TY - JOUR
T1 - Sequential coordination between lingual and pharyngeal pressures produced during dry swallowing
AU - Yano, Jitsuro
AU - Aoyagi, Yoichiro
AU - Ono, Takahiro
AU - Hori, Kazuhiro
AU - Yamaguchi, Wakami
AU - Fujiwara, Shigehiro
AU - Kumakura, Isami
AU - Minagi, Shogo
AU - Tsubahara, Akio
N1 - Publisher Copyright:
© 2014 Jitsuro Yano et al.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
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U2 - 10.1155/2014/691352
DO - 10.1155/2014/691352
M3 - Article
C2 - 25580436
AN - SCOPUS:84965183553
SN - 2314-6133
VL - 2014
JO - BioMed Research International
JF - BioMed Research International
M1 - 352
ER -