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ID 48713
本文ファイル
著者
Umayahara, Yasutaka
Soh, Zu 大学院工学研究科 広大研究者総覧
Sekikawa, Kiyokazu 大学院医歯薬保健学研究院 広大研究者総覧
Kawae, Toshihiro
Otsuka, Akira
Tsuji, Toshio 大学院工学研究科 広大研究者総覧
キーワード
cough strength
cough sound
cough peak flow
mobile device
iOS
抄録(英)
Although cough peak flow (CPF) is an important measurement for evaluating the risk of cough dysfunction, some patients cannot use conventional measurement instruments, such as spirometers, because of the configurational burden of the instruments. Therefore, we previously developed a cough strength estimation method using cough sounds based on a simple acoustic and aerodynamic model. However, the previous model did not consider age or have a user interface for practical application. This study clarifies the cough strength prediction accuracy using an improved model in young and elderly participants. Additionally, a user interface for mobile devices was developed to record cough sounds and estimate cough strength using the proposed method. We then performed experiments on 33 young participants (21.3 ± 0.4 years) and 25 elderly participants (80.4 ± 6.1 years) to test the effect of age on the CPF estimation accuracy. The percentage error between the measured and estimated CPFs was approximately 6.19%. In addition, among the elderly participants, the current model improved the estimation accuracy of the previous model by a percentage error of approximately 6.5% (p < 0.001). Furthermore, Bland-Altman analysis demonstrated no systematic error between the measured and estimated CPFs. These results suggest that the developed device can be applied for daily CPF measurements in clinical practice.
内容記述
This work was supported by JSPS KAKENHI, grant number 16K16475.
掲載誌名
Sensors
18巻
11号
開始ページ
3810
出版年月日
2018-11-07
出版者
MDPI
ISSN
1424-8220
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
関連情報URL
部局名
工学研究科
医歯薬保健学研究科