Nikolai Baastrup Nordsborg

Nikolai Baastrup Nordsborg

Head of Department


  1. Published

    Serum Insulin-like Factor 3, Testosterone and LH in Experimental and Therapeutic Testicular Suppression

    Albrethsen, J., Østergren, Peter Busch, Norup, P. B., Sønksen, Jens Otto Reimers, Fode, Mikkel Mejlgaard, Kistorp, Caroline Michaela Nervil, Nordsborg, Nikolai Baastrup, Solheim, S. A., Mørkeberg, J., Main, Katharina Maria & Juul, Anders, 2023, In: Journal of Clinical Endocrinology and Metabolism. 108, 11, p. 2834-2839

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Hepcidin and erythroferrone complement the Athlete Biological Passport in the detection of autologous blood transfusion

    Andersen, A. B., Bejder, Jacob, Bonne, T. C., Sørensen, H., Sørensen, Helle, Jung, G., Ganz, T., Nemeth, E., Secher, Niels H., Johansson, P. I. & Nordsborg, Nikolai Baastrup, 2022, In: Medicine and Science in Sports and Exercise. 54, 9, p. 1604-1616 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Legalisering af doping er uforsvarligt og praktisk umuligt

    Andersen, A. B., Rasmussen, J. J., Bejder, Jacob, Juul, A., Hostrup, Morten, Solheim, S. A., Bonne, T. C. & Nordsborg, Nikolai Baastrup, 29 Jul 2018, In: Berlingske. p. 24-25 2 p.

    Research output: Contribution to journalContribution to newspaper - Feature articleCommunication

  4. Published

    Repeated Wingate sprints is a feasible high-quality training strategy in moderate hypoxia

    Andersen, A. B., Bejder, Jacob, Bonne, T. C., Olsen, N. V. & Nordsborg, Nikolai Baastrup, 2020, In: P L o S One. 15, 11, 13 p., e0242439.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Hemodynamic stress echocardiography in patients supported with a continuous-flow left ventricular assist device

    Andersen, M., Gustafsson, Finn, Lav Madsen, P., Brassard, P., Jensen, A. S., Secher, Niels H., Hassager, Christian, Nordsborg, Nikolai Baastrup & Møller, J. E., 2010, In: JACC - Cardiovascular Imaging. 3, 8, p. 854-859 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Does intermittent exposure to high altitude increase the risk of cardiovascular disease in workers? A systematic narrative review

    Aragón-Vela, J., Bejder, Jacob, Huertas, J. R., Plaza-Diaz, J. & Nordsborg, Nikolai Baastrup, 2020, In: B M J Open. 10, 11, 14 p., 041532.

    Research output: Contribution to journalReviewResearchpeer-review

  7. Published

    Does hypoxia and stress erythropoiesis compromise cardiac function in healthy adults? A randomized trial

    Arrebola-Moreno, A. L., Casuso, R. A., Bejder, Jacob, Bonne, T. C., Breenfeldt Andersen, A., Aragón-Vela, J., Nordsborg, Nikolai Baastrup & Huertas, J. R., 2022, In: Sports Medicine - Open. 8, 7 p., 137.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Cerebral water and ion balance remains stable when humans are exposed to acute hypoxic exercise

    Avnstorp, M. B., Rasmussen, P., Brassard, P., Seifert, T., Overgaard, M., Krustrup, P., Secher, Niels H. & Nordsborg, Nikolai Baastrup, 2015, In: High Altitude Medicine and Biology (Online). 16, 1, p. 18-25 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Hypoxia compounds exercise-induced free radical formation in humans; partitioning contributions from the cerebral and femoral circulation

    Bailey, D. M., Rasmussen, P., Evans, K. A., Bohm, A. M., Zaar, M., Nielsen, H. B., Brassard, P., Nordsborg, Nikolai Baastrup, Homann, P. H., Raven, P. B., McEneny, J., Young, I. S., McCord, J. M. & Secher, Niels H., 2018, In: Free Radical Biology & Medicine. 124, p. 104-113 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Reliable and sensitive physical testing of elite trapeze sailors

    Bay, J., Bojsen-Møller, J. & Nordsborg, Nikolai Baastrup, 2018, In: Scandinavian Journal of Medicine & Science in Sports. 28, 3, p. 919-927 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    No effect of β-alanine on muscle function and kayak performance

    Bech, S. R., Nielsen, T. S., Hald, M., Jakobsen, J. P. & Nordsborg, Nikolai Baastrup, 2018, In: Medicine and Science in Sports and Exercise. 50, 3, p. 562-569 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Tramadol does not improve performance or impair motor function in trained cyclists

