The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy

Nagano, Shinnosuke; Momose, Kota; Ishii, Yuji; Yamaguchi, Shuhei; Sasaki, Motoki; Komukai, Sho; Yamashita, Kotaro; Saito, Takuro; Tanaka, Koji; Makino, Tomoki; Takahashi, Tsuyoshi; Kurokawa, Yukinori; Eguchi, Hidetoshi; Doki, Yuichiro; Nakajima, Kiyokazu

doi:https://doi.org/10.1111/den.70078

The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy

Nagano, Shinnosuke; Momose, Kota; Ishii, Yuji et al.

Digestive Endoscopy, 2025, 38(1), e70078

Number of Access:315（2026-06-02 04:51 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/103707

Link to primary information

File	Format	Terms of use	Size	Views	Date.Available	Description	information
DigEndosc_38_1_e70078	pdf	None	1.03 MB	80	2026.02.06

Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title	The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy
Creator	ORCID 0009-0007-9127-3184 0009-0007-9127-3184 Scopus Author ID 57220174489 57220174489 CreatorName Nagano, Shinnosuke
	NRID 1000050749752 1000050749752 ORCID 0009-0004-2623-2122 0009-0004-2623-2122 researchmap permalink kom2005 kom2005 Scopus Author ID 59711925000 59711925000 CreatorName Momose, Kota
	CreatorName Ishii, Yuji
	CreatorName Yamaguchi, Shuhei
	CreatorName Sasaki, Motoki
	NRID 1000070794543 1000070794543 CreatorName Komukai, Sho
	NRID 1000020747159 1000020747159 researchmap permalink k-yamashita k-yamashita Scopus Author ID 57191498316 57191498316 CreatorName Yamashita, Kotaro
	NRID 1000020646468 1000020646468 ORCID 0000-0002-1733-5064 0000-0002-1733-5064 researchmap permalink tsaito19 tsaito19 Scopus Author ID 57211629912 57211629912 CreatorName Saito, Takuro
	NRID 1000070621019 1000070621019 ORCID 0000-0001-5178-9388 0000-0001-5178-9388 researchmap permalink koji_tanaka koji_tanaka Scopus Author ID 55628548952 55628548952 CreatorName Tanaka, Koji
	NRID 1000080528620 1000080528620 ORCID 0000-0001-7918-4217 0000-0001-7918-4217 researchmap permalink _-_-_- _-_-_- Scopus Author ID 56339970700 56339970700 CreatorName Makino, Tomoki
	NRID 1000050452389 1000050452389 ORCID 0000-0003-2397-1478 0000-0003-2397-1478 researchmap permalink mihogaoka13611 mihogaoka13611 Scopus Author ID 56182761100 56182761100 CreatorName Takahashi, Tsuyoshi
	NRID 1000010470197 1000010470197 ORCID 0000-0002-2883-0132 0000-0002-2883-0132 researchmap permalink krkw krkw Scopus Author ID 7202562410 7202562410 CreatorName Kurokawa, Yukinori
	NRID 1000090542118 1000090542118 ORCID 0000-0002-2318-1129 0000-0002-2318-1129 researchmap permalink abcdabcdabcd abcdabcdabcd Scopus Author ID 7101627772 7101627772 CreatorName Eguchi, Hidetoshi
	NRID 1000020291445 1000020291445 researchmap permalink ydoki3251 ydoki3251 Scopus Author ID 7006390687 7006390687 CreatorName Doki, Yuichiro
	NRID 1000030432537 1000030432537 ORCID 0000-0001-8635-7585 0000-0001-8635-7585 researchmap permalink project_engine project_engine Scopus Author ID 7404396263 7404396263 CreatorName Nakajima, Kiyokazu
Subject	endoscopic submucosal dissection
	ergonomics of endoscopy
	esophagogastroduodenoscopy
	motion capture analysis
	muscle activation
Description	Nagano S., Momose K., Ishii Y., et al. The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy. Digestive Endoscopy 38, e70078 (2026); https://doi.org/10.1111/den.70078.
Abstract	Objectives: There have been little quantitative studies of ergonomics in the upper gastrointestinal endoscopy. We aimed to identify the ergonomic characteristics of both diagnostic (esophagogastroduodenoscopy; EGD) and therapeutic (endoscopic submucosal dissection; ESD) endoscopy in terms of the movement range of the endoscopist's hand/arm holding the endoscope and muscle activity during procedures, in a preclinical setting. Methods: (1) Optical reflective markers attached to the standard flexible endoscope were traced using a multiple motion capture system during EGD and ESD. The data were processed to generate three-dimensional XYZ coordinate data for each procedure. (2) Wireless electromyogram electrodes were attached to eight muscles in the left hand, forearm, shoulder, neck and back. Muscle activation during EGD and ESD was assessed as % maximal voluntary contraction (%MVC). Results: (1) The motion capture was performed during 13 EGDs and 12 ESDs. On all XYZ axes, the movement range of the endoscope was significantly smaller during ESD than EGD (X; p < 0.001, Y; p = 0.015, Z; p < 0.001). (2) The EMG was recorded during 15 EGDs and eight ESDs. The higher mean %MVC of the pronator teres muscle (52.1%) and the extensor carpi radialis muscle (39.3%) was observed during all procedures. The %MVC tended to be higher during ESD (34.1%) than EGD (28.9%) in an analysis including all muscles (p = 0.078). Conclusions: Our study is the first to show therapeutic endoscopy had the smaller movement range of the endoscope, but the larger muscle activity than diagnostic endoscopy. These data could deepen our ergonomic understanding of endoscopy and help to optimize endoscopic techniques and/or relevant working environment.
