Katsuhiro Koyama

1.9k total citations
57 papers, 781 citations indexed

About

Katsuhiro Koyama is a scholar working on Physiology, Genetics and Orthopedics and Sports Medicine. According to data from OpenAlex, Katsuhiro Koyama has authored 57 papers receiving a total of 781 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Physiology, 14 papers in Genetics and 11 papers in Orthopedics and Sports Medicine. Recurrent topics in Katsuhiro Koyama's work include High Altitude and Hypoxia (12 papers), Adipose Tissue and Metabolism (10 papers) and Exercise and Physiological Responses (8 papers). Katsuhiro Koyama is often cited by papers focused on High Altitude and Hypoxia (12 papers), Adipose Tissue and Metabolism (10 papers) and Exercise and Physiological Responses (8 papers). Katsuhiro Koyama collaborates with scholars based in Japan, United States and India. Katsuhiro Koyama's co-authors include Daisuke Ando, Mitsuya Yamakita, Kazushige Goto, Yoshifumi Tsuchiya, Masahiro Horiuchi, Seiki Hori, Junzo Tsujita, Yasuki Higaki, Michael F. Hirshman and Laurie J. Goodyear and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and FEBS Letters.

In The Last Decade

Katsuhiro Koyama

55 papers receiving 765 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Katsuhiro Koyama Japan 14 334 185 142 113 100 57 781
P. Berthon France 17 311 0.9× 166 0.9× 240 1.7× 218 1.9× 40 0.4× 30 718
I. K. Martin Australia 10 399 1.2× 159 0.9× 138 1.0× 188 1.7× 48 0.5× 17 715
S Manjunatha India 12 388 1.2× 58 0.3× 273 1.9× 152 1.3× 82 0.8× 40 837
Randall W. Bryner United States 13 447 1.3× 138 0.7× 364 2.6× 152 1.3× 118 1.2× 20 905
Corey R. Hart United States 19 309 0.9× 106 0.6× 185 1.3× 114 1.0× 113 1.1× 41 869
J.P. Thissen Belgium 13 339 1.0× 130 0.7× 466 3.3× 147 1.3× 74 0.7× 18 1.1k
Cheryl A. Smith United States 15 217 0.6× 89 0.5× 327 2.3× 87 0.8× 65 0.7× 30 665
Saori Kakehi Japan 16 379 1.1× 83 0.4× 224 1.6× 128 1.1× 181 1.8× 56 682
Irene Koukoulas Australia 18 411 1.2× 455 2.5× 583 4.1× 223 2.0× 66 0.7× 28 1.4k
David Nethery United States 23 313 0.9× 381 2.1× 518 3.6× 154 1.4× 90 0.9× 43 1.5k

Countries citing papers authored by Katsuhiro Koyama

Since Specialization
Citations

This map shows the geographic impact of Katsuhiro Koyama'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 Katsuhiro Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Katsuhiro Koyama more than expected).

Fields of papers citing papers by Katsuhiro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Katsuhiro Koyama. 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 Katsuhiro Koyama. The network helps show where Katsuhiro Koyama may publish in the future.

