2013 Fiscal Year Final Research Report
Fundamental Study on the Clarification of Rupture Mechanism in Tendon and the Characterization of Damage Healing Process using Acoustic Information
| Project/Area Number |
24650267
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Biomedical engineering/Biological material science
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Ei 近畿大学, 生物理工学部, 准教授 (00309270)
SAKAI Takenobu 首都大学東京, 理工学研究科, 助教 (10516222)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 腱 / 微視損傷 / アコースティック・エミッション / AE位置評定 / 損傷治療 |
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| Research Abstract |
The microdamage of rabbit patellar tendon under static tensile load was detected by AE technique. The damage process of intact and injured tendon was successfully monitored. It was found that the higher amplitude AE signals were detected before the maximum stress under the higher loading rate. It was then suggested that larger scale of microdamages, such as bundles of fibers, ruptured simultaneously under the higher loading rate. AE source location was corresponded with the area where the local strain increased. Consequently, the fundamental insights for the damage monitoring technique which are indispensable for the optimization of programs of sports training or rehabilitation are obtained.
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