Nikolai Baastrup Nordsborg

Nikolai Baastrup Nordsborg

Head of Department

ORCID: 0000-0001-7077-9265

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  1. Published

    Protein kinase C {alpha} activity is important for contraction-induced FXYD1 phosphorylation in skeletal muscle

    Thomassen, Martin, Rose, A. J., Jensen, Thomas Elbenhardt, Maarbjerg, S. J., Bune, L. T., Leitges, M., Richter, Erik A., Bangsbo, Jens & Nordsborg, Nikolai Baastrup, 2011, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 301, 6, p. R1808-R1814 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Analysis of dried blood spots is a feasible alternative for detecting ephedrine in doping control

    Solheim, S. A., Thomas, A., Ringsted, T. K., Thevis, M., Breenfeldt Andersen, A., Holm-Sørensen, H., Nordsborg, Nikolai Baastrup & Mørkeberg, J., 2022, In: Drug Testing and Analysis. 14, 10, p. 1685-1695 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Changes in blood parameters after intramuscular testosterone ester injections - Implications for anti-doping

    Solheim, S. A., Mørkeberg, J., Dehnes, Y., Hullstein, I., Juul, Anders, Upners, E. N. & Nordsborg, Nikolai Baastrup, 2020, In: Drug Testing and Analysis. 12, 8, p. 1019-1030 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Use of nutritional supplements by Danish elite athletes and fitness customers

    Solheim, S. A., Nordsborg, Nikolai Baastrup, Ritz, C., Berget, J., Kristensen, A. H. & Mørkeberg, J., 2017, In: Scandinavian Journal of Medicine & Science in Sports. 27, 8, p. 801-808 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    An intramuscular injection of mixed testosterone esters does not acutely enhance strength and power in recreationally active young men

    Solheim, S. A., Mørkeberg, J., Juul, Anders, Freiesleben, S. Y., Upners, E. N., Dehnes, Y. & Nordsborg, Nikolai Baastrup, 2020, In: Frontiers in Physiology. 11, 11 p., 563620.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Stability and detectability of testosterone esters in dried blood spots after intramuscular injections

    Solheim, S. A., Levernaes, M. C. S., Mørkeberg, J., Juul, Anders, Upners, E. N., Nordsborg, Nikolai Baastrup & Dehnes, Y., 2022, In: Drug Testing and Analysis. 14, 11-12, p. 1926-1937 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    No pain, just gain: Painless, easy, and fast dried blood spot collection from fingertip and upper arm in doping control

    Solheim, S. A., Ringsted, T. K., Nordsborg, Nikolai Baastrup, Dehnes, Y., Levernaes, M. C. S. & Mørkeberg, J., 2021, In: Drug Testing and Analysis. 13, 10, p. 1783-1790 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Single-dose administration of clenbuterol is detectable in dried blood spots

    Solheim, S. A., Jessen, Søren Kaare, Mørkeberg, J., Thevis, M., Dehnes, Y., Eibye, K., Hostrup, Morten & Nordsborg, Nikolai Baastrup, 2020, In: Drug Testing and Analysis. 12, 9, p. 1366-1372 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Autologous blood transfusion enhances exercise performance - strength of the evidence and physiological mechanisms

    Solheim, S. A., Bejder, Jacob, Breenfeldt Andersen, A., Mørkeberg, J. & Nordsborg, Nikolai Baastrup, 2019, In: Sports Medicine - Open. 5, 11 p., 30.

    Research output: Contribution to journal › Review › Research › peer-review

  10. Published

    The angiotensin-converting enzyme I/D polymorphism does not impact training-induced adaptations in exercise capacity in patients with stable coronary artery disease

    Sjúrðarson, Tórur, Kristiansen, J., Nordsborg, Nikolai Baastrup, Gregersen, N. O., Lydersen, L. N., Grove, E. L., Kristensen, S. D., Hvas, A. M. & Mohr, M., 2023, In: Scientific Reports. 13, 1, 11 p., 18300.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    15 weeks of soccer training increases left ventricular mass and improves indices of left ventricular diastolic function in previously sedentary, mildly hypertensive, middle-aged women

    Sjúrðarson, Tórur, Kyhl, K., Nordsborg, Nikolai Baastrup, Kollslíð, R., Andersen, L. J., Krustrup, P. & Mohr, M., 2024, In: European Journal of Applied Physiology. 124, p. 1621–1629

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Effect of angiotensin-converting enzyme inhibition on cardiovascular adaptation to exercise training

    Sjúrðarson, Tórur, Bejder, Jacob, Breenfeldt Andersen, A., Bonne, T., Kyhl, K., Róin, T., Patursson, Poula, Oddmarsdóttir Gregersen, N., Skoradal, M., Schliemann, M., Lindegaard, M., Weihe, P., Mohr, M. & Nordsborg, Nikolai Baastrup, 2022, In: Physiological Reports. 10, 13, 13 p., e15382.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Robust arm and leg muscle adaptation to training despite ACE inhibition: a randomized placebo-controlled trial

