Jacob Bejder
Assistant Professor
The August Krogh Section for Human Physiology
Nørre Allé 51
2200 København N
- 2015
- 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 journal › Journal article › Research › peer-review
- 2016
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- Published
New insights for identification of doping with recombinant human erythropoietin micro-doses after high hydration
Martin, L., Ashenden, M., Bejder, Jacob, Hoffmann, M., Nordsborg, Nikolai Baastrup, Karstoft, K., Mørkeberg, J. S., Sharpe, K., Lasne, F. & Marchand, A., 2016, In: Drug Testing and Analysis. 8, 11-12, p. 1119-1130 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2017
- 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 journal › Journal article › Research › peer-review
- 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 journal › Comment/debate › Research
- 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 journal › Comment/debate › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 2018
- 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 journal › Contribution to newspaper - Feature article › Communication
- Published
Response
Bejder, Jacob & Nordsborg, Nikolai Baastrup, 2018, In: Exercise and Sport Sciences Reviews. 46, 4, p. 272 1 p.Research output: Contribution to journal › Comment/debate › Research
- 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 journal › Journal article › Research › peer-review
- Published
Oxygen conserving mitochondrial adaptations in the skeletal muscles of breath hold divers
Kjeld, T., Stride, N., Gudiksen, Anders, Hansen, E. G., Arendrup, H. C., Horstmann, P. F., Zerahn, B., Jensen, Lars Thorbjørn, Nordsborg, Nikolai Baastrup, Bejder, Jacob & Halling, Jens Frey, 19 Sep 2018, In: P L o S One. 13, 9, p. 1-13 13 p., e0201401.Research output: Contribution to journal › Journal article › Research › peer-review
- 2019
- Published
Detection and Physiological Effects of Blood Volume Manipulations
Bejder, Jacob, 2019, Copenhagen: Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen. 80 p.Research output: Book/Report › Ph.D. thesis › Research
- 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 journal › Journal article › Research › peer-review
- 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 journal › Comment/debate › Research
- 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 journal › Journal article › Research › peer-review
- 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
- 2020
- 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 journal › Journal article › Research › peer-review
- 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 journal › Review › Research › peer-review
- Published
Low doses of recombinant human erythropoietin does not affect C-terminal FGF23 in healthy men
Bejder, Jacob, Robach, P., Lundby, A., Cornu, C., Sallet, P., Cairo, G. & Lundby, C., 2020, In: Drug Testing and Analysis. 12, 7, p. 975-979 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- Published
Impact of low-volume concurrent strength training distribution on muscular adaptation
Kilen, Anders, Bay, J., Bejder, Jacob, Andersen, A. B., Bonne, T. C., Larsen, P. D., Carlsen, A., Egelund, J., Nybo, Lars, Mackey, Abigail, Olsen, N. V., Aachmann-Andersen, N. J., Andersen, J. L. & Nordsborg, Nikolai Baastrup, 2020, In: Journal of Science and Medicine in Sport. 23, 10, p. 999-1004 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 2021
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- Published
An abductive inference approach to assess the performance-enhancing effects of drugs included on the World Anti-Doping Agency Prohibited List
Breenfeldt Andersen, A., Jacobson, G. A., Bejder, Jacob, Premilovac, D., Richards, S. M., Rasmussen, J. J., Jessen, Søren Kaare & Hostrup, Morten, 2021, In: Sports Medicine. 51, 7, p. 1353-1376 24 p.Research output: Contribution to journal › Review › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- Published
Immature reticulocytes are sensitive and specific to low-dose erythropoietin treatment at sea level and altitude
Jeppesen, Jan Sommer, Breenfeldt Andersen, A., Bonne, T. C., Thomassen, Martin, Sørensen, Helle, Nordsborg, Nikolai Baastrup, Olsen, N. V., Huertas, J. R. & Bejder, Jacob, 2021, In: Drug Testing and Analysis. 13, 7, p. 1331-1340 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Distribution of concurrent training sessions does not impact endurance adaptation
