Integrating dynamic stereo-radiography and surface-based motion data for subject-specific musculoskeletal dynamic modeling.
Integrating dynamic stereo-radiography and surface-based motion data for subject-specific musculoskeletal dynamic modeling.
复制标题
集成动态立体放射摄影和基于表面的运动数据，用于特定对象的肌肉骨骼动态建模。
DOI：
10.1016/j.jbiomech.2014.08.009
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发表时间：
2014
影响因子：
2.4
通讯作者：
Zhang,Xudong
中科院分区：
文献类型：
--
作者：
Zheng,Liying;Li,Kang;Shetye,Snehal;Zhang,Xudong
本文提出了一种新的特定对象的肌肉骨骼动力学建模方法，该方法集成了高精度的动态立体摄影(DSX)关节运动学和基于曲面的全身运动数据。我们通过在OpenSim中为参与半月板移植疗效研究的患者建立模型，结合胫股关节运动学的DSX数据来说明这种方法。我们将这个合并了(DSXI)的模型与仅使用表面测量数据构建的默认OpenSim模型进行了比较。两个模型的结构和参数是相同的，而(时间平均)胫股运动学的差异是旋转10°和平移10 mm数量级。将模型预测的胫股压缩力和膝关节肌肉激活与从仪器化全膝关节置换术(Fregly等人，2012年)和患者׳S的肌电记录中获得的文献数据进行比较。比较结果表明，引入DSX数据提高了肌肉骨骼动力学建模的准确性。
This manuscript presents a new subject-specific musculoskeletal dynamic modeling approach that integrates high-accuracy dynamic stereo-radiography (DSX) joint kinematics and surface-based full-body motion data. We illustrate this approach by building a model in OpenSim for a patient who participated in a meniscus transplantation efficacy study, incorporating DSX data of the tibiofemoral joint kinematics. We compared this DSX-incorporated (DSXI) model to a default OpenSim model built using surface-measured data alone. The architectures and parameters of the two models were identical, while the differences in (time-averaged) tibiofemoral kinematics were of the order of magnitude of 10° in rotation and 10 mm in translation. Model-predicted tibiofemoral compressive forces and knee muscle activations were compared against literature data acquired from instrumented total knee replacement components (Fregly et al., 2012) and the patient׳s EMG recording. The comparison demonstrated that the incorporation of DSX data improves the veracity of musculoskeletal dynamic modeling.