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 V̇O<inf>2peak</inf> and maximal strength more than moderate training. European Journal of Sport Science (EJSS)
  Vitenskapelig artikkel

2023

• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

2022

• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• Sandsund, Mariann; Fiskvik, Even Andre; Helgerud, Jan; Hoff, Jan; Løkke, Knut; Lysø, Jens Petter. (2020) Digital training as medicine. Gerontechnology
  Sammendrag/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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Sammendrag/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
  Sammendrag/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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Sammendrag/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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Helgerud, Jan. (2014) -Ikke gunstig ved trening . Dagbladet
  Intervju tidsskrift
• Helgerud, Jan; Wang, Eivind. (2014) Alder ingen hindring. Dagens næringsliv
  Intervju tidsskrift

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
  Leserinnlegg
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• Hoff, Jan; Helgerud, Jan. (2012) Strength Training, Health Benefits of. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Wang, Eivind; Kafonek, Lubomir; Helgerud, Jan; Jungbluth, Klaus; Hoff, Jan. (2012) Ageing And Strength Reduction; Inactivity Or Ageing?. Medicine & Science in Sports & Exercise
  Sammendrag/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
  Sammendrag/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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• Støren, Øyvind; Helgerud, Jan; Hoff, Jan. (2011) Running stride peak forces inversely determine running economy in elite runners. Journal of Strength and Conditioning Research
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Helgerud, Jan; Rodas, G; Kemi, Ole Johan; Hoff, Jan. (2011) Strength and Endurance in Elite Football Players. International Journal of Sports Medicine (IJSM)
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Sammendrag/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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• Fimland, Marius Steiro; Hoff, Jan; Helgerud, Jan; Leivseth, Gunnar. (2009) Chronic and acute neural adaptations to strength training. Doktoravhandlinger ved NTNU (412)
  Doktorgradsavhandling
• 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
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

2008

• 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
  Sammendrag/abstract
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Støren, Øyvind; Helgerud, Jan; Støa, Eva Maria; Hoff, Jan. (2008) Maximal strength training improves running economy in distance runners. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• Karlsen, Trine; Hoff, Jan; Helgerud, Jan. (2008) Training is Medicine; Endurance and Strength Training in Coronary Artery Disease and Health. NTNU
  Doktorgradsavhandling
• 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
  Doktorgradsavhandling
• 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)
  Rapport

2007

• Helgerud, Jan. (2007) Prescribing, quantifying, and monitoring exercise intensity during interval training - Response. Medicine & Science in Sports & Exercise
  Leserinnlegg
• Helgerud, Jan; Høydal, Kjetil L.; Wang, Eivind. (2007) Aerobic High-Intensity Intervals Improve VO2max More Than Moderate Training. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Mastergradsoppgave
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

2006

• Hoff, Jan; Kahler, Nils; Helgerud, Jan. (2006) Training and testing physical capacities for elite football players. Deutsche Zeitschrift für Sportmedizin
  Vitenskapelig oversiktsartikkel/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
  Sammendrag/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
  Sammendrag/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
  Sammendrag/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
  Sammendrag/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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

2004

• Hoff, Jan; Helgerud, Jan. (2004) Endurance and strength training for soccer players - Physiological considerations. Sports Medicine
  Vitenskapelig oversiktsartikkel/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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

2003

• Hoff, Jan; Helgerud, Jan. (2003) Endurance training improves football performance. INSIGHT
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Hoff, Jan; Helgerud, Jan. (2003) Hoff-Helgerud Football Endurance Test. NTNU, Medisin
  Rapport

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. ?
  Vitenskapelig artikkel
• 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. ?
  Vitenskapelig artikkel
• Rognmo, Øivind; Kemi, Ole Johan; Hoff, Jan; Helgerud, Jan. (2002) The puzzle for oxygen transport. A review. Corpus, Psyche et Societas
  Vitenskapelig artikkel
• Hoff, Jan; Wisløff, Ulrik; Engen, L C; Kemi, Ole Johan; Helgerud, Jan. (2002) Soccer specific aerobic endurance training. British Journal of Sports Medicine
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Hoff, Jan; Gran, A; Helgerud, Jan. (2002) Maximal strength training improves aerobic endurance performance. Scandinavian Journal of Medicine & Science in Sports
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (2002) Science and Football IV. Science and football
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Hoff, Jan; Helgerud, Jan. (2002) Maximal strength training enhances running economy and aerobic endurance performance. Football (soccer) New Developments in Physical Training Research
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Hoff, Jan; Helgerud, Jan. (2002) Football (soccer) New Developments in Physical Training Research. [Mangler utgivernavn]
  Fagbok

