ジャンプ時にアキレス腱組織に生じる局所ひずみ・応力の推定

DOI Web Site

書誌事項

タイトル別名
  • Estimation of local strain and stress in human Achilles tendon tissue during jumping
  • ジャンプジ ニ アキレスケン ソシキ ニ ショウジル キョクショヒズミ ・ オウリョク ノ スイテイ

この論文をさがす

抄録

<p>The amplitude and distribution of both strain and stress in human Achilles tendon during jumping were investigated by non-linear finite element analysis with a 5 parameter Mooney-Rivlin model. A hexahedral constitutive mesh model of Achilles tendon was constructed based on cross-sectional MR images. Anatomical insertion of tendon was fully fixed, also a 4000 N lengthening force was applied to the origin part to simulate jumping. A large deformation non-linear finite element analysis was used for computation. The first principal strain over 0.2 was shown in the part with small cross sectional area and in the upper part of the calcaneus, also the maximal first principal strain exceeded 0.33. The first principal stress in the similar parts was over 100 MPa (maximum 293 MPa). These parts are approximately where Achilles tendon's rupture and/or inflammation frequently occur. For sub-maximal increasing load level, these parts showed concentrated larger strain and stress earlier than other part, which could be related with the non-linear material property of Achilles tendon tissue. These results suggest that these parts frequently experience micro damage from this strain concentration during dynamic movements, thus become high risk part of ruptures and inflammation in tendon tissues. Therefore, the focused observation and caution of these parts would be important while investigating on injury risk of Achilles tendon. </p>

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