Respiratory pattern on mastication and swallowing

概要

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This experiment was conducted to measure respiratory arrest and resumption on mastication and swallowing, analyze respiratory patterns, and clarify respiratory kinetics. The subjects were 8 adult males. The nasal respiratory kinetics were measured using a differential pressure pneumotachograph. with the flow rate used as a parameter. Laryngeal movement was measured using an acceleration pick-up. Cooked rice (12g or 24g) was used as the test food. Test movements consisted of free mastication and swallowing. For this experiment, the subjects were placed in a vertical sitting position. The respiratory kinetics and laryngeal movement waveforms were simultaneously recorded using a data recorder, and analyzed. We found that the respiratory pattern on mastication and swallowing was expiration-swallowing-expiration in 81.2% of the subjects. There was no significant difference in the respiratory pattern on mastication and swallowing between the two swallowing volumes (12g and 24g). There was also no significant difference in the respiratory pattern between insertion and terminal swallowing. The results of this experiment showed that the respiratory pattern on swallowing differed between interposed and masticatory swallowing. The results also suggest that, even on masticatory swallowing, different foods influence the respiratory pattern.
大阪歯科学会の論文