Soichiro Koyama

1.4k total citations
74 papers, 941 citations indexed

About

Soichiro Koyama is a scholar working on Biomedical Engineering, Rehabilitation and Neurology. According to data from OpenAlex, Soichiro Koyama has authored 74 papers receiving a total of 941 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Biomedical Engineering, 16 papers in Rehabilitation and 16 papers in Neurology. Recurrent topics in Soichiro Koyama's work include Stroke Rehabilitation and Recovery (16 papers), Cerebral Palsy and Movement Disorders (16 papers) and Transcranial Magnetic Stimulation Studies (16 papers). Soichiro Koyama is often cited by papers focused on Stroke Rehabilitation and Recovery (16 papers), Cerebral Palsy and Movement Disorders (16 papers) and Transcranial Magnetic Stimulation Studies (16 papers). Soichiro Koyama collaborates with scholars based in Japan, Finland and United States. Soichiro Koyama's co-authors include Satoshi Tanaka, Akimasa Hirata, Ilkka Laakso, Valerio De Santis, Marko Mikkonen, Shigeo Tanabe, Yoshikiyo Kanada, Norihiro Sadato, Hiroaki Sakurai and Ryusuke Kakigi and has published in prestigious journals such as SHILAP Revista de lepidopterología, NeuroImage and Journal of Neurophysiology.

In The Last Decade

Soichiro Koyama

67 papers receiving 929 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Soichiro Koyama Japan 14 546 384 271 148 125 74 941
Maximilian J. Wessel Switzerland 19 584 1.1× 507 1.3× 202 0.7× 273 1.8× 156 1.2× 41 1.1k
Shota Miyaguchi Japan 17 690 1.3× 521 1.4× 269 1.0× 84 0.6× 118 0.9× 76 934
Diane L. Rotella United States 16 311 0.6× 553 1.4× 337 1.2× 90 0.6× 60 0.5× 28 923
Gowri Jayaram United States 8 1.1k 1.9× 699 1.8× 364 1.3× 193 1.3× 95 0.8× 9 1.3k
John Cirillo New Zealand 18 788 1.4× 640 1.7× 476 1.8× 146 1.0× 123 1.0× 45 1.1k
Alexandra Lackmy‐Vallée France 11 573 1.0× 300 0.8× 156 0.6× 137 0.9× 129 1.0× 22 809
Satoko Koganemaru Japan 16 526 1.0× 414 1.1× 201 0.7× 190 1.3× 104 0.8× 40 782
Boubker Zaaimi United Kingdom 16 415 0.8× 559 1.5× 357 1.3× 167 1.1× 262 2.1× 18 1.1k
Virginia Conde Germany 14 537 1.0× 557 1.5× 125 0.5× 63 0.4× 88 0.7× 21 904
Sung Hyun You South Korea 13 423 0.8× 193 0.5× 207 0.8× 327 2.2× 55 0.4× 26 790

