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Bone conduction mapping for determining the cause of hearing loss in kendo players

Research Project

Project/Area Number 26350826
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Sports science
Research InstitutionSendai National College of Technology

Principal Investigator

Hamanishi Shinji  仙台高等専門学校, 総合工学科, 准教授 (00374968)

Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords骨導 / 剣道 / 難聴 / 打撃 / 有限要素法 / 聴覚 / 剣道難聴 / 衝撃力 / シミュレーション
Outline of Final Research Achievements

Kendo, Japanese fencing, is a modern martial art, which descended from swordsmanship, and is widely practiced in Japan, Korea and many other countries today. Many audiometric studies have shown that kendo training over many years often causes sensorineural hearing loss at 2kHz and/or 4kHz. Although the risk of kendo-associated hearing loss has long been known, its mechanism is still unclear.
Our hypothesis is that the cause of hearing loss by kendo may possibly be related to accumulation of small concussions in the inner ear by the impact of the bamboo sword on the head, which is the most common target area, or by excessive noise of shouting during kendo training and matches.
In this study, in order to evaluate the effects of impact on bone conduction, we made a “bone conduction map” by experiments using a human skull model and results were compared simulation results using FE computational model of a human head.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (26 results)

All 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (4 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (19 results) (of which Int'l Joint Research: 6 results) Remarks (1 results)

  • [Int'l Joint Research] Incheon National University(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Stanford University(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Incheon National University(韓国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Stanford University/Massachusetts Eye and Ear(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Impact-induced bone conduction simulation to determine the cause of hearing loss in kendo players2018

    • Author(s)
      Hamanishi S, Namkeun K, Mo S
    • Journal Title

      Proceedings of the 2017 International Budo Conference

      Volume: Supplement Pages: 48-49

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of a Finite Element Model for Normal and Pathological Middle Ears: Impedance, Reflectance, and Sweep Frequency Impedance.2014

    • Author(s)
      Sunil PURIA, Hongxue CAI, Shinji HAMANISHI, Kevin N O'CONNOR, Charles STEELE
    • Journal Title

      The Journal of the Acoustical Society of America

      Volume: 135(4) Pages: 2278-2278

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] 剣道打撃時の骨導に及ぼす頭部軟組織の影響2018

    • Author(s)
      菊地航平,濱西伸治
    • Organizer
      日本機械学会 東北学生会 第48 回学生員卒業研究発表講演会,福島県郡山市,2018年3月7日
    • Related Report
      2017 Annual Research Report
  • [Presentation] 頭蓋骨模型を用いた剣道打撃時の骨導分布2017

    • Author(s)
      浅野崚太,濱西伸治
    • Organizer
      日本機械学会 東北学生会 第47 回学生員卒業研究発表講演会
    • Place of Presentation
      東北学院大学 (宮城県多賀城市)
    • Year and Date
      2017-03-08
    • Related Report
      2016 Research-status Report
  • [Presentation] 仙台高専における授業改善への取り組み2017

    • Author(s)
      若生一広,伊師華江,熊谷晃一,相模誓雄,櫻庭弘,佐藤徹雄,武田淳,田中ゆみ,濱西伸治,本郷哲,宮崎義久,山野内敬,矢島邦昭,奥村俊昭
    • Organizer
      第22回高専シンポジウムin Mie
    • Place of Presentation
      鳥羽商船高専 (鳥取県鳥羽市)
    • Year and Date
      2017-01-28
    • Related Report
      2016 Research-status Report
  • [Presentation] 骨導マップによる剣道難聴発生メカニズムの解明2017

    • Author(s)
      濱西伸治,Kim Namkeun,青木良浩,和田仁
    • Organizer
      日本機械学会 第29回バイオエンジニアリング講演会
    • Place of Presentation
      ウインクあいち (愛知県名古屋市)
    • Year and Date
      2017-01-20
    • Related Report
      2016 Research-status Report
  • [Presentation] Difference in the Dynamic Behavior of the Hearing Apparatus Between Neonates and Adults: The Effects on Tympanometry2017

    • Author(s)
      Murakoshi M, Hamanishi S, Aithal V, Joseph K, Wada H
    • Organizer
      XVI Congress of the International Societyof Biomechanics(ISB2017), Brisbane, Australia, Jul 27, 2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Dynamic Characteristics of Neonatal Ear up to 6kHz using a Finite Element Modeling Approach2017

    • Author(s)
      Hamanishi S, Murakoshi M, Wada H
    • Organizer
      XXVI Congress of the International Societyof Biomechanics(ISB2017), Brisbane, Australia, Jul 27, 2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Impact-induced Bone Conduction Simulation to Determine the Cause of Hearing Loss in Kendo Players2017

    • Author(s)
      Hamanishi S, Namkeun K, Mo S
    • Organizer
      2017 International Budo conference, Japanese Academy of Budo 50th Annniversary Conference, Osaka, Sep 6, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improvement of Skills in Interactive Teaching Through Objective and Quantitative Evaluation by Students and Teachers2017

