Modification of Masticatory Rhythmicity Leading to the Initiation of the Swallowing Reflex in Humans
Modification of movements by proprioceptive feedback during mastication has an important role in shifting from the oral to the pharyngeal phase of swallowing. The aim of this study was to investigate the kinetics of masticatory muscles throughout a sequence of oropharyngeal swallowing and to present...
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| Veröffentlicht in: | Dysphagia 2018-06, Vol.33 (3), p.358-368 |
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| creator | Yoneda, Masaki Saitoh, Kazuya |
| description | Modification of movements by proprioceptive feedback during mastication has an important role in shifting from the oral to the pharyngeal phase of swallowing. The aim of this study was to investigate the kinetics of masticatory muscles throughout a sequence of oropharyngeal swallowing and to present a hypothetical model of the involvement of the nervous system in the transition from mastication to the swallowing reflex. Surface electromyographic signals were recorded from the jaw-closing masseter muscles and the jaw-opening suprahyoid muscle group when a piece of bread (3–5 g) was ingested. Participants were not provided any additional instruction regarding how to chew and swallow. In the final stage of mastication, compared with other stages of mastication, the duration between sequential peak times of rhythmic activity of the masseter muscles was prolonged. Electromyography revealed no significant change in the suprahyoid muscle group. Accordingly, contraction of the jaw-closing muscles and the jaw-opening muscles altered from out-of-phase to in-phase. We have presented a hypothetical model based on the results of the present study, in which mastication shifts to the swallowing reflex when feed-forward inputs from rhythm generators for the jaw-closing and the jaw-opening muscles converge onto an assumed “convertor” neuron group concurrently. This model should contribute to understanding the pathophysiology of dysphagia. |
| doi_str_mv | 10.1007/s00455-017-9860-9 |
| format | Article |
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The aim of this study was to investigate the kinetics of masticatory muscles throughout a sequence of oropharyngeal swallowing and to present a hypothetical model of the involvement of the nervous system in the transition from mastication to the swallowing reflex. Surface electromyographic signals were recorded from the jaw-closing masseter muscles and the jaw-opening suprahyoid muscle group when a piece of bread (3–5 g) was ingested. Participants were not provided any additional instruction regarding how to chew and swallow. In the final stage of mastication, compared with other stages of mastication, the duration between sequential peak times of rhythmic activity of the masseter muscles was prolonged. Electromyography revealed no significant change in the suprahyoid muscle group. Accordingly, contraction of the jaw-closing muscles and the jaw-opening muscles altered from out-of-phase to in-phase. We have presented a hypothetical model based on the results of the present study, in which mastication shifts to the swallowing reflex when feed-forward inputs from rhythm generators for the jaw-closing and the jaw-opening muscles converge onto an assumed “convertor” neuron group concurrently. 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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c505t-e754b687484493b077bd37155426b9e417a9b98d4c3040be7612c219270bcc693</citedby><cites>FETCH-LOGICAL-c505t-e754b687484493b077bd37155426b9e417a9b98d4c3040be7612c219270bcc693</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00455-017-9860-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00455-017-9860-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29098397$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yoneda, Masaki</creatorcontrib><creatorcontrib>Saitoh, Kazuya</creatorcontrib><title>Modification of Masticatory Rhythmicity Leading to the Initiation of the Swallowing Reflex in Humans</title><title>Dysphagia</title><addtitle>Dysphagia</addtitle><addtitle>Dysphagia</addtitle><description>Modification of movements by proprioceptive feedback during mastication has an important role in shifting from the oral to the pharyngeal phase of swallowing. The aim of this study was to investigate the kinetics of masticatory muscles throughout a sequence of oropharyngeal swallowing and to present a hypothetical model of the involvement of the nervous system in the transition from mastication to the swallowing reflex. Surface electromyographic signals were recorded from the jaw-closing masseter muscles and the jaw-opening suprahyoid muscle group when a piece of bread (3–5 g) was ingested. Participants were not provided any additional instruction regarding how to chew and swallow. In the final stage of mastication, compared with other stages of mastication, the duration between sequential peak times of rhythmic activity of the masseter muscles was prolonged. Electromyography revealed no significant change in the suprahyoid muscle group. Accordingly, contraction of the jaw-closing muscles and the jaw-opening muscles altered from out-of-phase to in-phase. We have presented a hypothetical model based on the results of the present study, in which mastication shifts to the swallowing reflex when feed-forward inputs from rhythm generators for the jaw-closing and the jaw-opening muscles converge onto an assumed “convertor” neuron group concurrently. This model should contribute to understanding the pathophysiology of dysphagia.