Countries citing papers authored by Soichiro Koyama

Since Specialization
Citations

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

Fields of papers citing papers by Soichiro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Soichiro Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of Soichiro Koyama. A scholar is included among the top collaborators of Soichiro 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 Soichiro Koyama. Soichiro 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.
Tanabe, Shigeo, Soichiro Koyama, Kazuya Takeda, et al.. (2025). Clinical and Biomechanical Factors in the Sit‐to‐Stand Decline in Parkinson's Disease. Movement Disorders Clinical Practice. 12(10). 1539–1550.
2.
Koyama, Soichiro, Kazuya Takeda, Hiroaki Sakurai, et al.. (2024). Effect of Lee Silverman Voice Treatment® BIG on the major motor symptoms in patients with moderate Parkinson’s disease: an observational study. 72(2). 76–82. 2 indexed citations
3.
Sakurai, Hiroaki, Kazuya Takeda, Soichiro Koyama, et al.. (2024). Measurement of Physical Activity Divided Into Inside and Outside the Home in People With Parkinson's Disease: A Feasibility Study. Journal of Evaluation in Clinical Practice. 31(1). e14251–e14251. 1 indexed citations
4.
5.
Koyama, Soichiro, et al.. (2022). The effect of differences in powered wheelchair joystick shape on subjective and objective operability. Applied Ergonomics. 107. 103920–103920. 8 indexed citations
6.
Koyama, Soichiro, Kazuya Takeda, Hiroaki Sakurai, et al.. (2021). Short-term effect and its retention of LSVT® BIG on QOL improvement: 1-year follow-up in a patient with Parkinson’s disease. Neurorehabilitation. 49(3). 501–509. 2 indexed citations
7.
Takeda, Kazuya, Soichiro Koyama, Keisuke Morishima, et al.. (2021). The relationship between upper limb function and activities of daily living without the effects of lower limb function: A cross-sectional study. British Journal of Occupational Therapy. 85(5). 360–366. 3 indexed citations
8.
Koyama, Soichiro, Shigeo Tanabe, Yohei Otaka, et al.. (2020). Novel lateral transfer assist robot decreases the difficulty of transfer in post-stroke hemiparesis patients: a pilot study. Disability and Rehabilitation Assistive Technology. 17(7). 828–832. 5 indexed citations
9.
Hirano, Satoshi, et al.. (2019). Gait reconstruction using the gait assist robot WPAL in patients with cervical spinal cord injury. 10(0). 88–95. 5 indexed citations
10.
Saitoh, Eiichi, Shigeo Tanabe, Soichiro Koyama, et al.. (2019). Lateral Transfer Assist Robot (LTAR): Development of a proof-of-concept prototype. Technology and Health Care. 28(2). 175–183. 3 indexed citations
11.
Kanada, Yoshikiyo, et al.. (2018). Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine. SHILAP Revista de lepidopterología. 1 indexed citations
12.
Tanabe, Shigeo, Soichiro Koyama, Eiichi Saitoh, et al.. (2017). Spatiotemporal treadmill gait measurements using a laser range scanner: feasibility study of the healthy young adults. Physiological Measurement. 38(4). N81–N92. 5 indexed citations
13.
Koyama, Soichiro, et al.. (2017). Polarity-independent effects of transcranial direct current stimulation over the bilateral opercular somatosensory region. Neuroreport. 28(13). 838–844. 6 indexed citations
14.
Kondo, Izumi, Masahiko Mukaino, Shigeo Tanabe, et al.. (2017). Reliability and validity of a force-instrumented treadmill for evaluating balance: A preliminary study of feasibility in healthy young adults. Hong Kong Physiotherapy Journal. 36. 49–56. 3 indexed citations
15.
Laakso, Ilkka, Satoshi Tanaka, Marko Mikkonen, et al.. (2016). Electric fields of motor and frontal tDCS in a standard brain space: A computer simulation study. NeuroImage. 137. 140–151. 99 indexed citations
16.
Koyama, Soichiro, Shigeo Tanabe, Eiichi Saitoh, et al.. (2015). Characterization of unexpected postural changes during robot-assisted gait training in paraplegic patients. Spinal Cord. 54(2). 120–125. 9 indexed citations
17.
Koyama, Soichiro, Shigeo Tanabe, Tomoaki Kaneko, et al.. (2014). NMES with rTMS for moderate to severe dysfunction after stroke. Neurorehabilitation. 35(3). 363–368. 16 indexed citations
18.
Koyama, Soichiro, Shigeo Tanabe, Kazuya Takeda, et al.. (2012). The Effects of High-Frequency Transcranial Magnetic Stimulation Combined with Transcutaneous Electrical Stimulation in a Severe Stroke Patient. SHILAP Revista de lepidopterología. 2(4). e89–e89. 1 indexed citations
19.
Kushida, K., et al.. (1997). Effect of thyroid hormone on bone and mineral metabolism in rat: Evaluation by biochemical markers. Endocrine Research. 23(3). 167–180. 5 indexed citations
20.
Matsuura, Hiroshi, et al.. (1982). [Effects of alpha-and beta-adrenoceptor blocking agent (YM-09538) upon the clinical features of a patient with pheochromocytoma].. PubMed. 30(12). 1439–46. 2 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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