    • Author(s)
      Wako K, Sekido M, Hamanishi S, Okumura M, Takeda J, Ishi H, Miyazaki Y, Hongo S, Sakuraba H, Yamada H, Yairi S, Yagyu H, Matsubara M, Suzuki K, Tanaka Y, Oshima M
    • Organizer
      11th International Symposium on Advances in Technology Education (ISATE2017), Ngee Ann Polytechnic, Singapore, Sep 21, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic Characteristics of the Outer and Middle Ears in Neonates2016

    • Author(s)
      Hiroshi WADA, Michio MURAKOSHI, Venkatesh AITHAL, Joseph KEI, Shinji HAMANISHI, Carlie DRISCOLL, Andrew SWANSTON
    • Organizer
      33rd World Congress of Audiology
    • Place of Presentation
      Vancouver (CANADA)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Physiological and Computational Approaches to Determine the Cause of Hearing Loss in Kendo Players2016

    • Author(s)
      Shinji HAMANISHI, Namkeun KIM, Yoshihiro AOKI, Hiroshi WADA
    • Organizer
      IUTAM Symposium on Advances in Biomechanics of Hearing
    • Place of Presentation
      Stuttgart (Germany)
    • Year and Date
      2016-05-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of Neotanal Tympanometry Using SFI Data2016

    • Author(s)
      Michio MURAKOSHI, Nattikan KANKA, Shinji HAMANISHI, Hiroshi WADA
    • Organizer
      IUTAM Symposium on Advances in Biomechanics of Hearing
    • Place of Presentation
      Stuttgart (Germany)
    • Year and Date
      2016-05-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Physiological and Computational Approaches to Determine the Cause of Hearing Loss in Kendo Players2016

    • Author(s)
      Shinji Hamanishi, Namkeun Kim, Yoshihiro Aoki, Hiroshi Wada
    • Organizer
      IUTAM Symposium on Advances in Biomechanics of Hearing
    • Place of Presentation
      Stuttgart, Germany
    • Year and Date
      2016-05-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] SFIメータを用いた新生児中耳動特性の経時変化2016

    • Author(s)
      石田幹,濱西伸治
    • Organizer
      日本機械学会第46回学生員卒業研究発表講演会
    • Place of Presentation
      福島大学
    • Year and Date
      2016-03-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 有限要素法(FEM)新生児聴覚モデルを用いた中耳病変予測2016

    • Author(s)
      清野史崇,濱西伸治
    • Organizer
      日本機械学会第46回学生員卒業研究発表講演会
    • Place of Presentation
      福島大学
    • Year and Date
      2016-03-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 新生児外耳道の発達と外耳・中耳動特性の経時変化2016

    • Author(s)
      濱西伸治,村越道生,C. Steele,S. Puria,和田 仁
    • Organizer
      日本機械学会 第28回バイオエンジニアリング講演会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2016-01-09
    • Related Report
      2015 Research-status Report
  • [Presentation] 中耳・内耳病変診断装置用プローブの開発2015

    • Author(s)
      油谷友樹,濱西伸治,和田仁
    • Organizer
      平成27年東北地区若手研究者研究発表会
    • Place of Presentation
      日本大学工学部(郡山市)
    • Year and Date
      2015-02-28
    • Related Report
      2014 Research-status Report
  • [Presentation] A Hybrid Ear-Canal and Middle-Ear Modeling Approach for Neonates2015

    • Author(s)
      Shinji HAMANISHI, Michio MURAKOSHI, Charles R. STEELE, Hiroshi WADA, Sunil PURIA
    • Organizer
      Association for Research in Otolaryngology 38th AnnualMidWinter Meeting
    • Place of Presentation
      Marriott Waterfront Hotel (Baltimore, USA)
    • Year and Date
      2015-02-20 – 2015-02-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 有限要素法による新生児の外耳・中耳動特性解析2015

    • Author(s)
      濱西伸治,村越道生,C. Steele,S. Puria,和田 仁
    • Organizer
      日本機械学会 第27回バイオエンジニアリング講演会
    • Place of Presentation
      朱鷺メッセ新潟コンベンションセンター(新潟市)
    • Year and Date
      2015-01-09 – 2015-01-10
    • Related Report
      2014 Research-status Report
  • [Presentation] 新生児における中耳疾患診断ティンパノメトリーの解析2015

    • Author(s)
      村越道生,濱西伸治,和田仁
    • Organizer
      日本機械学会 第27回バイオエンジニアリング講演会
    • Place of Presentation
      朱鷺メッセ新潟コンベンションセンター(新潟市)
    • Year and Date
      2015-01-09 – 2015-01-10
    • Related Report
      2014 Research-status Report
  • [Remarks] 仙台高等専門学校 名取キャンパス 教員業績公開(濱西伸治)

    • URL

      https://www.sendai-nct.ac.jp/wp-content/themes/omc/files/college/113_03_02.pdf

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2022-07-19  

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