Publisher	John Wiley and Sons Inc
Source Title	Digestive Endoscopy
Volume (Issue)	38(1)
Page	e70078
Date of Issued	2025-12-29
Language	English
Handle URL	https://hdl.handle.net/11094/103707
PISSN	09155635
eISSN	14431661
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1111/den.70078
Access Rights	open access
CopyRight	This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Digestive Endoscopy. 2025, 38(1), p. e70078
DC.title	The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy
DC.creator	Nagano, Shinnosuke
	Momose, Kota
	Ishii, Yuji
	Yamaguchi, Shuhei
	Sasaki, Motoki
	Komukai, Sho
	Yamashita, Kotaro
	Saito, Takuro
	Tanaka, Koji
	Makino, Tomoki
	Takahashi, Tsuyoshi
	Kurokawa, Yukinori
	Eguchi, Hidetoshi
	Doki, Yuichiro
	Nakajima, Kiyokazu
DC.publisher	John Wiley and Sons Inc
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-12-29
DC.identifier	https://doi.org/10.1111/den.70078
DC.subject	endoscopic submucosal dissection
	ergonomics of endoscopy
	esophagogastroduodenoscopy
	motion capture analysis
	muscle activation
DC.description	Nagano S., Momose K., Ishii Y., et al. The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy. Digestive Endoscopy 38, e70078 (2026); https://doi.org/10.1111/den.70078.
DCTERMS.abstract	Objectives: There have been little quantitative studies of ergonomics in the upper gastrointestinal endoscopy. We aimed to identify the ergonomic characteristics of both diagnostic (esophagogastroduodenoscopy; EGD) and therapeutic (endoscopic submucosal dissection; ESD) endoscopy in terms of the movement range of the endoscopist's hand/arm holding the endoscope and muscle activity during procedures, in a preclinical setting. Methods: (1) Optical reflective markers attached to the standard flexible endoscope were traced using a multiple motion capture system during EGD and ESD. The data were processed to generate three-dimensional XYZ coordinate data for each procedure. (2) Wireless electromyogram electrodes were attached to eight muscles in the left hand, forearm, shoulder, neck and back. Muscle activation during EGD and ESD was assessed as % maximal voluntary contraction (%MVC). Results: (1) The motion capture was performed during 13 EGDs and 12 ESDs. On all XYZ axes, the movement range of the endoscope was significantly smaller during ESD than EGD (X; p < 0.001, Y; p = 0.015, Z; p < 0.001). (2) The EMG was recorded during 15 EGDs and eight ESDs. The higher mean %MVC of the pronator teres muscle (52.1%) and the extensor carpi radialis muscle (39.3%) was observed during all procedures. The %MVC tended to be higher during ESD (34.1%) than EGD (28.9%) in an analysis including all muscles (p = 0.078). Conclusions: Our study is the first to show therapeutic endoscopy had the smaller movement range of the endoscope, but the larger muscle activity than diagnostic endoscopy. These data could deepen our ergonomic understanding of endoscopy and help to optimize endoscopic techniques and/or relevant working environment.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	103707
citation_title	The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy
citation_author	Nagano, Shinnosuke
	Momose, Kota
	Ishii, Yuji
	Yamaguchi, Shuhei
	Sasaki, Motoki
	Komukai, Sho
	Yamashita, Kotaro
	Saito, Takuro
	Tanaka, Koji
	Makino, Tomoki
	Takahashi, Tsuyoshi
	Kurokawa, Yukinori
	Eguchi, Hidetoshi
	Doki, Yuichiro
	Nakajima, Kiyokazu
citation_publisher	John Wiley and Sons Inc
citation_language	English
citation_date	2025-12-29
citation_journal_title	Digestive Endoscopy
citation_volume	38
citation_issue	1
citation_firstpage	e70078
citation_doi	https://doi.org/10.1111/den.70078
citation_public_url	https://hdl.handle.net/11094/103707

The Ergonomic Comparison of Endoscopist's Hand/Arm Movement and Relevant Muscle Load Between the Diagnostic and Therapeutic Upper Gastrointestinal Endoscopy

Link to primary information

Item Information

Show details