This study reports a surface electromyogram and force of contraction model. The objective was to investigate the effect of changes in the size, type and number of motor units in the Tibialis Anterior muscle to surface electromyogram and force of dorsiflexion. A computational model to simulate surface electromyogram and associated force of contraction by the Tibialis Anterior muscle was developed. This model was simulated for isometric dorsiflexion, and comparative experiments were conducted for validation. Repeated simulations were performed to investigate the different parameters and evaluate inter-experimental variability. An equivalence statistical test and the Bland-Altman method were used to observe the significance between the simulated and experimental data. Simulated and experimentally recorded data had high similarity for the three measures: maximal power of power spectral density (p < 0.0001), root mean square of surface electromyogram (p < 0.0001) and force recorded at the footplate (p < 0.03). Inter-subject variability in the experimental results was in-line with the variability in the repeated simulation results. This experimentally validated computational model for the surface electromyogram and force of the Tibialis Anterior muscle is significant as it allows the examination of three important muscular factors associated with ageing and disease: size, fibre type and number of motor units.

中文翻译：

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胫骨前肌表面肌电图和力模型用于检查肌肉因素的实施和实验验证。

这项研究报告了表面肌电图和收缩力模型。目的是研究改变胫骨前肌运动单位的大小，类型和数量对表面肌电图和背屈力的影响。建立了模拟胫骨前肌表面肌电图和相关收缩力的计算模型。模拟该模型的等距背屈，并进行了比较实验以进行验证。进行重复的模拟以研究不同的参数并评估实验间的变异性。用等效统计检验和Bland-Altman方法观察模拟数据和实验数据之间的显着性。模拟和实验记录的数据在以下三个方面具有高度相似性：功率谱密度的最大功效（p <0.0001），表面肌电图的均方根（p <0.0001）和在脚踏板处记录的力（p <0.03）。实验结果中受试者间的变异性与重复模拟结果中的变异性一致。这个经过实验验证的胫骨前肌表面肌电图和力量计算模型非常重要，因为它可以检查与衰老和疾病相关的三个重要肌肉因素：大小，纤维类型和运动单位数量。实验结果中受试者间的变异性与重复模拟结果中的变异性一致。这个经过实验验证的胫骨前肌表面肌电图和力量计算模型非常重要，因为它可以检查与衰老和疾病相关的三个重要肌肉因素：大小，纤维类型和运动单位数量。实验结果中受试者间的变异性与重复模拟结果中的变异性一致。这个经过实验验证的胫骨前肌表面肌电图和力量计算模型非常重要，因为它可以检查与衰老和疾病相关的三个重要肌肉因素：大小，纤维类型和运动单位数量。