    Sjúrðarson, Tórur, Bejder, Jacob, Breenfeldt Andersen, A., Bonne, T. C., Kyhl, K., Thomassen, Martin, Prats Quesada, Júlia, Oddmarsdóttir Gregersen, N., Skoradal, M., Weihe, P., Nordsborg, Nikolai Baastrup & Mohr, M., 2023, In: European Journal of Applied Physiology. 123, 2, p. 325-337 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Hypoxia increases exercise heart rate despite combined inhibition of β-adrenergic and muscarinic receptors

    Siebenmann, C., Rasmussen, P., Sørensen, H., Bonne, T. C., Zaar, M., Aachmann-Andersen, N. J., Nordsborg, Nikolai Baastrup, Secher, Niels H. & Lundby, C., 2015, In: American Journal of Physiology: Heart and Circulatory Physiology. 308, 12, p. H1540-H1546 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    "Live high-train low" using normobaric hypoxia: a double-blinded, placebo-controlled study

    Siebenmann, C., Robach, P., Jacobs, R. A., Rasmussen, P., Nordsborg, Nikolai Baastrup, Diaz, V., Christ, A., Olsen, N. V., Maggiorini, M. & Lundby, C., 2012, In: Journal of Applied Physiology. 112, 1, p. 106-117 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Cerebral lactate uptake during exercise is driven by the increased arterial lactate concentration

    Siebenmann, C., Sørensen, H., Bonne, T. C., Zaar, M., Aachmann-Andersen, N. J., Nordsborg, Nikolai Baastrup, Nielsen, H. B., Secher, Niels H., Lundby, C. & Rasmussen, P., 2021, In: Journal of Applied Physiology. 131, 6, p. 1824-1830 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    G16R single nucleotide polymorphism but not haplotypes of the ß2-adrenergic receptor gene alters cardiac output in humans

    Rokamp, K. Z., Staalsø, J. M., Gartmann, M., Sletgaard, A., Nordsborg, Nikolai Baastrup, Secher, Niels H., Nielsen, H. B. & Olsen, N. V., 2013, In: Clinical Science. 125, 4, p. 191-198 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    The role of haemoglobin mass on VO(2)max following normobaric 'live high-train low' in endurance-trained athletes

    Robach, P., Siebenmann, C., Jacobs, R. A., Rasmussen, P., Nordsborg, Nikolai Baastrup, Pesta, D., Gnaiger, E., Díaz, V., Christ, A., Fiedler, J., Crivelli, N., Secher, Niels H., Pichon, A., Maggiorini, M. & Lundby, C., 2012, In: British Journal of Sports Medicine. 46, 11, p. 822-827 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Brain and skin do not contribute to the systemic rise in erythropoietin during acute hypoxia in humans

    Rasmussen, P., Nordsborg, Nikolai Baastrup, Taudorf, S., Sørensen, H., Berg, Ronan Martin Griffin, Jacobs, R. A., Bailey, D. M., Olsen, N. V., Secher, Niels H., Møller, Kirsten & Lundby, C., 2012, In: F A S E B Journal. 26, 5, p. 1831-1834 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Exercise induced regulation of muscular Na+,K+ pump, FXYD1, and NHE1 mRNA and protein expression: importance of training status, intensity, and muscle type

    Rasmussen, M. K., Juel, C. & Nordsborg, Nikolai Baastrup, 2011, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 300, 5, p. R1209-R1220 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Monitoring muscle fatigue progression during dynamic exercise

    Rannou, F., Nybo, Lars, Andersen, J. E. & Nordsborg, Nikolai Baastrup, 2019, In: Medicine and Science in Sports and Exercise. 51, 7, p. 1498-1505 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Muscle contractile characteristics during exhaustive dynamic exercise and recovery

    Rannou, F., Nybo, Lars, Andersen, J. E. & Nordsborg, Nikolai Baastrup, 2021, In: Frontiers in Physiology. 12, 11 p., 660099.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Detection of erythropoietin in blood to uncover doping in sports using machine learning

    Rahman, M. R., Bejder, Jacob, Bonne, T. C., Andersen, A. B., Huertas, J. R., Aikin, R., Nordsborg, Nikolai Baastrup & Maass, W., 2022, Proceedings - 2022 IEEE International Conference on Digital Health, ICDH 2022. Ahamed, S. I., Ardagna, C. A., Bian, H., Bochicchio, M., Chang, C. K., Chang, R. N., Damiani, E., Liu, L., Pavel, M., Priami, C., Shahriar, H., Ward, R., Xhafa, F., Zhang, J. & Zulkernine, F. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 193-201 9 p. (IEEE International Conference on Digital Health, Vol. 2022).

