Michael Kjær

53.9k total citations · 5 hit papers
658 papers, 40.3k citations indexed

About

Michael Kjær is a scholar working on Orthopedics and Sports Medicine, Surgery and Cell Biology. According to data from OpenAlex, Michael Kjær has authored 658 papers receiving a total of 40.3k indexed citations (citations by other indexed papers that have themselves been cited), including 293 papers in Orthopedics and Sports Medicine, 178 papers in Surgery and 125 papers in Cell Biology. Recurrent topics in Michael Kjær's work include Tendon Structure and Treatment (189 papers), Sports injuries and prevention (150 papers) and Muscle metabolism and nutrition (99 papers). Michael Kjær is often cited by papers focused on Tendon Structure and Treatment (189 papers), Sports injuries and prevention (150 papers) and Muscle metabolism and nutrition (99 papers). Michael Kjær collaborates with scholars based in Denmark, United States and Sweden. Michael Kjær's co-authors include Per Aagaard, S. Peter Magnusson, Henning Langberg, Katja M. Heinemeier, Abigail L. Mackey, Charlotte Suetta, H. Galbo, Peter Schjerling, S. Peter Magnusson and Jesper L. Andersen and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and The Lancet.

In The Last Decade

Michael Kjær

649 papers receiving 39.0k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Postoperative Radiotherapy in High-Risk Premenopausal Women with Breast Cancer Who Receive Adjuvant Chemotherapy

1997 1.9k citations Michael Kjær et al. profile →
Postoperative radiotherapy in high-risk postmenopausal breast-cancer patients given adjuvant tamoxifen: Danish Breast Cancer Cooperative Group DBCG 82c randomised trial

1999 1.2k citations Michael Kjær et al. profile →
Role of Extracellular Matrix in Adaptation of Tendon and Skeletal Muscle to Mechanical Loading

2004 1.1k citations Michael Kjær profile →
Muscle and Blood Metabolites during a Soccer Game

2006 561 citations Michael Kjær et al. Medicine & Science in Sports & Exercise profile →
Role of the nervous system in sarcopenia and muscle atrophy with aging: strength training as a countermeasure

2010 533 citations Per Aagaard, S. Peter Magnusson et al. Scandinavian Journal of Medicine and Science in Sports profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Michael Kjær Denmark	109	17.5k	10.8k	7.2k	6.7k	6.7k	658	40.3k
Bengt Saltin Denmark	122	14.8k 0.8×	2.8k 0.3×	13.6k 1.9×	7.1k 1.1×	19.5k 2.9×	496	52.0k
Mark A. Tarnopolsky Canada	105	8.3k 0.5×	1.7k 0.2×	14.7k 2.1×	12.1k 1.8×	14.0k 2.1×	546	36.2k
Robert U. Newton Australia	97	20.4k 1.2×	2.7k 0.3×	3.2k 0.4×	1.4k 0.2×	5.6k 0.8×	672	35.5k
Stefan Lohmander Sweden	84	8.3k 0.5×	22.7k 2.1×	2.5k 0.4×	2.8k 0.4×	1.5k 0.2×	418	38.5k
George A. Brooks United States	86	5.0k 0.3×	912 0.1×	7.6k 1.1×	6.4k 0.9×	9.0k 1.4×	285	27.6k
Sundeep Khosla United States	113	21.6k 1.2×	7.8k 0.7×	1.4k 0.2×	21.3k 3.2×	7.0k 1.1×	511	51.8k
Hirofumi Tanaka United States	81	3.2k 0.2×	2.3k 0.2×	1.8k 0.3×	4.7k 0.7×	5.7k 0.9×	668	28.2k
Mark A. Febbraio Australia	98	2.5k 0.1×	2.2k 0.2×	5.8k 0.8×	10.5k 1.6×	15.8k 2.4×	297	31.6k
Jack Taunton Canada	73	7.2k 0.4×	3.9k 0.4×	3.0k 0.4×	8.6k 1.3×	1.1k 0.2×	281	21.4k
B. Lawrence Riggs United States	121	29.3k 1.7×	9.9k 0.9×	924 0.1×	18.7k 2.8×	5.7k 0.9×	390	55.4k

Countries citing papers authored by Michael Kjær

Since Specialization

Citations

This map shows the geographic impact of Michael Kjær's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Michael Kjær with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Michael Kjær more than expected).

Fields of papers citing papers by Michael Kjær

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Michael Kjær. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Michael Kjær. The network helps show where Michael Kjær may publish in the future.

Co-authorship network of co-authors of Michael Kjær

This figure shows the co-authorship network connecting the top 25 collaborators of Michael Kjær. A scholar is included among the top collaborators of Michael Kjær based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Michael Kjær. Michael Kjær is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Melin, Anna, Mia Beck Lichtenstein, Lennart Friis‐Hansen, et al.. (2025). Lower Bone Mineral Density in Female Elite Athletes With Menstrual Dysfunction From Mixed Sports. Translational Sports Medicine. 2025(1). 4969624–4969624.

