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Biomechanics on the mechanical adaptation of biological tissues and its applications to engineering

Research Project

Project/Area Number 08650110
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionRitsumeikan University

Principal Investigator

YAMAMOTO Noritaka  Fac.of Science and Engineering, Ritsumeikan University Associate Professor, 理工学部, 助教授 (40210546)

Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsBiomechanics / Mechanical adaptation / Biological tissue / Exercise / Patellar tendon / Mechanical properties / Tension / In vivo measurement
Research Abstract

1.The in vivo force applied to the patellar tendon (PT) of rat during treadmill running was measured using an implantable force transducer. The transducer consisted of a slightly curved stainless steel plate on which a strain gauge was bonded. The mean peak force during running at the speed of 0.6km/h on a level was 11.3N and the peak stress was 6MPa. The mean peak force increased by 22% with increase in the speed from 0.6 to 1.0km/h, but the increase was not significant. There were no significant differences in the peak force among level running and inclined running on the slopes of 15 and 30 degrees.
2.After running at 0.6km/h on a level, rats were sacrificed and tensile tests were performed on their PTs. There were no significant differences in the dimensions and mechanical properties. These results indicate that the cyclic loading of the peak force of 11.3 N (the peak stress of 6 MPa) did not change the mechanical properties of PT.
3.The cyclic load was applied to rat patellar tendon in vitro. The mechanical strength was unchanged by the loading of the peak stress of 9 MPa but significantly decreased by that of 10.5 MPa. These values of peak stress were 1.5 and 1.75 times of that applied to the PT of rat during running at 0.6 km/h on a level, respectively.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 高内 正美, 山本 憲隆: "ラット膝蓋腱に作用する張力の生体内計測" 日本機械学会第10回バイオエンジニアリング講演会講演論文集. 118-119 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] N.Yamamoto, M.Takauchi: "In Vivo Measurement of Patellar Tendon Force in Rat during Running on a Treadmill" Proc.3rd World Congress of Biomechanics. ((発表予定))

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Takauchi and N.Yamamoto: "In Vivo Measurement of Tension in Rat Patellar Tendon" Proc.10th Bioengineering Conference. 118-119 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] N.Yamamoto and M.Takauchi: "In Vivo Measurement of Patellar Tendon Force in Rat during Running on a Treadmill" Proc.3rd World Congress of Biomechanics. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 高内政美, 山本憲隆: "ラット膝蓋腱に作用する張力の生体内計測" 日本機械学会第10回バイオエンジニアリング講演会講演論文集. 118-119 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] N.Yamamoto, M.Takauchi: "In Vivo Measurement of Patellar Tendon Force in Rat during Running on a Treadmill" Proc.Third World Congress of Biomechanics. (発売予定).

    • Related Report
      1997 Annual Research Report
  • [Publications] 山本憲隆,他: "生体内で過負荷を繰り返し作用させた家兎膝蓋腱の力学的性質" 日本機械学会第74期全国大会講演論文集. 279-280 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 山本憲隆,他: "直接的に生体内で繰り返し負荷を作用させた家兎膝蓋腱の力学的性質" 日本機械学会[No.96-20]シンポジウム講演論文集. 259-263 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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