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Implementation of skeletal muscle model with advanced activation control

机译:具有高级激活控制的骨骼肌模型的实现

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The paper summarizes main principles of an advanced skeletal muscle model. The proposed mathematical model is suitable for a 3D muscle representation. It respects the microstructure of the muscle which is represented by three basic components: active fibers, passive fibers and a matrix. For purposes of presented work the existing material models suitable for the matrix and passive fibers are used and a new active fiber model is proposed. The active fiber model is based on the sliding cross-bridge theory of contraction. This theory is often used in modeling of skeletal and cardiac muscle contractions. In this work, a certain simplification of the cross-bridge distribution function is proposed, so that the 3D computer implementation becomes feasible. The new active fiber model is implemented into our research finite element code. A simple 3D muscle bundle-like model is created and the implemented composite model (involving the matrix, passive and active fibers) is used to perform the isometric, concentric and excentric muscle contraction simulations.
机译:本文总结了高级骨骼肌模型的主要原理。所提出的数学模型适用于3D肌肉表示。它尊重由三个基本组成部分代表的肌肉的微观结构:主动纤维,被动纤维和基质。为了进行介绍的工作,使用了适用于基质和无源纤维的现有材料模型,并提出了一种新的有源纤维模型。主动纤维模型基于滑动跨桥收缩理论。该理论通常用于骨骼肌和心肌收缩的建模。在这项工作中,提出了对跨桥分布函数的某种简化,从而使3D计算机实现变得可行。新的有源光纤模型已实现到我们的研究有限元代码中。创建一个简单的类似于3D肌肉束的模型,并使用已实现的复合模型(涉及基质,被动和主动纤维)执行等距,同心和偏心的肌肉收缩模拟。

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