Developments of human support ear monitoring system for daily life and heat illness

• Project/Area Number: 24680063
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Fukuoka Institute of Technology (2014); Kanazawa University (2012-2013)
• Principal Investigator: YAMAKOSHI Takehiro 福岡工業大学, 情報工学部, 准教授 (70444205)
• Research Collaborator: MATSUMURA Kenta ; LEE Jihyoung ; TANAKA Naoto ; KIYOHARA Daiki ; KAKIMOTO Masanori
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000); Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2013: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000); Fiscal Year 2012: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
• Keywords: 生体情報計測 / 生体情報解析 / 健康・福祉工学 / スマートセンサ情報システム / 電子デバイス・機器

Outline of Final Research Achievements

The final goal of this study was to develop a smart ear monitor for detecting heat illness and/or stress in daily life. In order to accomplish this study, First, we have developed a new methodology for detecting heat illness based on continuous tympanic thermometry in serious hot condition. Second, we have searched for the appropriate part of ear-canal to obtain cardiac beating and normalized pulse volume as a indicator of sympathetic nerve activity. Third, we have developed a new smartphone application named "iPhysioMeter: http://iphysiometer.com/app/", which can measure and easily monitor the physiological variables. These results can yield to the smart ear monitor in the near future.

Research Products

• [Journal Article] iPhone 4s photoplethysmography: Which light color yields the most accurate heart rate and normalized pulse volume using the iPhysioMeter application in the presence of motion artifact? (2014)
  • Author(s): Kenta Matsumura, Peter Rolfe, Jihyoung Lee, Takehiro Yamakoshi
  • Journal Title: PLOS ONE Volume: 9 Issue: 3 Pages: e91205-e91205
  • DOI: 10.1371/journal.pone.0091205
  • NAID: 120005435500
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Potential for health screening using long-term cardiovascular parameters measured by finger volume-oscillometry : Pilot comparative evaluation in regular and sleep-deprived activities (2014)
  • Author(s): Yamakoshi T, Matsumura K, Rolfe P. Hanaki S, Ikarashi A, Lee J. Yamakoshi K
  • Journal Title: IEEE Journal of Biomedical and Health Informatics Volume: 18 Issue: 1 Pages: 28-35
  • DOI: 10.1109/jbhi.2013.2274460
  • NAID: 120005411657
  • Peer Reviewed
• [Journal Article] A novel method to detect heat illness under severe conditions by monitoring tympanic temperature (2013)
  • Author(s): Takehiro Yamakoshi, Kenta Matsumura, Peter Rolfe, Naoto Tanaka, Yasuhiro Yamakoshi, Kiichi Takahashi
  • Journal Title: Aviation, Space, and Environmental Medicine Volume: 84 Issue: 7 Pages: 692-700
  • DOI: 10.3357/asem.3542.2013
  • Peer Reviewed
• [Journal Article] iPhysioMeter : A new approach for measuring heart rate and normalized pulse volume using only a smartphone (2013)
  • Author(s): Kenta Matsumura
  • Journal Title: Behavior Research Methods Volume: 45(in press) Issue: 4 Pages: 1272-1278
  • DOI: 10.3758/s13428-012-0312-z
  • NAID: 120005253442
  • Peer Reviewed
• [Journal Article] Validation of normalized pulse volume in the outer ear as a simple measure ofsympathetic activity using warm and coldpressor tests: towards applications in ambulatory monitoring (2013)
  • Author(s): Lee J.H., Matsumura K., Yamakoshi T., Rolfe P., Tanaka N., Kim K.H., YamakoshiK.
