Abstract
• Helgerud, Jan; Høydal, Kjetil Laurits; Wang, Eivind; Karlsen, Trine; Berg, Pål; Bjerkaas, Marius. (2006) Differential Response to Aerobic Endurance Training at Different Intensities. Medicine & Science in Sports & Exercise
  Abstract
• Hoff, Jan; Helgerud, Jan. (2006) Football (Soccer) Specific Simple Low Cost, Test of Endurance Performance and Maximal Oxygen Uptake. Medicine & Science in Sports & Exercise
  Abstract

2005

• Slørdahl, Stig Arild; Wang, Eivind; Hoff, Jan; Kemi, Ole Johan; Amundsen, Brage H.; Helgerud, Jan. (2005) Effective training for patients with intermittent claudication. Scandinavian Cardiovascular Journal
  Academic article
• Østerås, Håvard; Hoff, Jan; Helgerud, Jan. (2005) Effects of high-intensity endurance training on maximal oxygen consumption in healthy elderly people. Journal of Applied Gerontology
  Academic article
• McMillan, Kenny; Helgerud, Jan; Macdonald, R; Hoff, Jan. (2005) Physiological adaptations to soccer specific endurance training in professional youth soccer players. British Journal of Sports Medicine
  Academic article
• Hoff, Jan; Kemi, Ole Johan; Helgerud, Jan. (2005) Strength and endurance differences between elite and junior elite ice hockey players. The importance of allometric scaling. International Journal of Sports Medicine (IJSM)
  Academic article
• McMillan, Kenny; Helgerud, Jan; Grant, SJ; Newell, J; Wilson, J; Macdonald, R. (2005) Lactate threshold responses to a season of professional British youth soccer. British Journal of Sports Medicine
  Academic article

2004

• Hoff, Jan; Helgerud, Jan. (2004) Endurance and strength training for soccer players - Physiological considerations. Sports Medicine
  Academic literature review
• Hoff, Jan; Kemi, Ole Johan; Helgerud, Jan. (2004) Strength and Endurance Differences Between Elite and Junior Elite Ice Hockey Players. The Importance of Allometric Scaling. International Journal of Sports Medicine (IJSM)
  Academic article
• Rognmo, Ø; Hetland, E; Helgerud, Jan; Hoff, Jan; Slørdahl, Stig Arild. (2004) High intensity aerobic interval exercise is superior to moderate intensity exercise for increasing aerobic capacity in patients with coronary artery disease. Journal of Cardiovascular Risk
  Academic article
• Slørdahl, Stig Arild; Madslien, VO; Støylen, Asbjørn; Kjos, A; Helgerud, Jan; Wisløff, Ulrik. (2004) Atrioventricular plane displacement in untrained and trained females. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Castagna, C; Helgerud, Jan; Jones, R; Hoff, Jan. (2004) Strong correlation of maximal squat strength with sprint performance and vertical jump height in elite soccer players. British Journal of Sports Medicine
  Academic article

2003

• Hoff, Jan; Helgerud, Jan. (2003) Endurance training improves football performance. INSIGHT
  Academic article
• Kemi, Ole Johan; Hoff, Jan; Engen, Lars Chr; Helgerud, Jan; Wisløff, Ulrik. (2003) Soccer specific testing of maximal oxygen uptake. Journal of Sports Medicine and Physical Fitness
  Academic article
• Hoff, Jan; Helgerud, Jan. (2003) Hoff-Helgerud Football Endurance Test. NTNU, Medisin
  Report