Kilen, Anders, Bay, J., Bejder, Jacob, Breenfeldt Andersen, A., Bonne, T., Larsen, P., Carlsen, A., Egelund, J., Nybo, Lars, Olsen, N. V., Aachmann-Andersen, N. J., Løvind Andersen, J. & Nordsborg, Nikolai Baastrup, 2021, In: Journal of Science and Medicine in Sport. 24, 3, p. 291-296 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Extreme hypoxia causing brady-arrythmias during apnea in elite breath-hold divers
Kjeld, T., Isbrand, A. B., Linnet, K., Zerahn, B., Højberg, J., Hansen, E. G., Gormsen, L. C., Bejder, Jacob, Krag, T., Vissing, John, Bøtker, H. E. & Arendrup, H. C., 2021, In: Frontiers in Physiology. 12, 12 p., 712573.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Reliability and validity of the SHFT running power meter
Linkis, J. E., Bonne, T. C., Bejder, Jacob, Rasmussen, E. K., Breenfeldt Andersen, A. & Nordsborg, Nikolai Baastrup, 2021, In: Sensors. 21, 22, 9 p., 7516.Research output: Contribution to journal › Journal article › Research › peer-review
- 2022
- Published
Commentaries on Viewpoint: Consider iron status when making sex comparisons in human physiology: How to account for the potential sex-specific influence in iron status in human physiology
Andersen, A. B., Bejder, Jacob & Gliemann, Lasse, 2022, In: Journal of Applied Physiology. 132, 3, p. 704-705 2 p.Research output: Contribution to journal › Comment/debate › Research
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Conference abstract in journal › Research › peer-review
- 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 › Research
- 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
- 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
- 2023
- 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 journal › Journal article › Research › peer-review
- Published
A semi-automated device rapidly determine circulating blood volume in healthy males and carbon monoxide uptake kinetics of arterial and venous blood
Breenfeldt Andersen, A., Baungaard, S. B., Bejder, Jacob, Graae, Jonathan, Hristovska, A., Agerskov, M., Holm-Sørensen, H. & Foss, Nicolai Bang, 2023, In: Journal of Clinical Monitoring and Computing. 37, 2, p. 437-447 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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
- 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
- 2024
- 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 journal › Review › Research › peer-review
- 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. 1-10Research output: Contribution to journal › Journal article › Research › peer-review
- Accepted/In press
mRNA biomarkers sensitive and specific to micro-dose erythropoietin treatment at sea level and altitude
Loria, F., Breenfeldt Andersen, A., Bejder, Jacob, Bonne, T., Grabherr, S., Kuuranne, T., Leuenberger, N. & Nordsborg, Nikolai Baastrup, 2024, (Accepted/In press) In: Drug Testing and Analysis.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Determinants and reference values for blood volume and total hemoglobin mass in women and men
Oberholzer, L., Montero, D., Robach, P., Siebenmann, C., Ryrsøe, C. K., Bonne, T. C., Breenfeldt Andersen, A., Bejder, Jacob, Karlsen, T., Edvardsen, E., Rønnestad, B. R., Hamarsland, H., Cepeda-Lopez, A. C., Rittweger, J., Treff, G., Ahlgrim, C., Almquist, N. W., Hallén, J. & Lundby, C., 2024, In: American Journal of Hematology. 99, 1, p. 88-98 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 117950567
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196
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Oxygen conserving mitochondrial adaptations in the skeletal muscles of breath hold divers
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
164
downloads
Autologous blood transfusion enhances exercise performance - strength of the evidence and physiological mechanisms
Research output: Contribution to journal › Review › Research › peer-review
Published -
57
downloads
An untargeted urine metabolomics approach for autologous blood transfusion detection
Research output: Contribution to journal › Journal article › Research › peer-review
Published