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A Novel Cough Strength Evaluation Method via Cough Sounds

Research Project

Project/Area Number 16K16475
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Rehabilitation science/Welfare engineering
Research InstitutionHiroshima Cosmopolitan University

Principal Investigator

Umayahara Yasutaka  広島都市学園大学, 健康科学部, 講師(移行) (60746395)

Research Collaborator Tsuji Toshio  広島大学, 大学院・工学研究科 (90179995)
Soh Zu  広島大学, 大学院・工学研究科 (80724351)
Otsuka Akira  広島都市学園大学, 健康科学部
Sekikawa Kiyokazu  広島大学, 大学院・医歯薬保健学研究院 (30363055)
Kawae Toshihiro  東都大学, 幕張ヒューマンケア学部 (00598948)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords咳嗽力 / 咳嗽音 / 咳嗽 / マイクロフォン / モバイルディバイス / Cough Peak Flow / スマートフォン / Cough peak flow / 骨伝導マイク / 咳嗽能力 / CPF / リハビリテーション / 生体工学
Outline of Final Research Achievements

This study presented a cough strength evaluation based on cough sounds and designed for daily use in clinical practice along with a custom-designed user interface. This study found that body weight and BMI have minimal effects on the cough peak flow (CPF) estimation accuracy. The experiment results also revealed that cough strength can be evaluated in elderly people by using the proposed model and device considering the effect of age. Its effect on CPF estimation can be compensated by adding a proportional age coefficient. Toward practical application, we plan to test the efficacy of the proposed model and the user interface software implemented on a mobile device for daily use during in-home care.

Academic Significance and Societal Importance of the Research Achievements

先行研究では、70歳以上で発症した肺炎の約80%が誤嚥性肺炎(誤って気道に入った食べ物や唾液などの分泌物が原因で発症する肺炎)であったと報告されている。また、飲み込みの機能と誤って気道に侵入した異物を排出する咳の能力は関連するとされ、誤嚥性肺炎のリスク管理を行なうためには、飲み込みの機能だけではなく、咳の能力を評価することは重要とされている。 咳の能力を評価するためには、医療機関でスパイロメーターを用いて測定されるが、マスクを口にあてがうなど煩雑である。そこで、本研究にて開発した提案法を用いれは、医療機関だけではなく在宅でも簡便に咳の能力を測定することができ、誤嚥性肺炎を予防する一助となる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Estimation of Cough Peak Flow Using Cough Sounds2018

    • Author(s)
      Umayahara Yasutaka、Soh Zu、Sekikawa Kiyokazu、Kawae Toshihiro、Otsuka Akira、Tsuji Toshio
    • Journal Title

      Sensors

      Volume: 18 Issue: 7 Pages: 2381-2381

    • DOI

      10.3390/s18072381

    • NAID

      120006523404

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Mobile Cough Strength Evaluation Device Using Cough Sounds2018

    • Author(s)
      Umayahara Yasutaka、Soh Zu、Sekikawa Kiyokazu、Kawae Toshihiro、Otsuka Akira、Tsuji Toshio
    • Journal Title

      Sensors

      Volume: 18 Issue: 11 Pages: 3810-3810

    • DOI

      10.3390/s18113810

    • NAID

      120006800827

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ability to cough can be evaluated through cough sounds: An experimental investigation of effects of microphone type on accuracy2017

    • Author(s)
      Yasutaka Umayahara, Zu Soh, Tomoko Ozaki, Takafumi MUrakami, Akira Otsuka, Toshio Tsuji
    • Journal Title

      2017 IEEE/SICE International Symposium on System Integration (SII)

      Volume: SII2017 Pages: 936-941

    • DOI

      10.1109/sii.2017.8279343

    • NAID

      120006523405

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cough peak flow can be predicted via cough sounds2017

    • Author(s)
      Umayahara Y, Soh Z, Sekikawa K, Kawae K, Otsuka A. Tsuji T
    • Journal Title

      PLOS ONE

      Volume: -

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Ability to cough can be evaluated through cough sounds: An experimental investigation of effects of microphone type on accuracy2017

    • Author(s)
      Yasutaka Umayahara, Zu Soh, Tomoko Ozaki, Takafumi MUrakami, Akira Otsuka, Toshio Tsuji
    • Organizer
      2017 IEEE/SICE International Symposium on System Integration (SII)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] ピークフローメータの測定位置がCough Peak Flowの測定値に与える影響について2016

    • Author(s)
      馬屋原康高,関川清一,河江敏広,大塚彰,辻敏夫
    • Organizer
      第26回日本呼吸ケア・リハビリテーション学会
    • Place of Presentation
      神奈川県
    • Year and Date
      2016-10-10
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 咳嗽能力評価装置、咳嗽能力評価システム、咳嗽能力評価方法及びプログラム2018

    • Inventor(s)
      馬屋原 康高, 曽 智, 大塚 彰, 辻 敏夫
    • Industrial Property Rights Holder
      馬屋原 康高, 曽 智, 大塚 彰, 辻 敏夫
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 咳嗽能力評価装置、咳嗽能力評価システム、咳嗽能力評価方法及びプログラム2018

    • Inventor(s)
      馬屋原康高、曽智、大塚彰、辻敏夫
    • Industrial Property Rights Holder
      広島都市学園大学、広島大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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