2002

• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (2002) Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans. ?
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (2002) Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans. ?
  Academic article
• Rognmo, Øivind; Kemi, Ole Johan; Hoff, Jan; Helgerud, Jan. (2002) The puzzle for oxygen transport. A review. Corpus, Psyche et Societas
  Academic article
• Hoff, Jan; Wisløff, Ulrik; Engen, L C; Kemi, Ole Johan; Helgerud, Jan. (2002) Soccer specific aerobic endurance training. British Journal of Sports Medicine
  Academic article
• Hoff, Jan; Helgerud, Jan; Wisløff, Ulrik. (2002) Endurance Training Into the Next Millenium; Muscular Strength Training Effects on Aerobic Endurance Performance: A Review. American Journal of Sports Medicine
  Academic article
• Amundsen, Brage; Wisløff, Ulrik; Helgerud, Jan; Hoff, Jan; Slørdahl, Stig Arild. (2002) Ultrasound recorded axillary artery blood flow during elbow-flexion exercise. Medicine & Science in Sports & Exercise
  Academic article
• Hoff, Jan; Gran, A; Helgerud, Jan. (2002) Maximal strength training improves aerobic endurance performance. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Kemi, Ole Johan; Hoff, Jan; Engen, Lars Christian; Helgerud, Jan; Wisløff, Ulrik. (2002) Soccer specific testing of maximal oxygen uptake. Football (soccer) New Developments in Physical Training Research
  Academic article
• Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (2002) Science and Football IV. Science and football
  Academic article
• Helgerud, Jan; Kemi, Ole Johan; Hoff, Jan. (2002) Pre-season concurrent strength and endurance development in elite soccer players. Football (soccer) New Developments in Physical Training Research
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (2002) Maximal strength-training effects on force-velocity and force-power relationships explain increases in aerobic performance in humans. European Journal of Applied Physiology
  Academic article
• Hoff, Jan; Helgerud, Jan. (2002) Maximal strength training enhances running economy and aerobic endurance performance. Football (soccer) New Developments in Physical Training Research
  Academic article
• Wisløff, Ulrik; Castagna, Carlo; Helgerud, Jan; Hoff, Jan. (2002) Maximal squat strength is strongly correlated to sprint performance in elite soccer players. Football (soccer) New Developments in Physical Training Research
  Academic article
• Hoff, Jan; Helgerud, Jan. (2002) Football (soccer) New Developments in Physical Training Research. [Mangler utgivernavn]
  Non-fiction book

2001

• Østerås, Håvard; Rygvik, Jørn; Gaupset, Ketil; Eithun, Geir; Helgerud, Jan; Hoff, Jan. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Academic article
• Østerås, Håvard; Hoff, Jan; Helgerud, Jan; Eithun, Geir; Gaupset, Ketil; Rygvik, Jørn. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Academic article
• Almåsbakk, Bjørn; Whiting, H.T.A.; Helgerud, Jan. (2001) The efficient learner. Biological cybernetics
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Kemi, Ole Johan; Ellingsen, Øyvind. (2001) Oxygen pulse; maximal oxygen uptake; rat; respiratory exchange ratio. American Journal of Physiology. Heart and Circulatory Physiology
  Academic article
• Hoff, Jan; Halvas-Svendsen, Lars; Helgerud, Jan. (2001) Lactate production and elimination in ice hockey players during an elite series match. Corpus, Psyche et Societas
  Academic article
• Østerås, Håvard; Johnsen, Kristin; Gaupset, Ketil; Eithun, Geir; Helgerud, Jan; Hoff, Jan. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Støylen, Asbjørn; Ellingsen, Øyvind. (2001) Atrioventricular plane displacement in female endurance athletes. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Kemi, Ole Johan; Ellingsen, Øyvind. (2001) Intensity-controlled treadmill running in rats: VO2max and cardiac hypertrophy. American Journal of Physiology. Heart and Circulatory Physiology
  Academic article
• Østerås, Håvard; Hoff, Jan; Helgerud, Jan; Eithun, Geir; Gaupset, Ketil; Johnsen, Kristin. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Støylen, Asbjørn; Ellingsen, Øyvind. (2001) Athletes heart, maximal oxygen uptake, left ventricular function, female athletes. Medicine & Science in Sports & Exercise
  Academic article
• Helgerud, Jan; Vik, John Tore; Hoff, Jan. (2001) The effect of maximal strength training on endurance performance in upper body for highly trained male cross-country skiers. Corpus, Psyche et Societas
  Academic article
• Espnes, Geir Arild; Oldervoll, L.; Sæterhaug, Arne; Helgerud, Jan. (2001) Effect of physical training at a physical outpatient Clinic and at home on patients with coronary heart disease. Corpus, Psyche et Societas
  Academic article
• Torvik, P.Ø.; Helgerud, Jan. (2001) The validity of the portable metabolic test system Cortex Metamax. E & FN Spon
  Academic chapter/article/Conference paper