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  24. Published

    AI-based approach for improving the detection of blood doping in sports

    Rahman, M. R., Bejder, Jacob, Bonne, T. C., Breenfeldt Andersen, A., Huertas, J. R., Aikin, R., Nordsborg, Nikolai Baastrup & Maaß, W., 9 Feb 2022, arxiv.org, p. 1-7, 7 p.

    Research output: Working paper › Preprint

  25. Published

    Forskning i Bevægelse: Et nyt forskningsfelt i et 100-årigt perspektiv

    Poulsen, A. L. (ed.), Trangbæk, Else (ed.), Jørgensen, K. (ed.) & Nordsborg, Nikolai Baastrup (ed.), 2009, København: Museum Tusculanum. 376 p.

    Research output: Book/Report › Book › Education › peer-review

  26. Published

    Reproducibility of the CO rebreathing technique with a lower CO dose and a shorter rebreathing duration at sea level and at 2320 m of altitude

    Oberholzer, L., Bonne, T. C., Breenfeldt Andersen, A., Bejder, Jacob, Højgaard Christensen, R., Nordsborg, Nikolai Baastrup & Lundby, C., 2020, In: Scandinavian Journal of Clinical & Laboratory Investigation. 80, 7, p. 590-599 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Physiological characteristics of an aging Olympic athlete

    Nybo, Lars, Schmidt, J. F., Fritzdorf, S. & Nordsborg, Nikolai Baastrup, 2014, In: Medicine and Science in Sports and Exercise. 46, 11, p. 2132-2138 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    Erythropoietin does not reduce plasma lactate, H+, and K+ during intense exercise

    Nordsborg, Nikolai Baastrup, Robach, P., Boushel, R., Calbet, J. A. L. & Lundby, C., 2015, In: Scandinavian Journal of Medicine & Science in Sports. 25, 6, p. e566-e575 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Relative workload determines exercise-induced increases in PGC-1alpha mRNA

    Nordsborg, Nikolai Baastrup, Lundby, C., Leick, L. & Pilegaard, Henriette, 2010, In: Medicine and Science in Sports and Exercise. 42, 8, p. 1477-1484 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    Oxidative capacity and glycogen content increase more in arm than leg muscle in sedentary women after intense training

    Nordsborg, Nikolai Baastrup, Connolly, L., Weihe, P., Iuliano, E., Krustrup, P., Saltin, B. & Mohr, M., 2015, In: Journal of Applied Physiology. 119, 2, p. 116-123 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Glucocorticoids accelerate erythropoiesis in healthy humans - should the use in sports be reevaluated?

    Nordsborg, Nikolai Baastrup, Bonne, T. C., Breenfeldt Andersen, A., Sørensen, H. & Bejder, Jacob, 2023, In: Medicine and Science in Sports and Exercise. 55, 7, p. 1334-1341 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Estimating energy expenditure during front crawl swimming using accelerometers

    Nordsborg, Nikolai Baastrup, Espinosa, H. G. & Van Thiel, D. H., 2014, In: Procedia Engineering. 72, p. 132-137 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Contraction-induced changes in skeletal muscle Na(+), K(+) pump mRNA expression - importance of exercise intensity and Ca(2+)-mediated signalling

    Nordsborg, Nikolai Baastrup, Kusuhara, K., Hellsten, Ylva, Lyngby, A. S. B., Lundby, C., Madsen, K. & Pilegaard, Henriette, 2010, In: Acta Physiologica (Print). 198, 4, p. 487-98

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Human muscle net K+ release during exercise is unaffected by elevated anaerobic metabolism, but reduced after prolonged acclimatization to 4100 m

    Nordsborg, Nikolai Baastrup, Calbet, J. A. L., Sander, M., van Hall, Gerrit, Juel, C., Saltin, B. & Lundby, C., 2010, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 299, 1, p. R306-R313 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Integreret fysiologi

    Nordsborg, Nikolai Baastrup, 2009, Forskning i Bevægelse: Et nyt forskningsfelt i et 100-årigt perspektiv. Poulsen, A. L., Trangbæk, E., Jørgensen, K. & Nordsborg, N. (eds.). København: Museum Tusculanum, p. 313-317 5 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Education › peer-review

  36. Published

    A 3-min all-out upper-body ergometer test for competitive swimmers

    Nordsborg, Nikolai Baastrup, Aragón-Vela, J., Bonne, T. & Mohr, M., 2021, In: International Journal of Sports Medicine. 42, 8, p. 724-730 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Contraction induced changes in skeletal muscle Na+, K+ pump mRNA expression - importance of exercise intensity and Ca2+ mediated signalling

