Lower Extremity EMG-driven Modeling with Automated Adjustment of Geometry

This project provides Matlab code for developing EMG-driven models of walking using scaled OpenSim lower extremity musculoskeletal models. The Matlab code adjusts not only traditional Hill-type muscle-tendon model parameters values (optimal muscle fiber length, tendon slack length) but also non-traditional musculoskeletal model parameter values (EMG scale factors, coefficients defining surrogate representations of muscle-tendon lengths, velocities, and moment arms). Along with the Matlab code, we provide sample walking data (marker, ground reaction, and EMG data) collected from a hemiparetic male subject and a sample scaled OpenSim musculoskeletal model of the subject. A README file provides instructions for how to perform the EMG-driven model calibration process using the provided Matlab code, walking data, and scaled OpenSim model. <br/><br/>This project includes the following software/data packages: <br/> <ul> <li> <a href="https://simtk.org/frs?group_id=1081#pack_1846">Project Downloads </a> : The following items are available for download from this project:1) Matlab code for performing EMG-driven neuromusculoskeletal model calibration as described in the associated journal article.2) Scaled generic OpenSim full-body walking model with calibrated lower body joint locations and orientations for a single male subject with right hemiparesis.3) Multiple cycles of experimental walking data (marker motion, ground reaction, and EMG data) collected on a tied-belt instrumented treadmill from the same subject walking at speeds ranging from 0.4 to 0.8 m/s. </li> </ul>

本课题提供了一套Matlab代码，旨在利用缩放后的OpenSim下肢骨骼肌肉模型开发EMG驱动的行走模型。该Matlab代码不仅调整了传统的希尔型肌肉-肌腱模型参数值（最佳肌肉纤维长度、肌腱松弛长度），还调整了非传统骨骼肌肉模型参数值（EMG尺度因子、定义肌肉-肌腱长度、速度和力臂替代表示的系数）。此外，我们提供了从一位半身不遂的男性受试者收集的样本行走数据（标记、地面反作用力和EMG数据）以及受试者的样本缩放OpenSim骨骼肌肉模型。README文件详细说明了如何使用所提供的Matlab代码、行走数据和缩放OpenSim模型执行EMG驱动模型校准过程。本课题包含以下软件/数据包：

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<li>项目下载 <a href="https://simtk.org/frs?group_id=1081#pack_1846">链接</a>：该项目提供以下可下载项：1) 执行EMG驱动神经肌肉骨骼模型校准的Matlab代码，该代码如相关期刊文章所述。2) 为右侧半身不遂的单个男性受试者定制的缩放通用OpenSim全身行走模型，包括校准后的下肢关节位置和方向。3) 在同一受试者身上收集的多个周期实验行走数据（标记运动、地面反作用力和EMG数据），受试者在0.4至0.8米/秒的速度范围内行走。</li>
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