  • Journal Title: Physiological Measurement, Peer-reviewed Volume: 34(3) Issue: 3 Pages: 359-75
  • DOI: 10.1088/0967-3334/34/3/359
  • Peer Reviewed
• [Journal Article] A novel method to detect heat illness under severe conditions、by monitoring tympanic temperature (2013)
  • Author(s): Takehiro Yamakoshi
  • Journal Title: Aviation, Space, and Environmental Medicine Volume: 84(in press)(to be assigned)
  • Peer Reviewed
• [Presentation] 非侵襲血中成分計測を目指した積分球型高感度光電容積脈波検出法の検討 (2015)
  • Author(s): 山越康弘，松村健太，山越健弘，田中直登，李知炯，ピーター・ロルフ，清水孝一，山越憲一
  • Organizer: 第54回日本生体医工学会大会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-05-07 – 2015-05-09
• [Presentation] 非侵襲血中成分計測のための球状拡散反射面を用いた高感度光電容積脈波検出法の提案 (2014)
  • Author(s): 清原大樹, 永井孝, 李知炯, 松村健太, ピーター・ロルフ, 山越憲一, 田中直登, 山越康弘, 田中志信, 野川雅道, 山越健弘
  • Organizer: 第53回日本生体医工学会大会
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2014-06-25 – 2014-06-27
• [Presentation] Evaluation of the accuracy of the iPhysioMeter app for measuring heart rate and normalized pulse volume using only a smartphone (2013)
  • Author(s): Kenta Matsumura, Peter Rolfe, Jihyoung Lee, Takehiro Yamakoshi
  • Organizer: The 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
  • Place of Presentation: 大阪国際会議場（大阪府・吹田市）
• [Presentation] Comparison between red, green and blue light reflection photoplethysmography for heart rate monitoring during motion (2013)
  • Author(s): Jihyoung Lee, Kenta Matsumura, Ken-ichi Yamakoshi, Peter Rolfe, Shinobu Tanaka, Takehiro Yamakoshi
  • Organizer: The 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
  • Place of Presentation: 大阪国際会議場（大阪府・吹田市）
• [Presentation] iPhysioMeter：スマートフォン本体のみを用いた心拍・基準化容積脈波の測定 (2013)
  • Author(s): 松村健太, 山越健弘
  • Organizer: 第31回日本生理心理学会大会
  • Place of Presentation: 福井大学（福井県・福井市）
• [Presentation] Development of a novel tympanic temperature monitoring system for GT car racing athletes (2012)
  • Author(s): Jihyoung Lee
  • Organizer: World Congress on Medical Physics and Biomedical Engineering 2012
  • Place of Presentation: Beijing International Convention Center (中国・北京)
  • Year and Date: 2012-05-29
• [Presentation] Development of an in-car health screening system based on the simultaneous measurement of cardiovascular variables (2012)
  • Author(s): Takehiro Yamakoshi
  • Organizer: World Congress on Medical Physics and Biomedical Engineering 2012
  • Place of Presentation: Beijing International Convention Center (中国・北京)
  • Year and Date: 2012-05-29
• [Presentation] 寒冷・温水昇圧課題を用いた外耳道における基準化容積脈波の妥当性検証 (2012)
  • Author(s): 李知炯
  • Organizer: 第51回日本生体医工学会大会
  • Place of Presentation: 福岡国際会議場(福岡県・博多市)
  • Year and Date: 2012-05-10
• [Book] Methods in Molecular Biology: Mobile Health Technologies (2015)
  • Author(s): Kenta Matsumura, Peter Rolfe, Takehiro Yamakoshi
  • Publisher: Springer New York
• [Book] Methods in Molecular Biology: Mobile Health Technologies (2014)
  • Author(s): K. Matsumura, Peter Rolfe, Takehiro Yamakoshi
  • Publisher: Humana Press, a part of Springer Science+Business Media
• [Remarks] iPhysioMeter.com
  • URL: http://iphysiometer.com/app/
• [Remarks] 山越研究室
  • URL: http://www.fit.ac.jp/~yamakoshi
• [Remarks] iPhysioMeter.com
  • URL: http://iphysiometer.com/app/
• [Remarks] YamakoshiLab@FIT/RESEARCHS
  • URL: http://www.fit.ac.jp/~yamakoshi/detail10.html
• [Remarks]
  • URL: http://iphysiometer.com/app/