    Nordsborg, Nikolai Baastrup, Kusuhara, K., Hellsten, Ylva, Lyngby, S., Lundby, C., Madsen, K. & Pilegaard, Henriette, 2010, In: Acta Physiologica (Print Edition). 198, 4, p. 487-498 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Four weeks of normobaric "live high-train low" do not alter muscular or systemic capacity for maintaining pH and K+ homeostasis during intense exercise

    Nordsborg, Nikolai Baastrup, Siebenmann, C., Jacobs, R. A., Rasmussen, Per, Diaz, V., Robach, P. & Lundby, C., 2012, In: Journal of Applied Physiology. 112, 12, p. 2027-2036 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Muscle interstitial potassium kinetics during intense exhaustive exercise: effect of previous arm exercise

    Nordsborg, Nikolai Baastrup, Mohr, M., Pedersen, L. D., Nielsen, Jens Jung, Langberg, Henning & Bangsbo, Jens, 2003, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 285, 1, p. R143-R148 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Svedig videnskab: hvad sker der, når du bliver udmattet?

    Nordsborg, Nikolai Baastrup, 2007, In: CPH Sport. Maj, p. 12 1 p.

    Research output: Contribution to journal › Journal article › Communication

  41. Published

    Når børn lærer at svømme

    Nordsborg, Nikolai Baastrup & Høck, S., 2006

    Research output: Non-textual form › Sound/Visual production (digital) › Education

  42. Published

    Contraction-induced increases in Na+-K+-ATPase mRNA levels in human skeletal muscle are not amplified by activation of additional muscle mass

    Nordsborg, Nikolai Baastrup, Thomassen, Martin, Lundby, C., Pilegaard, Henriette & Bangsbo, Jens, 2005, In: American Journal of Physiology: Regulatory, Integrative and Comparative Physiology. 289, 1, p. R84-R91 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Effect of exercise on interstitial K+, fatigue development and Na+, K+ pump mRNA expression in human muscle

    Nordsborg, Nikolai Baastrup, 2005, Copenhagen: Institut for Idræt, Københavns Universitet. 79 p.

    Research output: Book/Report › Ph.D. thesis › Research

  44. Published

    Effect of dexamethasone on skeletal muscle Na+,K+ pump subunit specific expression and K+ homeostasis during exercise in humans

    Nordsborg, Nikolai Baastrup, Ovesen, J., Thomassen, Martin, Zangenberg, M., Jøns, C., Iaia, F. M., Nielsen, Jens Jung & Bangsbo, Jens, 2008, In: Journal of Physiology. 586, 5, p. 1447-1459 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Effektiv træning - kort og godt

    Nordsborg, Nikolai Baastrup & Bangsbo, Jens, 2007, In: CPH Sport. Nov., p. 8 1 p.

    Research output: Contribution to journal › Journal article › Communication

  46. Published

    Dexamethasone up-regulates skeletal muscle maximal Na+,K+ pump activity by muscle group specific mechanisms in humans

    Nordsborg, Nikolai Baastrup, Goodmann, C., McKenna, M. J. & Bangsbo, Jens, 2005, In: Journal of Physiology. 567, 2, p. 583-589 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Effect of high-intensity training on exercise-induced gene expression specific to ion homeostasis and metabolism

    Nordsborg, Nikolai Baastrup, Bangsbo, Jens & Pilegaard, Henriette, 2003, In: Journal of Applied Physiology. 95, 3, p. 1201-1206 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Improved metabolic fitness, but no cardiovascular health effects, of a low-frequency short-term combined exercise program in 50-70-year-olds with low fitness: A randomized controlled trial

    Nielsen, T., Møller, T. K. T., Olesen, N. D., Zebis, M. K., Ritz, C., Nordsborg, Nikolai Baastrup, Hansen, Peter Riis & Krustrup, P., 2022, In: European Journal of Sport Science. 22, 3, p. 460-473 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Glucocorticoids enhance muscle endurance and ameliorate Duchenne muscular dystrophy through a defined metabolic program

    Morrison-Nozik, A., Anand, P., Zhu, H., Duan, Q., Sabeh, M., Prosdocimo, D. A., Lemieux, M. E., Nordsborg, Nikolai Baastrup, Russell, A. P., MacRae, C. A., Gerber, A. N., Jain, M. K. & Haldar, S. M., 2015, In: Proceedings of the National Academy of Sciences of the United States of America. 112, 49, p. E6780-E6789 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    Potassium kinetics in human muscle interstitium during repeated intense exercise in relation to fatigue

    Mohr, M., Nordsborg, Nikolai Baastrup, Nielsen, Jens Jung, Danneman Pedersen, L., Fischer, C., Krustrup, P. & Bangsbo, Jens, 2004, In: Pflügers Archiv: European Journal of Physiology. 448, 4, p. 452-456 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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