{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T05:04:22Z","timestamp":1780031062742,"version":"3.53.1"},"reference-count":24,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T00:00:00Z","timestamp":1750377600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T00:00:00Z","timestamp":1750377600000},"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":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>A noninvasive laryngeal motion evaluation device using photoelectric distance sensors (Nodomiru) has been newly developed and reported to be useful in evaluating swallowing dynamics. This device can easily obtain a laryngeal movement velocity curve and a laryngeal movement position curve. In this study, we aimed to examine how liquid viscosity affects the swallowing dynamics after verifying the usefulness of data smoothing in this measurement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This study included 33 healthy adults (mean age: 28.8\u2009\u00b1\u20099.7\u2009years). They were instructed to swallow saliva and 3\u2009mL of thin and medium\u2010thickened liquids three times each in a sitting position. Laryngeal movements during these trials were evaluated using Nodomiru. The comma\u2010separated value data output, which included laryngeal position and time information obtained from Nodomiru, were used to calculate the following parameters: laryngeal elevation time, elevation distance, velocity and laryngeal elevation persistence time with and without smoothing.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The intraclass correlation coefficient values of elevation peak velocity for the three swallowing trials of liquids were higher with smoothing (0.77) than without smoothing (0.54). Elevation peak velocities were 128.9\u2009\u00b1\u200956.8, 149.8\u2009\u00b1\u200947.2, and 173.5\u2009\u00b1\u200962.7\u2009mm\/s for saliva, thin liquid (water), and moderately thick liquid, respectively, demonstrating significant differences.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Using a smoothing procedure is beneficial for analysing the swallowing dynamics with Nodomiru. Furthermore, increasing liquid thickness promoted increased laryngeal movement velocity in healthy adults.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/joor.70009","type":"journal-article","created":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T22:39:37Z","timestamp":1750459177000},"page":"1965-1971","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Liquid Viscosity on Swallowing Dynamics in Healthy Adults: A Study Using a New Noninvasive Laryngeal Motion Evaluation Instrument"],"prefix":"10.1111","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-8492-3798","authenticated-orcid":false,"given":"Yuta","family":"Nakao","sequence":"first","affiliation":[{"name":"Department of Faculty of Allied Health Sciences Yamato University  Osaka Japan"},{"name":"Department of Rehabilitation Kurashiki Central Hospital  Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoyuki","family":"Haji","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology Head and Neck Surgery Kurashiki Central Hospital  Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,6,20]]},"reference":[{"key":"e_1_2_9_2_1","first-page":"287","article-title":"Dysphagia in the Elderly: Management and Nutritional Considerations","volume":"7","author":"Sura L.","year":"2012","journal-title":"Clinical Interventions in Aging"},{"issue":"5","key":"e_1_2_9_3_1","first-page":"G675","article-title":"Effect of Swallowed Bolus Variables on Oral and Pharyngeal Phases of Swallowing","volume":"258","author":"Dantas R. 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Journal of the Society of Swallowing and Dysphagia of Japan"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00455-015-9621-6"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00455-023-10638-2"},{"key":"e_1_2_9_12_1","first-page":"200","article-title":"The Evaluation of Laryngeal Movement During Swallowing Using a Laryngeal Motion Measurement System With Photoelectric Distance Sensors","volume":"67","author":"Haji T.","year":"2021","journal-title":"Otologia Fukuoka"},{"issue":"2","key":"e_1_2_9_13_1","article-title":"Validity and Reliability of a Noninvasive Device for Measuring Laryngeal Movement During Swallowing","volume":"17","author":"Omori 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