Traweger, Andreas, Alex Scott, Michael Kjær, et al.. (2025). Achilles tendinopathy. Nature Reviews Disease Primers. 11(1). 20–20. 6 indexed citations

Karlsen, Anders, René B. Svensson, Peter Schjerling, et al.. (2024). Insulin‐like growth factor‐1 infusion in preterm piglets does not affect growth parameters of skeletal muscle or tendon tissue. Experimental Physiology. 109(9). 1529–1544. 1 indexed citations

Soendenbroe, Casper, Anders Karlsen, René B. Svensson, et al.. (2023). Marked irregular myofiber shape is a hallmark of human skeletal muscle ageing and is reversed by heavy resistance training. Journal of Cachexia Sarcopenia and Muscle. 15(1). 306–318. 15 indexed citations

Yeung, Ching‐Yan Chloé, René B. Svensson, Nikolaj M. Malmgaard‐Clausen, et al.. (2023). Disruption of day‐to‐night changes in circadian gene expression with chronic tendinopathy. The Journal of Physiology. 602(23). 6509–6524. 9 indexed citations

Tsuchiya, Yoshifumi, Monika L. Bayer, Peter Schjerling, Casper Soendenbroe, & Michael Kjær. (2022). Human derived tendon cells contribute to myotube formation in vitro. Experimental Cell Research. 417(1). 113164–113164. 6 indexed citations

Durigan, João Luíz Quagliotti, et al.. (2022). Differences in the cross‐sectional area along the ankle tendons with both age and sex. Journal of Anatomy. 242(2). 213–223. 5 indexed citations

Malmgaard‐Clausen, Nikolaj M., Peter E. Andersen, René B. Svensson, et al.. (2021). No Additive Clinical or Physiological Effects of Short-term Anti-inflammatory Treatment to Physical Rehabilitation in the Early Phase of Human Achilles Tendinopathy: A Randomized Controlled Trial. The American Journal of Sports Medicine. 49(7). 1711–1720. 17 indexed citations

Aagaard, Per, Patricia Larsen, René B. Svensson, et al.. (2020). The effect of low‐load resistance training with blood flow restriction on chronic patellar tendinopathy — A case series. Translational Sports Medicine. 3(4). 342–352. 22 indexed citations

10.

Garcia‐Erill, Genís, Michael Kjær, Anders Albrechtsen, Hans R. Siegismund, & Rasmus Heller. (2020). Vicariance followed by secondary gene flow in a young gazelle species complex. Molecular Ecology. 30(2). 528–544. 5 indexed citations

11.

Herchenhan, Andreas, et al.. (2019). Early Growth Response Genes Increases Rapidly After Mechanical Overloading and Unloading in Tendon Constructs. Journal of Orthopaedic Research®. 38(1). 173–181. 13 indexed citations

12.

Kristensen, David M., Christèle Lethimonier, Abigail L. Mackey, et al.. (2018). Ibuprofen alters human testicular physiology to produce a state of compensated hypogonadism. Proceedings of the National Academy of Sciences. 115(4). E715–E724. 91 indexed citations

13.

Mackey, Abigail L., Mélanie Magnan, Bénédicte Chazaud, & Michael Kjær. (2017). Human skeletal muscle fibroblasts stimulate in vitro myogenesis and in vivo muscle regeneration. The Journal of Physiology. 595(15). 5115–5127. 77 indexed citations

14.

Eliasson, Pernilla, et al.. (2017). Simvastatin and atorvastatin reduce the mechanical properties of tendon constructs in vitro and introduce catabolic changes in the gene expression pattern. PLoS ONE. 12(3). e0172797–e0172797. 22 indexed citations

15.

Beyer, Nina, et al.. (2017). Improved skeletal muscle mass and strength after heavy strength training in very old individuals. Experimental Gerontology. 92. 96–105. 42 indexed citations

16.

Andersen, Jesper L., et al.. (2017). Inflammation Relates to Resistance Training–induced Hypertrophy in Elderly Patients. Medicine & Science in Sports & Exercise. 49(6). 1079–1085. 17 indexed citations

17.

Kongsgaard, M., Per Aagaard, Simon Doessing, et al.. (2008). Peritendinous corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patella tendinopathy. Medicine & Science in Sports & Exercise. 1 indexed citations

18.

Kjær, Michael & Michael R. Krogsgaard. (2003). Textbook of sport medicine : basic science and clinical aspects of sport injury and physical activity. 20 indexed citations

19.

Jakobsen, Anders, Åke Berglund, Bengt Glimelius, et al.. (2002). Dose-effect Relationship of Bolus 5-Fluorouracil in the Treatment of Advanced Colorectal Cancer. Acta Oncologica. 41(6). 525–531. 23 indexed citations

20.

Kjær, Michael, Henning Langberg, Dorthe Skovgaard, et al.. (2000). In vivo studies of peritendinous tissue in exercise. Scandinavian Journal of Medicine and Science in Sports. 10(6). 326–331. 31 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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