AN ACTIVATION RECRUITMENT SCHEME FOR USE IN MUSCLE MODELING
AN ACTIVATION RECRUITMENT SCHEME FOR USE IN MUSCLE MODELING
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DOI：
10.1016/0021-9290(92)90059-a
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发表时间：
1992-12-01
影响因子：
2.4
通讯作者：
HULL, ML
中科院分区：
文献类型：
--
作者：
HAWKINS, DA;HULL, ML
推导出一个新的激活招聘计划和一项旨在测试其有效性的研究结果。激活方案利用处理后的表面EMG信号、肌肉成分、肌肉结构和实验确定的激活系数的输入数据。在推导过程中，考虑了肌肉激活与肌纤维募集之间的关系。在实验研究中，肱三头肌肌肉力量被确定为等长肘伸展任务的强度变化从10至100%的最大自主收缩（MVC）使用肌肉模型，包括激活方案，和逆动力学技术。将两种方法计算的力进行统计学比较。模型化的三头肌力量是没有显着不同的实验结果确定使用逆动力学技术的平均激活水平大于25%的MVC，但显着不同的激活水平小于25%的MVC。这些结果支持使用的激活招聘计划中的中度至大的激活水平，并建议，除了纤维招聘的因素在较低的激活水平的力调节中发挥作用。
The derivation of a new activation-recruitment scheme and the results of a study designed to test its validity are presented. The activation scheme utilizes input data of processed surface EMG signals, muscle composition, muscle architecture, and experimentally determined activation coefficients. In the derivation, the relationship between muscle activation and muscle fiber recruitment was considered. In the experimental study, triceps muscle force was determined for isometric elbow extension tasks varying in intensity from 10 to 100% of a maximum voluntary contraction (MVC) using both a muscle model that incorporates the activation scheme, and inverse dynamics techniques. The forces calculated using the two methods were compared statistically. The modeled triceps force was not significantly different from the experimental results determined using inverse dynamics techniques for average activation levels greater than 25% of MVC, but was significantly different for activation levels less than 25% of MVC. These results lend support for use of the activation-recruitment scheme for moderate to large activation levels, and suggest that factors in addition to fiber recruitment play a role in force regulation at lower activation levels.