Koji Hara

2.1k total citations
70 papers, 1.5k citations indexed

About

Koji Hara is a scholar working on Speech and Hearing, Surgery and Physiology. According to data from OpenAlex, Koji Hara has authored 70 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Speech and Hearing, 21 papers in Surgery and 19 papers in Physiology. Recurrent topics in Koji Hara's work include Dysphagia Assessment and Management (29 papers), Esophageal and GI Pathology (13 papers) and Child Nutrition and Feeding Issues (11 papers). Koji Hara is often cited by papers focused on Dysphagia Assessment and Management (29 papers), Esophageal and GI Pathology (13 papers) and Child Nutrition and Feeding Issues (11 papers). Koji Hara collaborates with scholars based in Japan, United States and China. Koji Hara's co-authors include Haruka Tohara, Ayako Nakane, Shunsuke Minakuchi, Kohei Yamaguchi, Kanako Yoshimi, Kazushi Numata, Katsuaki Tanaka, Kazuharu Nakagawa, Takayoshi Kiba and Hisahiko Sekihara and has published in prestigious journals such as Gastroenterology, PLoS ONE and Hepatology.

In The Last Decade

Koji Hara

66 papers receiving 1.5k citations

Peers

Countries citing papers authored by Koji Hara

Since Specialization

Citations

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

Fields of papers citing papers by Koji Hara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Hara

