Sequential coordination between lingual and pharyngeal pressures produced during dry swallowing

Jitsuro Yano, Yoichiro Aoyagi, Takahiro Ono, Kazuhiro Hori, Wakami Yamaguchi, Shigehiro Fujiwara, Isami Kumakura, Shogo Minagi, Akio Tsubahara

研究成果: ジャーナルへの寄稿学術論文査読

15 被引用数 (Scopus)

抄録

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Theaimof this study was to investigate oropharyngeal pressure flowdynamics during dry swallowing in ten healthy subjects. Tongue pressure (TP) was measured using a sensor sheet system with five measuring points on the hard palate, and pharyngeal pressure (PP) was measured using a manometric catheter with four measuring points. The order and correlations of sequential events, such as onset, peak, and offset times of pressure production, at each pressure measuring point were analyzed on the synchronized waveforms. Onset of TP was earlier than that of PP. The peak of TP did not show significant differences with the onset of PP, and it was earlier than that of PP.There was no significant difference between the offset of TP and PP.The onset of PP was temporally timelocked to the peak of TP, and there was an especially strong correlation between the onset of PP and TP at the posterior-median part on the hard palate. The offset of PP was temporally time-locked to that of TP. These results could be interpreted as providing an explanation for the generation of oropharyngeal pressure flow to ensure efficient bolus transport and safe swallowing.

本文言語英語
論文番号352
ジャーナルBioMed Research International
2014
DOI
出版ステータス出版済み - 2014

All Science Journal Classification (ASJC) codes

  • 生化学、遺伝学、分子生物学一般
  • 免疫学および微生物学一般

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