{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T14:10:11Z","timestamp":1790691011402,"version":"4.1.0"},"reference-count":25,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T00:00:00Z","timestamp":1782777600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T00:00:00Z","timestamp":1782777600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Digestive Endoscopy"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Growing endoscopy demand has increased physical workload and injury risk among endoscopists, while current ergonomic solutions remain limited. We developed a newly motion\u2010optimized endoscope\u2010holding device (scope\u2010holder) designed to reduce muscular burden, allowing each operator to adjust the scope position according to individual preference. This study assessed its ergonomic impacts in a simulated setting.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Clinical endoscopists and nonmedical participants without any medical background were recruited to collect data. Each participant performed a simulated endoscopic marking task with and without the scope\u2010holder. We compared the procedure time of the task, evaluated muscle efforts in the upper arm, forearm, and shoulder using wireless electromyography, as well as mental workload using NASA\u2010TLX across the two settings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 26 participants, including 17 clinical endoscopists and 9 nonmedical participants, were enrolled. In the overall cohort, the scope\u2010holder assisted group significantly reduced activation of biceps brachii (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), trapezius (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), flexor carpi ulnaris (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.049) muscles and NASA\u2010TLX scores (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003). Additionally, the assisted group achieved a shorter procedure time (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.018) compared with the non\u2010assisted group. Subgroup analysis showed reduced muscle load in both clinical endoscopists and nonmedical participants (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05), with additional improvements in mental workload (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.004) and the procedure time (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.027) observed only in nonmedical participants, whereas clinical endoscopists showed no significant difference in mental workload (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.299) and procedure time (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.229).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Our newly developed scope\u2010holder, designed to accommodate the operator's natural scope motion, effectively reduced physical and mental workload. It offers a practical solution to improve ergonomics in endoscopic clinical practice.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/den.70209","type":"journal-article","created":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T13:52:53Z","timestamp":1782827573000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Development and Evaluation of an Ergonomically Optimized Scope\u2010Holder for Flexible Endoscopy (With Video)"],"prefix":"10.1111","volume":"38","author":[{"given":"Shinnosuke","family":"Nagano","sequence":"first","affiliation":[{"name":"Department of Next Generation Endoscopic Intervention (Project ENGINE) The University of Osaka Graduate School of Medicine  Osaka Japan"},{"name":"Department of Gastroenterological Surgery The University of Osaka Graduate School of Medicine  Osaka 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