Non-Restrictive Measurement of Swallowing Frequency Using a Throat Microphone

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  • Tsujimura Hajime
    Graduate School of Bio Medical Engineering, Osaka Electro-Communication University Institution of nursing care for seniors Care Center Gamouno
  • Okazaki Hiroya
    Graduate School of Bio Medical Engineering, Osaka Electro-Communication University
  • Yamashita Mitsumi
    Osaka Isen of Medical Care and Welfare
  • Doi Hideaki
    Faculty of Bio Medical Engineering, Osaka Electro-Communication University
  • Matsumura Masafumi
    Graduate School of Bio Medical Engineering, Osaka Electro-Communication University Faculty of Bio Medical Engineering, Osaka Electro-Communication University

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  • 口腔咽喉音分析による嚥下回数の無拘束計測
  • コウクウ インコウオン ブンセキ ニ ヨル エンカ カイスウ ノ ムコウソク ケイソク

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Abstract

Disuse atrophy of various organs related to swallowing functions is one of the causes of swallowing disorders. In the present study, a system to measure swallowing frequency in a nonrestrictive manner over a long period of time was developed. In the present method, a throat microphone is attached to the neck region to record oral sounds. The reliability of the method is confirmed by recognizing 86% of swallowing sounds. Since the interval of swallowing in a complete rest is getting longer according to aging, the swallowing function is possibly getting weaker.

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