Co-authorship network of co-authors of Katsuhiro Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuhiro Koyama. A scholar is included among the top collaborators of Katsuhiro Koyama 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 Katsuhiro Koyama. Katsuhiro Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hasegawa, Tatsuya, et al.. (2024). Influence of short-term hypoxic exposure on spatial learning and memory function and brain-derived neurotrophic factor in rats—A practical implication to human's lost way. Frontiers in Behavioral Neuroscience. 18. 1330596–1330596. 1 indexed citations
2.
Horiuchi, Masahiro, Yoshiyuki Fukuoka, Katsuhiro Koyama, & Samuel J. Oliver. (2023). Five Days of Tart Cherry Supplementation Improves Exercise Performance in Normobaric Hypoxia. Nutrients. 15(2). 388–388. 3 indexed citations
3.
Horiuchi, Masahiro, et al.. (2022). Comparisons Between Normobaric Normoxic and Hypoxic Recovery on Post-exercise Hemodynamics After Sprint Interval Cycling in Hypoxia. Frontiers in Physiology. 13. 843574–843574. 3 indexed citations
4.
5.
Koyama, Katsuhiro, et al.. (2019). Impact of Dietary Nitrate Supplementation on Executive Function During Hypoxic Exercise. High Altitude Medicine & Biology. 20(2). 187–191. 8 indexed citations
6.
Hitosugi, Masahito, et al.. (2019). Biomechanical Analysis of the Head Movements of a Person Thrown by the Judo Technique ‘Seoi-nage’. Neurologia medico-chirurgica. 60(2). 101–106. 10 indexed citations
7.
Ando, Daisuke, et al.. (2018). Caloric restriction suppresses exercise-induced hippocampal BDNF expression in young male rats. SHILAP Revista de lepidopterología. 7(4). 239–245. 2 indexed citations
8.
Horiuchi, Masahiro, et al.. (2016). Cognitive Function and Cerebral Oxygenation During Prolonged Exercise Under Hypoxia in Healthy Young Males. High Altitude Medicine & Biology. 17(3). 214–221. 28 indexed citations
9.
Yamazaki, Masahiko, et al.. (2015). Intravenous infusion of H2-saline suppresses oxidative stress and elevates antioxidant potential in Thoroughbred horses after racing exercise. Scientific Reports. 5(1). 15514–15514. 19 indexed citations
10.
Hitosugi, Masahito, et al.. (2014). Rotational Acceleration during Head Impact Resulting from Different Judo Throwing Techniques. Neurologia medico-chirurgica. 54(5). 374–378. 20 indexed citations
11.
Ando, Daisuke, et al.. (2012). Effects of high-intensity exercise and antioxidant administration on brain-derived neurotrophic factor (BDNF) in the rat hippocampus. Japanese Journal of Physical Fitness and Sports Medicine. 61(1). 111–117. 3 indexed citations
12.
Ando, Daisuke, Mitsuya Yamakita, Zentaro Yamagata, & Katsuhiro Koyama. (2009). Effects of Glutathione Depletion on Hypoxia-induced Erythropoietin Production in Rats. Journal of PHYSIOLOGICAL ANTHROPOLOGY. 28(5). 211–215. 3 indexed citations
13.
Ando, Daisuke, et al.. (2006). INFLUENCE OF ANTHROPOMETRIC MEASURES AND LIFESTYLE-RELATED FACTORS ON THE TWO-YEAR CHANGES OF BONE MASS IN COLLEGE-AGED WOMEN. Japanese Journal of Physical Fitness and Sports Medicine. 55(3). 331–340. 2 indexed citations
14.
Ishigaki, T., Katsuhiro Koyama, Junzo Tsujita, et al.. (2005). Plasma Leptin Levels of Elite Endurance Runners after Heavy Endurance Training. Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science. 24(6). 573–578. 27 indexed citations
15.
Yamazaki, Ryo, T. Yoshida, T. Terasawa, Aya Bamba, & Katsuhiro Koyama. (2004). Constraints on the diffusive shock acceleration from the nonthermal X-ray thin shells in SN 1006 NE rim. Springer Link (Chiba Institute of Technology). 34 indexed citations
16.
Koyama, Katsuhiro, et al.. (2004). The Influence of VDR Genotype and Exercise on Ultrasound Parameters in Young Adult Japanese Women.. Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science. 23(2). 49–55. 12 indexed citations
17.
Ando, Daisuke, et al.. (2003). THE ROLE OF BILIRUBIN ON EXERCISE-INDUCED OXIDATIVE STRESS. Medicine & Science in Sports & Exercise. 35(Supplement 1). S122–S122.
18.
Koyama, Katsuhiro, et al.. (2002). The Relation of Calcaneal Ultrasound Bone Parameter to Physical Activity in Japanese Adult Females (CONTRIBUTION 骨粗鬆症の診断と治療). 10(1). 99–108. 1 indexed citations
19.
Hasegawa, A., Katsuhiro Koyama, Yasushi Okazaki, Manabu Sugimoto, & S. Isojima. (1994). Amino acid sequence of a porcine zona pellucida glycoprotein ZP4 determined by peptide mapping and cDNA cloning. Reproduction. 100(1). 245–255. 51 indexed citations
20.
Kondo, Yoshiyuki, et al.. (1985). Surfactant-induced conformational change in porcine brain calmodulin.. KOBUNSHI RONBUNSHU. 42(7). 467–471. 1 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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