剣道による難聴について

• 山川 卓也

  順天堂大学耳鼻咽喉科学教室

• 芳川 洋

  順天堂大学耳鼻咽喉科学教室

• 安藤 一郎

  順天堂浦安病院耳鼻咽喉科

• 市川 銀一郎

  順天堂大学耳鼻咽喉科学教室

書誌事項

タイトル別名

• Hearing Loss Due to Kendo.

抄録

Kendo is a traditional Japanese Sport and it is controversy whether Kendo causes hearing loss or not. The purpose of this report is to study the effects of a hitting sound and shock by “Shinai”, a bamboo sword, during Kendo exercise.<br>The hitting sound level were measured under the next three conditions; Menhimo, a belt for fitting “Men-Mask” is fastened hard, fastened ordinally, and using an air cushion inside a Men-Mask. As a result, the hitting sound level was over 120dB when the Men-Mask was fastened hard.<br>Shock was estimated by measuring the vibration acceleration level under the next five conditions, the Menhimo is fastened hard, fastened ordinally, using an air cushion inside the Men-Mask, feather or a styrol shock absorber. The vibration acceleration level was 77.7dB when the Menhimo was fastened hard.<br>However, if the air cushion was used inside the Men-Mask, the hitting sound level was decreased by 10dB, and the vibration acceleration level was about 1/70. We speculated that the hitting sound level and shock by Shinai had an excessive effect on inner ear, therefore Kendo exercise for a long time might cause a hearing loss.

収録刊行物

• ＡＵＤＩＯＬＯＧＹ　ＪＡＰＡＮ

  ＡＵＤＩＯＬＯＧＹ　ＪＡＰＡＮ 38 (4), 284-290, 1995

  一般社団法人 日本聴覚医学会

キーワード

• 難聴
• 衝撃
• 剣道

詳細情報

• CRID: 1390001204840229632
• NII論文ID: 130003712319
• NII論文ID: 10009449950
• NII書誌ID: AN00000347
• DOI: 10.4295/audiology.38.284
• ISSN: 18837301
• ISSN: 03038106
• Web Site: https://search.jamas.or.jp/link/ui/1996056933
• 本文言語コード: ja
• データソース種別:
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  • Crossref
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• 抄録ライセンスフラグ: 使用不可