2001

• Østerås, Håvard; Rygvik, Jørn; Gaupset, Ketil; Eithun, Geir; Helgerud, Jan; Hoff, Jan. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Vitenskapelig artikkel
• Østerås, Håvard; Hoff, Jan; Helgerud, Jan; Eithun, Geir; Gaupset, Ketil; Rygvik, Jørn. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Vitenskapelig artikkel
• Almåsbakk, Bjørn; Whiting, H.T.A.; Helgerud, Jan. (2001) The efficient learner. Biological cybernetics
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Østerås, Håvard; Johnsen, Kristin; Gaupset, Ketil; Eithun, Geir; Helgerud, Jan; Hoff, Jan. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Vitenskapelig artikkel
• Wisløff, Ulrik; Helgerud, Jan; Støylen, Asbjørn; Ellingsen, Øyvind. (2001) Atrioventricular plane displacement in female endurance athletes. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Østerås, Håvard; Hoff, Jan; Helgerud, Jan; Eithun, Geir; Gaupset, Ketil; Johnsen, Kristin. (2001) Maksimal styrketrening for eldre. Fysioterapeuten
  Vitenskapelig artikkel
• Wisløff, Ulrik; Helgerud, Jan; Støylen, Asbjørn; Ellingsen, Øyvind. (2001) Athletes heart, maximal oxygen uptake, left ventricular function, female athletes. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Torvik, P.Ø.; Helgerud, Jan. (2001) The validity of the portable metabolic test system Cortex Metamax. E & FN Spon
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

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
  Vitenskapelig artikkel
• Torvik, P.Ø.; Helgerud, Jan. (2000) The validity of the portable metabolic tast system Cortex Metamax. Schriften zur Sportwissenschaft
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• Engen, Lars-Christian; Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1999) Effekten av økt aerob utholdenhet på adferden hos fotballspillere. Fotballtreneren
  Vitenskapelig artikkel
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) Hvorfor har maksimal styrketrening positiv effekt på utholdenhet?. Idrettsmedisin
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Hoff, Jan; Helgerud, Jan; Wisløff, Ulrik. (1999) Maximal strength training improve work economy in trained female cross-country skiers. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) effect of aerobic performance from muscular strength and power training. Corpus, Psyche et Societas
  Vitenskapelig artikkel
• Østerås, Håvard; Helgerud, Jan; Hoff, Jan. (1999) Styrketrening i langrenn. Skisport 4
  Populærvitenskapelig artikkel
• Engen, L.C.; Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1999) effekten av økt aerob utholdenhet på adferden hos fotballspillere. Fotballtreneren
  Populærvitenskapelig artikkel
• Rognmo, Øyvind; Hoff, Jan; Helgerud, Jan. (1999) Utholdenhet i alpint. Skisport 6
  Populærvitenskapelig artikkel
• 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
  Vitenskapelig artikkel

1998

• Wisløff, Ulrik; Helgerud, Jan. (1998) Evaluation of a new upper body ergometer for cross-country skiers. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Wisløff, Ulrik; Helgerud, Jan. (1998) Evaluation of a new upper body ergometer for cross-country skiers. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• Wisløff, Ulrik; Helgerud, Jan; Hoff, Jan. (1998) Strength and endurance of elite soccer players. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Wisløff, Ulrik; Helgerud, Jan; Hoff, Jan. (1998) Strength and endurance of elite soccer players. Medicine & Science in Sports & Exercise
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig oversiktsartikkel/review

1997

• Helgerud, Jan; Hoff, Jan; Wisløff, Ulrik. (1997) Styrke og utholdenhet hos fotballspillere. Fotballtreneren
  Populærvitenskapelig artikkel

1996

• Helgerud, Jan; Wisløff, Ulrik. (1996) Testing av oksygenopptak i et overkroppsergometer for langrennsløpere. Skisport
  Populærvitenskapelig artikkel
• 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
  Doktorgradsavhandling