    Bejder, Jacob, Andersen, A. B., Bonne, T. C., Piil, Jacob Feder, Hagen, L. C. H., Dehnes, Y., Eibye, K. H., Nybo, Lars & Nordsborg, Nikolai Baastrup, 2020, In: Medicine and Science in Sports and Exercise. 52, 5, p. 1169-1175 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Hematological adaptations and detection of recombinant human erythropoietin combined with chronic hypoxia

    Bejder, Jacob, Andersen, A. B., Bonne, T. C., Linkis, J., Olsen, N. V., Huertas, J. R. & Nordsborg, Nikolai Baastrup, 2021, In: Drug Testing and Analysis. 13, 2, p. 360-368 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Hypoxic dose, intensity distribution, and fatigue monitoring are paramount for "live high-train low"

    Bejder, Jacob & Nordsborg, Nikolai Baastrup, 2017, In: European Journal of Applied Physiology. 117, 10, p. 2121-2122 2 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  15. Published

    Detection of erythropoietin misuse by the Athlete Biological Passport combined with reticulocyte percentage

    Bejder, Jacob, Aachmann-Andersen, N. J., Bonne, T. C., Olsen, N. V. & Nordsborg, Nikolai Baastrup, Oct 2016, In: Drug Testing and Analysis. 8, 10, p. 1049-1055 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Plasma volume reduction and hematological fluctuations in high-level athletes after an increased training load

    Bejder, Jacob, Andersen, A. B., Goetze, J. P., Aachmann-Andersen, N. J. & Nordsborg, Nikolai Baastrup, 2017, In: Scandinavian Journal of Medicine & Science in Sports. 27, 12, p. 1605-1615 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Time trial performance is sensitive to low-volume autologous blood transfusion

    Bejder, Jacob, Andersen, A. B., Solheim, S. A., Gybel-Brask, M., Secher, Niels H., Johansson, P. I. & Nordsborg, Nikolai Baastrup, 2019, In: Medicine and Science in Sports and Exercise. 51, 4, p. 692-700 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Erythropoietin on cycling performance

    Bejder, Jacob, Nybo, Lars, Sawka, M. N., Joyner, M. J. & Nordsborg, Nikolai Baastrup, 2017, In: The Lancet Haematology. 4, 10, p. e459-e460 2 p.

    Research output: Contribution to journalComment/debateResearch

  19. Published

    An untargeted urine metabolomics approach for autologous blood transfusion detection

    Bejder, Jacob, Gürdeniz, G., Cuparencu, Catalina, Hall, F., Gybel-Brask, M., Andersen, A. B., Dragsted, Lars Ove, Secher, Niels H., Johansson, P. I. & Nordsborg, Nikolai Baastrup, 2021, In: Medicine and Science in Sports and Exercise. 53, 1, p. 236-243 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Specificity of "Live High-Train Low" altitude training on exercise performance

    Bejder, Jacob & Nordsborg, Nikolai Baastrup, 2018, In: Exercise and Sport Sciences Reviews. 46, 2, p. 129-136 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Response

    Bejder, Jacob & Nordsborg, Nikolai Baastrup, 2018, In: Exercise and Sport Sciences Reviews. 46, 4, p. 272 1 p.

    Research output: Contribution to journalComment/debateResearch

  22. Published

    Endurance, aerobic high-intensity, and repeated sprint cycling performance is unaffected by normobaric "Live High-Train Low": a double-blind placebo-controlled cross-over study

    Bejder, Jacob, Andersen, A. B., Buchardt, R., Larsson, T. H., Olsen, N. V. & Nordsborg, Nikolai Baastrup, 2017, In: European Journal of Applied Physiology. 117, 5, p. 979-988 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Physiological determinants of elite mountain bike cross-country Olympic performance

    Bejder, Jacob, Bonne, T. C., Nyberg, M. P., Sjøberg, K. A. & Nordsborg, Nikolai Baastrup, 2019, In: Journal of Sports Sciences. 37, 10, p. 1154-1161 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Response

    Bejder, Jacob, Andersen, A. B., Solheim, S. A. & Nordsborg, Nikolai Baastrup, 2019, In: Medicine and Science in Sports and Exercise. 51, 7, p. 1569 1 p.

