Dataset of Biomechanics in the Lower Extremity following Distance Running

This project is aimed the investigate the biomechanical changes in the lower extremity via musculoskeletal modelling during pre 5k and post 5k running sessions. The angles, moments, and contact forces of the hip, knee and ankle joints were calculated for pre and post comparison. Statistical parametric mapping (spm1d) was taken to check the significance in the time-series data. Principal component analysis (PCA) modeling was conducted the reveal the key features of variation. <br/><br/>This project includes the following software/data packages: <br/> <ul> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2323">PCA modeling of processed data </a> : This package contains the matrix of PC coefficients, percentage explained, PC scores and reconstructed 4PCs from PCA modeling. </li> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2208">PCA of Running GRFs </a> : This dataset includes ground reaction forces (ant-post, vertical & med-lat) of female and male runners with speed of 2.7m/s, 3.0m/s, 3.3m/s and 3.7m/s. Principal component analysis were performed to check the variances of different speeds. </li> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2324">Plot PCs in 'fig' </a> : This package contains the scores of the 4PCs and percentage explanation and line of accumulation in the first 10PCs. </li> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2322">Preprocessed data in ‘fig' </a> : This package contains the plotted figures of preprocessed joint angles, moments, and forces during walking (Walk) and running (Run) of pre 5k and post 5k run. </li> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2321">Preprocessed Dataset in 'mat' </a> : This package contains the processed (ready-for-use) dataset of joint angles, moments and contact forces in well-organized matrices. </li> <li> <a href="https://simtk.org/frs?group_id=1893#pack_2320">Raw Dataset in C3D </a> : This package contains the raw datasets collected from the motion capture experiments in C3D format. </li> </ul>

本项研究旨在通过肌肉骨骼建模，探究在5公里赛前和赛后跑步过程中下肢的生物力学变化。对髋、膝和踝关节的角位移、力矩以及接触力进行了前后的对比计算。采用统计参数映射（spm1d）方法对时间序列数据中的显著性进行了检验。通过主成分分析（PCA）建模，揭示了变化的关键特征。本项目包含以下软件/数据包：

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<li><a href="https://simtk.org/frs?group_id=1893#pack_2323">处理数据的主成分分析建模</a>：本包包含主成分系数矩阵、解释百分比、主成分得分以及由PCA建模重构的4PCs。</li>
<li><a href="https://simtk.org/frs?group_id=1893#pack_2208">跑步地面反应力PCA</a>：本数据集包括速度为2.7m/s、3.0m/s、3.3m/s和3.7m/s的男女跑者的地面反作用力（前后、垂直及内外侧），并进行了主成分分析以检验不同速度下的方差。</li>
<li><a href="https://simtk.org/frs?group_id=1893#pack_2324">在‘fig’中绘制主成分</a>：本包包含4PCs的得分、百分比解释以及前10个PCs的累积线。</li>
<li><a href="https://simtk.org/frs?group_id=1893#pack_2322">‘fig’中的预处理数据</a>：本包包含预处理后关节角度、力矩和力在步行（Walk）和跑步（Run）前后的绘制图形。</li>
<li><a href="https://simtk.org/frs?group_id=1893#pack_2321">‘mat’中的预处理数据集</a>：本包包含关节角度、力矩和接触力经过处理（可直接使用）的数据集，以有序矩阵的形式组织。</li>
<li><a href="https://simtk.org/frs?group_id=1893#pack_2320">C3D格式的原始数据集</a>：本包包含从运动捕捉实验中收集的原始数据集，以C3D格式存储。</li>
</ul>