Three-dimensional finite element modelling of skeletal muscles: Parameter identification, simulation and verification

骨骼肌三维有限元建模：参数辨识、仿真与验证

• 批准号: 127753742
• 负责人: Professor Dr.-Ing. Markus Böl
• 金额: --
• 依托单位: Abteilung für Bewegungs- und Trainingswissenschaft
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/127753742?language=en
• 关键词: Three; dimensional; finite; element; modelling

As most muscles are tightly packed in ‘muscle-packages’, they have to interact with surrounding muscle tissue during contraction. In order to gain a deeper understanding of muscle packing under the premise of force generation and contraction velocity, it is necessary to study the architecture, the three-dimensional deformation and the power development of muscle packages.Based on this question, the main goal of this project throughout the entire funding phase is the development of a three-dimensional muscle model that allows realistic predictions of force development and three-dimensional deformation during muscle contractions. This was already achieved for the soleus muscle (SOL) of the rabbit. In this final funding phase, the developed model will also be transferred to other calf muscles of the rabbit (gastrocnemius muscle: GAS, plantaris muscle: PLA), which will ultimately be merged into a muscle package model (SOL, GAS, PLA).Thus, the goal of this final phase, which completes the overall project, is the additional acquisition of geometry data (aponeurosis localisation, three-dimensional fibre distributions) whose necessity has been proven due to the impact of muscle packing on muscle architecture. Further, open work from the previous funding phase for the characterisation of the material properties of GAS and PLA as well as for data evaluation and model validation shall be completed. Due to time-consuming and sometimes unexpected working steps (which were necessary for the processing of the application), this was not possible in the previously funded project period. Hence, there are extensive, experimental, three-dimensional muscle surface data during contraction for the GAS and the entire muscle package that still need to be evaluated.The data collected in this last funding phase will be incorporated into a three-dimensional model describing the muscle package. Thus, for the first time, a muscle package model is available, which enables the handling of selected questions on the function and the design of muscles, muscle packages and body segments.

由于大多数肌肉都被“肌肉包装”紧密地包装，因此他们必须在合同期间与周围的肌肉组织相互作用。为了在力量产生和收缩速度的前提下更深入地了解肌肉堆积，有必要研究架构，三维变形和肌肉套件的功率发展。基于这个问题，该项目的主要目标是整个资金阶段的主要目标，是在三维肌肉模型中的开发，可以在工子发展和三维方面进行三维预测。这已经为兔子的比目鱼肌（Sol）实现了。 In this final funding phase, the developed model will also be transferred to other calf muscles of the rabbit (gastrocnemius muscle: GAS, plantaris muscle: PLA), which will ultimately be merged into a muscle package model (SOL, GAS, PLA).Thus, the goal of This final phase, which completes the overall project, is the additional acquisition of geometry data (aponeurosis localisation, three-dimensional fibre distributions) whose necessary由于肌肉包装对肌肉建筑的影响，已被证明。此外，应完成以上基础阶段的开放工作，以表征气体和PLA的材料特性以及数据评估和模型验证。由于时间耗时，有时甚至是意外的工作步骤（这对于应用程序的处理是必需的），因此在先前资助的项目期间不可能。因此，在收缩期间，气体和仍需要评估的整个肌肉包装有广泛的，实验性的三维肌肉表面数据。在最后一个融资阶段收集的数据将纳入描述肌肉包装的三维模型中。这是第一次提供肌肉包装模型，该模型可以处理有关肌肉，肌肉包装和身体段功能和设计的选定问题。