    Research output: Contribution to journalComment/debateResearch

  25. Published

    A single glucocorticoid injection accelerate erythropoiesis but does not improve performance

    Bejder, Jacob, Bonne, T. C., Breenfeldt Andersen, A., Sørensen, H. & Nordsborg, Nikolai Baastrup, 2022, In: F A S E B Journal. 36, Suppl. 1, 1 p., L7503.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  26. Published

    Acute hyperhydration reduces athlete biological passport OFF-hr score

    Bejder, Jacob, Hoffmann, M. F., Ashenden, M., Nordsborg, Nikolai Baastrup, Karstoft, K. & Mørkeberg, J. S., 2016, In: Scandinavian Journal of Medicine & Science in Sports. 26, 3, p. 338-347 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    "Live High-Train High" increases hemoglobin mass in Olympic swimmers

    Bonne, T. C., Lundby, C., Jørgensen, S., Johansen, L., Mrgan, M., Bech, S. R., Sander, M., Papoti, M. & Nordsborg, Nikolai Baastrup, 2014, In: European Journal of Applied Physiology. 114, 7, p. 1439-1449 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Altitude training causes haematological fluctuations with relevance for the Athlete Biological Passport

    Bonne, T. C., Lundby, C., Lundby, A. K., Sander, M., Bejder, Jacob & Nordsborg, Nikolai Baastrup, 2015, In: Drug Testing and Analysis. 7, 8, p. 655-662 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Moderate hypoxic exposure for 4 weeks reduces body fat percentage and increases fat-free mass in trained individuals: a randomized crossover study

    Bonne, T. C., Jeppesen, Jan Sommer, Bejder, Jacob, Breenfeldt Andersen, A., Olsen, N. V., Huertas, J. R. & Nordsborg, Nikolai Baastrup, 2023, In: Sleep and Breathing. 27, 4, p. 1611-1618 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Phlebotomy eliminates the maximal cardiac output response to six weeks of exercise training

    Bonne, T. C., Doucende, G., Flück, D., Jacobs, R. A., Nordsborg, Nikolai Baastrup, Robach, P., Walther, G. & Lundby, C., 2014, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 306, 10, p. R752-R760 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Central and peripheral blood flow during exercise with a continuous-flow left ventricular assist device: constant versus increasing pump speed: a pilot study

    Brassard, P., Jensen, A. S., Nordsborg, Nikolai Baastrup, Gustafsson, Finn, Møller, J. E., Hassager, Christian, Boesgaard, S., Hansen, P. B., Olsen, P. S., Sander, K., Secher, Niels H. & Madsen, Per, 2011, In: Circulation. Heart Failure. 4, 5, p. 554-560 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Microdoses of recombinant human erythropoietin enhance time trial performance in trained males and females

    Breenfeldt Andersen, A., Graae, Jonathan, Bejder, Jacob, Bonne, T. C., Seier, S., Debertin, M., Eibye, K., Hostrup, Morten & Nordsborg, Nikolai Baastrup, 2023, In: Medicine and Science in Sports and Exercise. 55, 2, p. 311-321 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Duplicate measures of hemoglobin mass within an hour: feasibility, reliability, and comparison of three devices in supine position

    Breenfeldt Andersen, A., Bonne, T. C., Nordsborg, Nikolai Baastrup, Holm-Sørensen, H. & Bejder, Jacob, 2024, In: Scandinavian Journal of Clinical and Laboratory Investigation. 84, 1, p. 1-10

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Contemporary blood doping: Performance, mechanism, and detection

    Breenfeldt Andersen, A., Nordsborg, Nikolai Baastrup, Bonne, T. C. & Bejder, Jacob, 2024, In: Scandinavian Journal of Medicine & Science in Sports. 34, 1, 15 p., e14243.

    Research output: Contribution to journalReviewResearchpeer-review

  35. Published

    Changes in immature reticulocytes aid the indirect detection of microdose recombinant erythropoietin use in males and females

    Breenfeldt Andersen, A., Bejder, Jacob, Bonne, T. C., Graae, Jonathan, Seier, S. & Nordsborg, Nikolai Baastrup, 2023, In: Medicine and Science in Sports and Exercise. 55, 9, p. 1695-1705 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Effects of altitude and recombinant human erythropoietin on iron metabolism: a randomized controlled trial

    Breenfeldt Andersen, A., Bonne, T. C., Bejder, Jacob, Jung, G., Ganz, T., Nemeth, E., Olsen, N. V., Rodriguez Huertas, J. & Nordsborg, Nikolai Baastrup, 2021, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 321, 2, p. R152-R161 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Hiking strap force decreases during sustained upwind sailing

    Buchardt, R., Bay, J., Bojsen-Møller, J. & Nordsborg, Nikolai Baastrup, 2017, In: European Journal of Sport Science. 17, 4, p. 393-399 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    The response of the lactate minimum test to a 12-week swimming training

    Campos, E. Z., Nordsborg, Nikolai Baastrup, Da Silva, A. S. R., Zagatto, A. M., Neto, J. G., De Andrade, V. L. & Papoti, M., 2014, In: Motriz. Revista de Educacao Fisica. 20, 3, p. 286-291 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    Oral quercetin supplementation hampers skeletal muscle adaptations in response to exercise training

