Passive transverse mechanical properties of skeletal muscle under in vivo compression
Passive transverse mechanical properties of skeletal muscle under in vivo compression
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DOI：
10.1016/s0021-9290(01)00083-5
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发表时间：
2001-10-01
影响因子：
2.4
通讯作者：
Baaijens, FPT
中科院分区：
文献类型：
--
作者：
Bosboom, EMH;Hesselink, MKC;Baaijens, FPT
本研究的目的是确定骨骼肌的被动横向力学特性。对4块大鼠胫骨前肌进行了压缩实验。为了评估实验过程中肌肉的应力和应变分布，我们建立了每个肌肉截面的平面应力模型。采用不可压缩粘弹性Ogden模型描述被动肌肉行为。通过将计算的压痕力与测量的压痕力拟合，确定了四个材料参数。弹性参数mu和alpha分别为15.6 +/-5.4 kPa和21.4 +/-5.7 kPa。粘弹性参数，和。分别为0.549±0.056和6.01±0.42 s。当将估计的材料参数应用于三维有限元模型时，可以准确地模拟被测材料的行为。2001爱思唯尔科学有限公司版权所有。
The objective of the present study is to determine the passive transverse mechanical properties of skeletal muscle. Compression experiments were performed on four rat tibialis anterior muscles. To assess the stress- and strain-distributions in the muscle during the experiment, a plane stress model of the cross section was developed for each muscle. The incompressible viscoelastic Ogden model was used to describe the passive muscle behaviour. The four material parameters were determined by fitting calculated indentation forces on measured indentation forces. The elastic parameters, mu and alpha were 15.6 +/-5.4 kPa and 21.4 +/-5.7, respectively. The viscoelastic parameters, delta and tau. were 0.549 +/-0.056 and 6.01 +/-0.42 s. When applying the estimated material parameters in a three-dimensional finite element model, the measured behaviour can be accurately simulated. (C) 2001 Elsevier Science Ltd. All rights reserved.