Function of wheelchair to decrease the shear force applied to buttocks as the occurring factor of decubitus ulcers during reclining the back support

• Project/Area Number: 26750234
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Kawasaki University of Medical Welfare
• Principal Investigator: Kobara Kenichi 川崎医療福祉大学, 医療技術学部, 准教授 (10412256)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: 車椅子 / 褥瘡 / 臀部ずれ力 / リクライニング式車椅子 / シートカバー / リクライニング車いす / リクライニング式車いす

Outline of Final Research Achievements

The shear force is said as the occurring factor of decubitus ulcers on buttocks during sitting on a wheelchair. We investigated into the function of reclining wheelchair to decrease the shear force applied to buttocks when the buck support is reclining. The results suggested that the shear force was decreased by decreasing the static friction coefficient between the back support and the trunk during sitting on the reclining wheelchair.

Research Products

• [Journal Article] 背もたれ傾斜中の臀部ずれ力軽減を目的とした背もたれ用シートカバーの効果―車椅子使用高齢者を対象とした検証― (2017)
  • Author(s): 小原謙一，高橋 尚，藤田大介，大坂 裕，末廣忠延，平田淳也，樋上紘子，小畠敬太郎
  • Journal Title: 日本義肢装具学会誌 Volume: 33
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] バスタオルを敷きこむ範囲がリクライニング車椅子座位時の体幹筋群持続敵筋活動に及ぼす影響 (2016)
  • Author(s): 小原謙一，末廣忠延，大坂裕，高橋尚，藤田大介
  • Journal Title: 車椅子シーティング研究 Volume: 1 Pages: 13-18
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Influence of leg support elevation on horizontal force acting on the buttocks in a reclining wheelchair in different rotational axis positions of the back support (2015)
  • Author(s): Kenichi Kobara, Daisuke Fujita, Hiroshi Osaka, Hisashi Takahashi, Tadanobu Suehiro, Tomotaka Ito, Susumu Watanabe
  • Journal Title: Journal of Ergonomics Volume: 5 Issue: 03 Pages: 1-7
  • DOI: 10.4172/2165-7556.1000142
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Investigation of effect of leg support elevation timing on the horizontal force acting on the buttocks in a reclining wheelchair (2015)
  • Author(s): Kenichi Kobara, Hisashi Takahashi, Daisuke Fujita, Hiroshi Osaka, Tomotaka Ito, Tadanobu Suehiro
  • Journal Title: Journal of Physical Therapy Science Volume: 27 Issue: 8 Pages: 2605-2610
  • DOI: 10.1589/jpts.27.2605
  • NAID: 130005093910
  • ISSN: 0915-5287, 2187-5626
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] Characteristics of change in shear force applied to buttocks on elderly wheelchair-users during recline back support (2017)
  • Author(s): Kenichi Kobara, Hisashi Takahashi, Daisuke Fujita, Hiroshi Osaka, Tadanobu Suehiro
  • Organizer: WCPT-AWP & PTAT Congress 2017
  • Place of Presentation: Bangkok International Trade & Exhibition Center (Bangkok, Thailand)
  • Year and Date: 2017-06-28
  • Int'l Joint Research
• [Presentation] 車椅子使用高齢者では背もたれ傾斜中の臀部ずれ力軽減を目的とした背もたれ用シートカバーの効果は減少する (2017)
  • Author(s): 小原謙一, 高橋尚, 藤田大介, 大坂裕, 末廣忠延, 樋上紘子, 小畠敬太郎
  • Organizer: 第52回日本理学療法学術大会
  • Place of Presentation: 幕張メッセ（千葉県、千葉市）
  • Year and Date: 2017-05-12
• [Presentation] 背もたれ傾斜に伴う臀部ずれ力増大の抑制を目的とした背もたれ用シートカバーの効果検証―高齢車いす使用者を対象としてー (2016)
  • Author(s): 小原謙一, 高橋尚, 藤田大介, 大坂裕, 平田淳也, 樋上紘子, 小畠敬太郎
  • Organizer: 第32回日本義肢装具学会学術大会
  • Place of Presentation: 札幌コンベンションセンター（北海道、札幌市）
  • Year and Date: 2016-10-15
• [Presentation] バスタオルを敷いたリクライニング車いす座位時の体幹筋群持続的筋活動の検討 (2016)
  • Author(s): 小原謙一, 末廣忠延, 大坂裕, 高橋尚, 藤田大介
  • Organizer: 第53回日本リハビリテーション医学会学術集会
  • Place of Presentation: 国立京都国際会館（京都府、京都市）
  • Year and Date: 2016-06-09
• [Presentation] 背もたれ傾斜中における臀部ずれ力変動軽減のための背もたれ用シートカバーの効果検証 (2016)
  • Author(s): 小原謙一, 藤田大介, 大坂裕, 伊藤智崇, 高橋尚, 末廣忠延
  • Organizer: 第51回日本理学療法学術大会
  • Place of Presentation: 札幌コンベンションセンター（北海道、札幌市）
  • Year and Date: 2016-05-27
• [Presentation] レッグサポートのエレベーティングの有無が背もたれ後傾に伴う臀部ずれ力の変動に及ぼす影響 (2015)
  • Author(s): 小原謙一，藤田大介，大坂裕，伊藤智崇，高橋尚，末廣忠延，渡邉進
  • Organizer: 第50回日本理学療法学術大会
  • Place of Presentation: 東京国際フォーラム（東京都千代田区）
  • Year and Date: 2015-06-05 – 2015-06-07
• [Presentation] レッグサポートのエレベーティングの有無が背もたれ後傾に伴う臀部ずれ力の変動に及ぼす影響 (2015)
  • Author(s): 小原謙一, 藤田大介, 大坂裕, 伊藤智崇, 高橋尚, 末廣忠延, 渡邉進
  • Organizer: 第50回日本理学療法学術大会
  • Place of Presentation: 東京国際フォーラム、千代田区、東京
  • Year and Date: 2015-06-05
• [Presentation] Investigation of the timing to elevate the leg support to reduce the horizontal force applied to the buttocks in a reclining wheelchair (2015)
  • Author(s): Kenichi Kobara, Hisashi Takahashi, Daisuke Fujita, Hiroshi Osaka, Tomotaka Ito, Tadanobu Suehiro, Susumu Watanabe
  • Organizer: WCPT Congress 2015
  • Place of Presentation: Suntec Singapore Convention & Exhibition Centre, Suntec City, Singapore
  • Year and Date: 2015-05-02
  • Int'l Joint Research
• [Presentation] INFLUENCE OF ELEVATING LEG-SUPPORTS ON HORIZONTAL FORCE APPLIED TO BUTTOCKS IN A RECLINING WHEELCHAIR (2015)
  • Author(s): Kobara K., Takahashi H., Fujita D., Osaka H., Ito T., Suehiro T., Watanabe S.
  • Organizer: World Confederation for Physical Therapy Congress 2015
  • Place of Presentation: Suntec City (Singapore)
  • Year and Date: 2015-05-01 – 2015-05-04
• [Patent(Industrial Property Rights)] 背もたれ傾斜中の臀部ずれ力の変動軽減を目的とした背もたれ用摩擦軽減シートカバー (2015)
  • Inventor(s): 小原謙一
  • Industrial Property Rights Holder: 川崎学園
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2015-210570
  • Filing Date: 2015-10-27