A Musculoskeletal model for the lumbar spine
A Musculoskeletal model for the lumbar spine
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DOI：
10.1007/s10237-011-0290-6
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发表时间：
2012-01-01
影响因子：
3.5
通讯作者：
O'Reilly, Oliver M.
中科院分区：
文献类型：
--
作者：
Christophy, Miguel;Senan, Nur Adila Faruk;O'Reilly, Oliver M.
本文描述了一种新的腰椎肌肉骨骼模型。该模型具有刚性骨盆和骶骨，五个腰椎，以及由集中的胸椎和胸腔组成的刚性躯干。个体腰椎的运动被定义为关于三个旋转自由度的净腰椎运动的分数：屈曲-伸展、侧弯和轴向旋转。此外，8个主要的肌肉群的腰椎被纳入使用238个肌肉束的处方的参数在山型肌肉模型的帮助下获得了广泛的文献调查。该模型的功能包括预测关节反应，肌肉力量和肌肉激活模式的能力。为了说明该模型的能力，并验证其生理相似性，该模型的预测的力矩臂的肌肉示出了一系列的下背部的屈伸运动。该模型使用OpenSim平台，并可在https://www.simtk.org/home/lumbarspine上免费提供给其他对分析脊柱运动学感兴趣的脊柱研究人员。该模型还可以与现有的OpenSim模型集成，以构建更全面的人体模型。
A new musculoskeletal model for the lumbar spine is described in this paper. This model features a rigid pelvis and sacrum, the five lumbar vertebrae, and a rigid torso consisting of a lumped thoracic spine and ribcage. The motion of the individual lumbar vertebrae was defined as a fraction of the net lumbar movement about the three rotational degrees of freedom: flexion-extension lateral bending, and axial rotation. Additionally, the eight main muscle groups of the lumbar spine were incorporated using 238 muscle fascicles with prescriptions for the parameters in the Hill-type muscle models obtained with the help of an extensive literature survey. The features of the model include the abilities to predict joint reactions, muscle forces, and muscle activation patterns. To illustrate the capabilities of the model and validate its physiological similarity, the model's predictions for the moment arms of the muscles are shown for a range of flexion-extension motions of the lower back. The model uses the OpenSim platform and is freely available on https://www.simtk.org/home/lumbarspine to other spinal researchers interested in analyzing the kinematics of the spine. The model can also be integrated with existing OpenSim models to build more comprehensive models of the human body.