2000

• Sandsund, M; Sue-Chu, M; Reinertsen, RE; Helgerud, Jan; Holand, B; Bjermer, L. (2000) Treatment with inhaled beta 2 agonists or oral leukotriene antagonist do not enhance physical performance in nonasthmatic highly trained athletes exposed to -15o C. Journal of Thermal Biology
  Academic article
• Torvik, P.Ø.; Helgerud, Jan. (2000) The validity of the portable metabolic tast system Cortex Metamax. Schriften zur Sportwissenschaft
  Academic article

1999

• Hoff, Jan; Helgerud, Jan; Wisløff, Ulrik. (1999) Maximal strength training improves work economy in trained female cross-country skiers. Medicine & Science in Sports & Exercise
  Academic article
• Engen, Lars-Christian; Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1999) Effekten av økt aerob utholdenhet på adferden hos fotballspillere. Fotballtreneren
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) Hvorfor har maksimal styrketrening positiv effekt på utholdenhet?. Idrettsmedisin
  Academic article
• Sue-chu, M; Sandsund, M; Helgerud, Jan; Reinertsen, R.E.; Bjermer, L. (1999) Salmeterol and physical performance at -15 C in highly-trained nonastmatic cross-country skiers. Scandinavian Journal of Medicine & Science in Sports
  Academic article
• Hoff, Jan; Helgerud, Jan; Wisløff, Ulrik. (1999) Maximal strength training improve work economy in trained female cross-country skiers. Medicine & Science in Sports & Exercise
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) The effect of endurance performance by training for upper body muscular strength and power. Corpus, Psyche et Societas
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) effect of aerobic performance from muscular strength and power training. Corpus, Psyche et Societas
  Academic article
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) Styrketrening i langrenn. Skisport 4
  Popular scientific article
• Engen, L.C.; Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1999) effekten av økt aerob utholdenhet på adferden hos fotballspillere. Fotballtreneren
  Popular scientific article
• Rognmo, Øyvind; Hoff, Jan; Helgerud, Jan. (1999) Utholdenhet i alpint. Skisport 6
  Popular scientific article
• Sandsund, Mariann; Sue-Chu, Malcolm; Reinertsen, Randi Eidsmo; Helgerud, Jan; Holand, Bård; Bjermer, Leif Hilding. (1999) Treatment with inhaled ss-agonists or oral leukotriene antagonist do not enhance physical performance in nonasthmatic highly trained athletes exposed to -15 C. Journal of Thermal Biology
  Academic article

1998

• Wisløff, Ulrik; Helgerud, Jan. (1998) Evaluation of a new upper body ergometer for cross-country skiers. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan. (1998) Metodes for evaluating peak oxygen uptake and anaerobic threshold in upper body of cross-country skiers,. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan. (1998) Evaluation of a new upper body ergometer for cross-country skiers. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Hoff, Jan. (1998) Strength and endurance of elite soccer players. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan. (1998) Methods for evaluating peak oxygen uptake and anaerobic threshold in upper body of cross-country skiers. Medicine & Science in Sports & Exercise
  Academic article
• Wisløff, Ulrik; Helgerud, Jan; Hoff, Jan. (1998) Strength and endurance of elite soccer players. Medicine & Science in Sports & Exercise
  Academic article
• Sandsund, M; Sue-Chu, M; Helgerud, Jan; Reinertsen, R; Bjermer, L. (1998) Effect of cold exposure (-15 degree C) and Salbutamol treatment on physiological performance in elite cross-country skiers. European Journal of Applied Physiology
  Academic article
• Nielsen, Hilde Dorthea Grindvik; Helgerud, Jan. (1998) Peripheral and central effects on oxygen transport in endurance training with special reference to upper body work, cross- country skiing and the female athlete. Corpus, Psyche et Societas
  Academic literature review

1997

• Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1997) Styrke og utholdenhet hos fotballspillere. Fotballtreneren
  Popular scientific article

1996

• Helgerud, Jan; Wisløff, Ulrik. (1996) Testing av oksygenopptak i et overkroppsergometer for langrennsløpere. Skisport
  Popular scientific article
• Helgerud, Jan. (1996) Central and peripheral limitations of aerobic endurance in distance runners : a study of physiological gender differences and similarities. NTNU. dept. of Sports Sciences
  Doctoral dissertation