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Effect of considering stability requirements on antagonistic muscle activities using a musculoskeletal model of the human lumbar spine

机译:考虑使用人腰椎肌肉骨骼模型对拮抗肌肉活动稳定性要求的影响

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The recruitment pattern of trunk muscles is determined using a three-dimensional model of the spine with two joints and six symmetric pairs of muscles in which both equilibrium and stability requirements are satisfied. Model predictions are verified using Anybody Modeling System (AMS) and Abaqus. The model is used to test the hypothesis that antagonistic muscle activities are necessary for the spinal stability. The model with stability constraints predicts muscle activities greater than those predicted without stability consideration. In agreement with experimental data, the stability-based model predicts antagonistic muscle activities. It is shown that spinal stability increases with trunk flexion and further improves at heavier tasks.
机译:躯干肌肉的招募模式使用具有两个关节和六对对称肌肉的三维模型来确定,其中满足平衡和稳定性要求。使用任何人建模系统(AMS)和ABAQU进行验证模型预测。该模型用于测试脊柱稳定性所必需拮抗肌肉活动的假设。具有稳定性约束的模型预测肌肉活动大于没有稳定考虑的肌肉活动。在与实验数据一致中,基于稳定的模型预测了拮抗肌活动。结果表明,脊柱稳定性随着树干屈曲而增加,并进一步提高了较重的任务。

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