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Effects of tongue right positioner use on tongue pressure: a pilot study 2023 ·Scientific Reports ·(unknown), Koji Hara, (unknown), (unknown), (unknown), Kazuharu Nakagawa, Kohei Yamaguchi, Kanako Yoshimi, Ayako Nakane, (unknown), Haruka Tohara	3
2	Strength and morphology of a suprahyoid muscle and their relationship to forward head posture in healthy older adults 2022 ·Geriatrics and gerontology international ·(unknown), Koji Hara, Kazuharu Nakagawa, (unknown), Kohei Yamaguchi, Kanako Yoshimi, (unknown), (unknown), Ayako Nakane, (unknown), (unknown), Haruka Tohara	6
3	Association between Tongue Pressure and Jaw-Opening Force in Older Adults 2022 ·International Journal of Environmental Research and Public Health ·(unknown), Koji Hara, (unknown), Kazuharu Nakagawa, Kohei Yamaguchi, (unknown), (unknown), (unknown), Tomoko Komatsu, Haruka Tohara	6
4	Jaw‐retraction exercise increases anterior hyoid excursion during swallowing in older adults with mild dysphagia 2021 ·Gerodontology ·(unknown), Kazuharu Nakagawa, Kanako Yoshimi, Kohei Yamaguchi, Ayako Nakane, (unknown), (unknown), Koji Hara, Shunsuke Minakuchi, Haruka Tohara	5
5	Cervical Interferential Current Transcutaneous Electrical Sensory Stimulation for Patients with Dysphagia and Dementia in Nursing Homes 2021 ·Clinical Interventions in Aging ·Yoshiko Hara, Ayako Nakane, Haruka Tohara, (unknown), Kazuharu Nakagawa, Koji Hara, Kohei Yamaguchi, Kanako Yoshimi, Shunsuke Minakuchi	7
6	Factors associated with the number of microorganisms on the tongue surface in patients following acute stroke 2020 ·Journal of Oral Rehabilitation ·Junichi Furuya, (unknown), Hiroyuki Suzuki, (unknown), (unknown), (unknown), Kanako Yoshimi, Kohei Yamaguchi, Koji Hara, Kazuharu Nakagawa, Ayako Nakane, Haruka Tohara, Shunsuke Minakuchi	2
7	Association between myotonometric measurement of masseter muscle stiffness and maximum bite force in healthy elders 2020 ·Journal of Oral Rehabilitation ·Koji Hara, (unknown), Kohei Yamaguchi, (unknown), Takayuki Saito, Kazuharu Nakagawa, (unknown), (unknown), Haruka Tohara	18
8	The effect of rotator cuff physical exercise combined with electrically stimulated antagonist on shoulder rotator cuff strength 2020 ·Journal of Orthopaedic Science ·Koji Hara, Hiroo Matsuse, Ryuki Hashida, (unknown), Masafumi Bekki, (unknown), (unknown), (unknown), Yoshihiko Tagawa, Naoto Shiba	3
9	Relationship between displacement of the masseter muscle during biting and masseter muscle quality and bite force in healthy elderly persons 2019 ·Journal of Oral Rehabilitation ·Koji Hara, Haruka Tohara, (unknown), Kohei Yamaguchi, (unknown), (unknown), Takayuki Saito, Kazuharu Nakagawa, (unknown), Kanako Yoshimi, Ayako Nakane, Junichi Furuya, Shunsuke Minakuchi	7
10	Tongue thickness is associated with masticatory performance of perioral muscles: Ultrasonographic study of perioral muscle characteristics in healthy young subjects 2019 ·Journal of Oral Rehabilitation ·Kohei Yamaguchi, Haruka Tohara, Koji Hara, (unknown), Kazuharu Nakagawa, Kanako Yoshimi, Ayako Nakane, Shunsuke Minakuchi	14
11	Association between echo intensity of the tongue and its thickness and function in elderly subjects 2019 ·Journal of Oral Rehabilitation ·(unknown), Haruka Tohara, Kazuharu Nakagawa, Koji Hara, Ayako Nakane, Kohei Yamaguchi, Kanako Yoshimi, Junichi Furuya, Shunsuke Minakuchi	18
12	Factors associated with masseter muscle quality assessed from ultrasonography in community-dwelling elderly individuals: A cross-sectional study 2019 ·Archives of Gerontology and Geriatrics ·Kohei Yamaguchi, Haruka Tohara, Koji Hara, Ayako Nakane, Kanako Yoshimi, Kazuharu Nakagawa, Shunsuke Minakuchi	38
13	<p>Tongue-pressure resistance training improves tongue and suprahyoid muscle functions simultaneously</p> 2019 ·Clinical Interventions in Aging ·(unknown), Koji Hara, Haruka Tohara, (unknown), (unknown), Kazuharu Nakagawa, (unknown), Kohei Yamaguchi, Kanako Yoshimi, Ayako Nakane, Shunsuke Minakuchi	62
14	Association between tongue muscle strength and masticatory muscle strength 2018 ·Journal of Oral Rehabilitation ·Koji Hara, Haruka Tohara, (unknown), Kohei Yamaguchi, (unknown), Kanako Yoshimi, Ayako Nakane, Shunsuke Minakuchi	50
15	Future projection of the physician workforce and its geographical equity in Japan: a cohort-component model 2018 ·BMJ Open ·Koji Hara, Susumu Kunisawa, Noriko Sasaki, Yuichi Imanaka	8
16	Age-related declines in the swallowing muscle strength of men and women aged 20–89 years: A cross-sectional study on tongue pressure and jaw-opening force in 980 subjects 2018 ·Archives of Gerontology and Geriatrics ·Koji Hara, Haruka Tohara, (unknown), Kohei Yamaguchi, Kanako Yoshimi, Ayako Nakane, Shunsuke Minakuchi	53
17	Relationship of aging, skeletal muscle mass, and tooth loss with masseter muscle thickness 2018 ·BMC Geriatrics ·Kohei Yamaguchi, Haruka Tohara, Koji Hara, Ayako Nakane, (unknown), Kanako Yoshimi, Shunsuke Minakuchi	54
18	The relationship between jaw‐opening force and the cross‐sectional area of the suprahyoid muscles in healthy elderly 2017 ·Journal of Oral Rehabilitation ·(unknown), Haruka Tohara, Ayako Nakane, Yoko Wakasugi, Koji Hara, Kohei Yamaguchi, Kanako Yoshimi, Shunsuke Minakuchi	33
19	Excessive anterior cervical muscle tone affects hyoid bone kinetics during swallowing in healthy individuals 2017 ·Clinical Interventions in Aging ·Yasuhiro YAMAZAKI, Haruka Tohara, Koji Hara, Ayako Nakane, (unknown), Kohei Yamaguchi, Shunsuke Minakuchi	8
20	Existence of small slow-cycling Langerhans cells in the limbal basal epithelium that express ABCG2 2007 ·Experimental Eye Research ·Wensheng Chen, Koji Hara, (unknown), (unknown), Takeshi Yoshitomi	45

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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