2012 Fiscal Year Final Research Report
In vivo measurement of 3D load transfer mechanism in the lower extremity
| Project/Area Number |
22560074
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SAKAMOTO Makoto 新潟大学, 医歯学系, 教授 (80215657)
TANABE Yuji 新潟大学, 自然科学系, 教授 (60143020)
OMORI Go 新潟大学, 研究推進機構超域学術院, 教授 (70283009)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 生体力学 |
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| Research Abstract |
In order to investigate the 3-dimensional (3D) load transfer mechanism in thelower extremity, articular contact behavior at the tibiofemoral and patellofemoral joints and deformationof the patellar tendon were evaluated in vivo using 3D joint models and images of joint motion capturedby calibrated x-ray systems. As the flexion angle of the knee changed, the location of the contact areaalso altered. The relative elongation of the patellar tendon increased as the knee flexed up to 60°. Beyond 60°, the elongation in the lateral portion of the tendon decreased. The direction and theamplitude of the force applied across the tibiofemoral and patellofemoral joints also varied with the kneemotion.
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