    Casuso, R. A., Martínez-López, E. J., Nordsborg, Nikolai Baastrup, Hita-Contreras, F., Martínez-Romero, R., Cañuelo, A. & Martínez-Amat, A., 2014, In: Scandinavian Journal of Medicine & Science in Sports. 24, 6, p. 920-927 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Glucocorticoids improve high-intensity exercise performance in humans

    Casuso, R. A., Melskens, L., Bruhn, T., Secher, Niels H. & Nordsborg, Nikolai Baastrup, 2014, In: Journal of Applied Physiology. 114, 2, p. 419-424 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    High-intensity high-volume swimming induces more robust signaling through PGC-1α and AMPK activation than sprint interval swimming in m. triceps brachii

    Casuso, R. A., Plaza-Díaz, J., Ruiz-Ojeda, F. J., Aragón-Vela, J., Robles-Sanchez, C., Nordsborg, Nikolai Baastrup, Hebberecht, M., Salmeron, L. M. & Huertas, J. R., 2017, In: P L o S One. 12, 10, 16 p., e0185494.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Directly measured aerobic fitness in male Maasai of Tanzania

    Christensen, Dirk Lund, Jørgensen, S. W., Koch, L. S., Nordsborg, Nikolai Baastrup, Sironga, J., Ramaiya, K. L., Larsen, Steen, Brage, S., Bygbjerg, Ib Christian, Maro, V. P. & Helge, Jørn Wulff, 2022, In: American Journal of Human Biology. 34, 4, 12 p., e23674.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Caffeine and bicarbonate for speed. A meta-analysis of legal supplements potential for improving intense endurance exercise performance

    Christensen, P. M., Shirai, Y., Ritz, C. & Nordsborg, Nikolai Baastrup, 2017, In: Frontiers in Physiology. 8, 16 p., 240.

    Research output: Contribution to journalReviewResearchpeer-review

  44. Published

    Thigh oxygen uptake at the onset of intense exercise is not affected by a reduction in oxygen delivery caused by hypoxia

    Christensen, P. M., Nordsborg, Nikolai Baastrup, Nybo, Lars, Mortensen, S. P., Sander, M., Secher, Niels H. & Bangsbo, Jens, 2012, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 303, 8, p. R843-R849 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Low-volume high-intensity swim training is superior to high-volume low-intensity training in relation to insulin sensitivity and glucose control in inactive middle-aged women

    Connolly, L. J., Nordsborg, Nikolai Baastrup, Nyberg, M. P., Weihe, P., Krustrup, P. & Mohr, M., 2016, In: European Journal of Applied Physiology. 116, 10, p. 1889-1897 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    High intensity and reduced volume training attenuates stress and recovery levels in elite swimmers

    Elbe, A., Rasmussen, C. P., Nielsen, Glen & Nordsborg, Nikolai Baastrup, 2016, In: European Journal of Sport Science. 16, 3, p. 344-349 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published

    Front crawl swimming analysis using accelerometers: A preliminary comparison between pool and flume

    Espinosa, H. G., Nordsborg, Nikolai Baastrup & Thiel, D. V., 2015, In: Procedia Engineering. 112, p. 497-501 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Skeletal muscle and performance adaptations to high-intensity training in elite male soccer players: speed endurance runs versus small-sided game training

    Fransson, D., Nielsen, T. S., Olsson, K., Christensson, T., Bradley, P. S., Fatouros, I. G., Krustrup, P., Nordsborg, Nikolai Baastrup & Mohr, M., 2018, In: European Journal of Applied Physiology. 118, 1, p. 111-121 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    The central blood volume as measured by thoracic electrical impedance and plasma proANP is not compromised by donation of 900 mL of blood in men

    Gybel-Brask, M., Nordsborg, Nikolai Baastrup, Goetze, Jens P. , Johansson, P. I., Secher, Niels H. & Bejder, Jacob, 2020, In: Transfusion Medicine. 30, 6, p. 450-455 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    EpoR stimulates rapid cycling and larger red cells during mouse and human erythropoiesis

    Hidalgo, D., Bejder, Jacob, Pop, R., Gellatly, K., Hwang, Y., Scalf, S. M., Eastman, A. E., Chen, J., Zhu, L. J., Heuberger, J. A. A. C., Guo, S., Koury, M. J., Nordsborg, Nikolai Baastrup & Socolovsky, M., 2021, In: Nature Communications. 12, 17 p., 7334.

    Research output: Contribution to journalJournal articleResearchpeer-review

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