Impact the food ingestion on swallowing

• Project/Area Number: 25870249
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthodontics/ Dental materials science and; Social dentistry
• Research Institution: Niigata University
• Principal Investigator: HAYASHI Hirokazu 新潟大学, 医歯学総合病院, 医員 (80632439)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 舌圧 / 嚥下 / 咀嚼 / 押しつぶし / 食品 / 介護食 / 嚥下障害 / 舌 / 物性

Outline of Final Research Achievements

The purpose of the present study was to investigate the relation between the texture of gels and tongue movement. The subjects were instructed to ingest 5 ml of gel agents with mastication or with tongue squeezing. For test sample, we prepared two kind of gel agents in three different levels of consistency. In the result, it was revealed that tongue modulated duration and magnitude of contact pressure against hard palate where the duration and maximal magnitude of tongue pressure increased as the initial consistency of jellies increased. Although swallowing pressure was modulated by the initial consistency of jellies in Squeezing, it was kept constant irrespective with the consistency in Mastication. Our results suggested that the initial consistency of gels and oral strategy influences on the modulation of tongue-palate contact.

Research Products

• [Journal Article] Comparison of mechanical analysis and tongue pressure analyses during squeezing and swallowing of gels Food Hydrocolloids (2015)
  • Author(s): Ｈori K, Hayashi H, Yokoyama S, Ono T, Ishihara S, Magara J, Taniguchi H, Funami T, Maeda Y, Inoue M
  • Journal Title: Food Hydrocolloids Volume: 44 Pages: 145-155
  • Peer Reviewed
• [Journal Article] 嚥下時における舌骨の運動様相と食塊移送の検討 (2014)
  • Author(s): 真柄 仁，林 宏和，神田知佳，堀 一浩，谷口裕重，小野和宏，井上 誠
  • Journal Title: 日顎口腔機能会誌 Volume: 20 Pages: 22-32
  • NAID: 130005061733
  • Peer Reviewed
• [Journal Article] Biomechanics of human tongue movement during bolus compression and swallowing (2013)
  • Author(s): Hayashi H, Hori K, Taniguchi H, Nakamura Y, Tsujimura T, Ono T, Inoue M
  • Journal Title: J Oral Sci Volume: 55 Pages: 191-8
  • NAID: 130003366673
  • Peer Reviewed
• [Journal Article] Development of a system to monitor laryngeal movement during swallowing using a bend sensor. (2013)
  • Author(s): Li, Q., Hori, K., Minagi, Y., Ono, T., Chen, Y-J., Kondo, J., Fujiwara, S., Tamine, K., Hayashi, H., Inoue, M., Maeda, Y.
  • Journal Title: PLoS One Volume: 8 Issue: 8 Pages: e70850-e70850
  • DOI: 10.1371/journal.pone.0070850
  • Peer Reviewed
• [Journal Article] Role of tongue pressure production in oropharyngeal swallow biomechanics (2013)
  • Author(s): Hori K, Taniguchi H, Hayashi H, Magara J, Minagi Y, Li Q, Ono T, Inoue M
  • Journal Title: Physiol Rep Volume: 1 Issue: 6 Pages: e00167-e00167
  • DOI: 10.1002/phy2.167
  • Peer Reviewed
• [Journal Article] How do tablet properties influence swallowing behaviors? (2013)
  • Author(s): 5) Yamamoto S, Taniguchi H, Hayashi H, Hori K, Tsujimura T, Nakamura Y, Sato H, Inoue M
  • Journal Title: J Pharm Pharmacol Volume: 66 Issue: 1 Pages: 32-9
  • DOI: 10.1111/jphp.12155
  • Peer Reviewed
• [Presentation] Videofluoroscopic evaluation of Esophageal Clearance in Normal Adults (2014)
  • Author(s): Taniguchi H, Magara J, Hayashi H, Tsujimura T, Hori K, Inoue M
  • Organizer: Dysphagia Research Society 22th Annual Meeting
  • Place of Presentation: Nashville, the United States of America
• [Presentation] Relationship between hyoid movement and swallowing function during voluntary swallowing in dysphagic patients (2013)
  • Author(s): Magara J, Hayashi h, Kanda C, Hori K, Taniguchi H, Ono K, Inoue M
  • Organizer: 3rd Congress of the European Society for Swallowing Disorders
  • Place of Presentation: malm&ouml, Kingdom of Sweden
• [Presentation] 米飯ならびに餅食品摂取の生理学を生体記録と物性変化から追及する (2013)
  • Author(s): 井口寛子、林 宏和、谷口裕重、伊藤加代子、会田生也、別府 茂、井上 誠
  • Organizer: 第19回日本摂食・嚥下リハビリテーション学会学術大会
  • Place of Presentation: 倉敷
• [Presentation] 摂食に関連した咽頭と食道機能の加齢変化とその関係 (2013)
  • Author(s): 谷口裕重，真柄 仁，林 宏和，辻 光順，酒井翔梧，堀 一浩，井上 誠
  • Organizer: 第51回顎口腔機能学会
  • Place of Presentation: 新潟
• [Presentation] 舌接触補助床の装着による嚥下機能改善効果の検討 (2013)
  • Author(s): 真柄 仁，堀 一浩，林 宏和，井上 誠
  • Organizer: 第30回日本顎顔面補綴学会
  • Place of Presentation: 郡山