{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,18]],"date-time":"2026-07-18T06:46:46Z","timestamp":1784357206435,"version":"3.55.0"},"reference-count":28,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,6,13]],"date-time":"2017-06-13T00:00:00Z","timestamp":1497312000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2017,11]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To quantify the effects of 2 swallowing maneuvers used in dysphagia rehabilitation\u2014the Mendelsohn maneuver and effortful swallowing\u2014on pharyngoesophageal function with novel, objective pressure\u2010flow analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Evaluation of intervention effects in a healthy control cohort.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>A pharyngoesophageal motility research laboratory in a tertiary education facility.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects<\/jats:title><jats:p>Twelve young healthy subjects (9 women, 28.6 \u00b1 7.9 years) from the general public, without swallowing impairment, volunteered to participate in this study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Surface electromyography from the floor\u2010of\u2010mouth musculature and high\u2010resolution impedance manometry\u2013based pressure flow analysis were used to assess floor\u2010of\u2010mouth activation and pharyngoesophageal motility, respectively. Subjects each performed 10\u00a0noneffortful control swallows, Mendelsohn maneuver swallows, and effortful swallows, with a 5\u2010mL viscous bolus. Repeated measures analyses of variance was used to compare outcome measures across conditions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Effortful and Mendelsohn swallows generated greater floor\u2010of\u2010mouth contraction (<jats:italic>P<\/jats:italic> =. 001) and pharyngeal pressure (<jats:italic>P<\/jats:italic> &lt;. 0001) when compared with control swallows. There were no changes at the level of the upper esophageal sphincter, except for a faster opening to maximal diameter during maneuver swallows (<jats:italic>P<\/jats:italic> =. 01). The proximal esophageal contractile integral was reduced during Mendelsohn swallows (<jats:italic>P<\/jats:italic> =. 001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Effortful and Mendelsohn maneuver swallows significantly alter the pharyngoesophageal pressure profile. Faster opening of the upper esophageal sphincter may facilitate bolus transfer during maneuver swallows; however, reduced proximal esophageal contractility during Mendelsohn maneuver swallows may impair bolus flow and aggravate dysphagic symptoms.<\/jats:p><\/jats:sec>","DOI":"10.1177\/0194599817708173","type":"journal-article","created":{"date-parts":[[2017,6,13]],"date-time":"2017-06-13T11:06:26Z","timestamp":1497351986000},"page":"816-823","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":61,"title":["Biomechanical Quantification of Mendelsohn Maneuver and Effortful Swallowing on Pharyngoesophageal Function"],"prefix":"10.1002","volume":"157","author":[{"given":"Sebastian Heinrich","family":"Doeltgen","sequence":"first","affiliation":[{"name":"Department of Speech Pathology School of Health Sciences Flinders University Bedford Park 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