</description><subject>Adult</subject><subject>Contraction</subject><subject>Deglutition - physiology</subject><subject>Deglutition disorders</subject><subject>Dysphagia</subject><subject>Electromyography</subject><subject>Female</subject><subject>Gastroenterology</subject><subject>Health aspects</subject><subject>Hepatology</subject><subject>Humans</subject><subject>Imaging</subject><subject>Jaw</subject><subject>Jaws</subject><subject>Male</subject><subject>Mastication</subject><subject>Mastication - physiology</subject><subject>Masticatory Muscles - physiology</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Methods</subject><subject>Motor ability</subject><subject>Muscle contraction</subject><subject>Nervous system</subject><subject>Original Article</subject><subject>Otorhinolaryngology</subject><subject>Pharynx</subject><subject>Physiological aspects</subject><subject>Proprioception</subject><subject>Radiology</subject><subject>Reflex</subject><subject>Reflexes</subject><subject>Rhythms</subject><subject>Risk factors</subject><subject>Swallowing</subject><subject>Throat</subject><subject>Young Adult</subject><issn>0179-051X</issn><issn>1432-0460</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><recordid>eNp1kV9rFDEUxYModq1-AF9kwJe-TL3J5O9jKdYWtgitgm8hk8nspswkdZKh7rc3464VxZKHkHt_53BzD0JvMZxiAPEhAVDGasCiVpJDrZ6hFaYNqYFyeI5WpaFqYPjbEXqV0h0AJoo3L9ERUaBko8QKddex8723JvsYqthX1ybl5RmnXXWz3eXt6K3Pu2rtTOfDpsqxyltXXQWf_aNoqdw-mGGIDwtz4_rB_ah8qC7n0YT0Gr3ozZDcm8N9jL5efPxyflmvP3-6Oj9b15YBy7UTjLZcCiopVU0LQrRdIzBjlPBWOYqFUa2SHbUNUGid4JhYghUR0FrLVXOMTva-91P8PruU9eiTdcNggotz0lhJSXgjJC_o-3_QuzhPoUynSTFnnNBfhgdqYwanfehjnoxdTPWZKMtkUkhWqNP_UOV0riwvBtf7Uv9LgPcCO8WUJtfr-8mPZtppDHpJVu-T1SVAvSSrl1HeHQae29F1j4rfURaA7IFUWmHjpj8_etr1Jz8Pq2c</recordid><startdate>20180601</startdate><enddate>20180601</enddate><creator>Yoneda, Masaki</creator><creator>Saitoh, Kazuya</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7TK</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>20180601</creationdate><title>Modification of Masticatory Rhythmicity Leading to the Initiation of the Swallowing Reflex in Humans</title><author>Yoneda, Masaki ; Saitoh, Kazuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c505t-e754b687484493b077bd37155426b9e417a9b98d4c3040be7612c219270bcc693</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adult</topic><topic>Contraction</topic><topic>Deglutition - physiology</topic><topic>Deglutition disorders</topic><topic>Dysphagia</topic><topic>Electromyography</topic><topic>Female</topic><topic>Gastroenterology</topic><topic>Health aspects</topic><topic>Hepatology</topic><topic>Humans</topic><topic>Imaging</topic><topic>Jaw</topic><topic>Jaws</topic><topic>Male</topic><topic>Mastication</topic><topic>Mastication - physiology</topic><topic>Masticatory Muscles - physiology</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Methods</topic><topic>Motor ability</topic><topic>Muscle contraction</topic><topic>Nervous system</topic><topic>Original Article</topic><topic>Otorhinolaryngology</topic><topic>Pharynx</topic><topic>Physiological aspects</topic><topic>Proprioception</topic><topic>Radiology</topic><topic>Reflex</topic><topic>Reflexes</topic><topic>Rhythms</topic><topic>Risk factors</topic><topic>Swallowing</topic><topic>Throat</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yoneda, Masaki</creatorcontrib><creatorcontrib>Saitoh, Kazuya</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing & Allied Health Database</collection><collection>Neurosciences Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing & Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>Dysphagia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yoneda, Masaki</au><au>Saitoh, Kazuya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modification of Masticatory Rhythmicity Leading to the Initiation of the Swallowing Reflex in Humans</atitle><jtitle>Dysphagia</jtitle><stitle>Dysphagia</stitle><addtitle>Dysphagia</addtitle><date>2018-06-01</date><risdate>2018</risdate><volume>33</volume><issue>3</issue><spage>358</spage><epage>368</epage><pages>358-368</pages><issn>0179-051X</issn><eissn>1432-0460</eissn><abstract>Modification of movements by proprioceptive feedback during mastication has an important role in shifting from the oral to the pharyngeal phase of swallowing. The aim of this study was to investigate the kinetics of masticatory muscles throughout a sequence of oropharyngeal swallowing and to present a hypothetical model of the involvement of the nervous system in the transition from mastication to the swallowing reflex. Surface electromyographic signals were recorded from the jaw-closing masseter muscles and the jaw-opening suprahyoid muscle group when a piece of bread (3–5 g) was ingested. Participants were not provided any additional instruction regarding how to chew and swallow. In the final stage of mastication, compared with other stages of mastication, the duration between sequential peak times of rhythmic activity of the masseter muscles was prolonged. Electromyography revealed no significant change in the suprahyoid muscle group. Accordingly, contraction of the jaw-closing muscles and the jaw-opening muscles altered from out-of-phase to in-phase. We have presented a hypothetical model based on the results of the present study, in which mastication shifts to the swallowing reflex when feed-forward inputs from rhythm generators for the jaw-closing and the jaw-opening muscles converge onto an assumed “convertor” neuron group concurrently. This model should contribute to understanding the pathophysiology of dysphagia.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>29098397</pmid><doi>10.1007/s00455-017-9860-9</doi><tpages>11</tpages></addata></record> |
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| ispartof | Dysphagia, 2018-06, Vol.33 (3), p.358-368 |
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| subjects | Adult Contraction Deglutition - physiology Deglutition disorders Dysphagia Electromyography Female Gastroenterology Health aspects Hepatology Humans Imaging Jaw Jaws Male Mastication Mastication - physiology Masticatory Muscles - physiology Medicine Medicine & Public Health Methods Motor ability Muscle contraction Nervous system Original Article Otorhinolaryngology Pharynx Physiological aspects Proprioception Radiology Reflex Reflexes Rhythms Risk factors Swallowing Throat Young Adult |
| title | Modification of Masticatory Rhythmicity Leading to the Initiation of the Swallowing Reflex in Humans |
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