Comparative evaluation of motor unit architecture models
Comparative evaluation of motor unit architecture models
复制标题
运动单元架构模型的比较评估
DOI：
10.1007/s11517-009-0526-0
复制
发表时间：
2009
影响因子：
3.2
通讯作者：
I. Rodríguez
中科院分区：
文献类型：
--
作者：
Javier Navallas;A. Malanda;Luis Gila;Javier Rodríguez;I. Rodríguez
我们对9种不同的运动单元结构建模方法的仿真结果进行了统计评估和比较，这些方法是由四种运动单元区域放置算法和两种神经模式算法(其中一种组合允许双重方法)组合而来的。我们测试这些模型的结果是否符合公认的生理学原则。我们的结果表明，基于独立和均匀分布的区域放置的算法总是导致不想要的边缘效应，表现为重叠的运动单元区域的数量向肌肉横截面的边缘衰减。这种边缘效果会干扰模拟电机单元的属性。另一方面，控制运动单位的放置，以最小化肌肉纤维密度(MFD)的空间变异，可以产生模拟的运动单位，更好地反映目前可获得的关于运动单位结构的经验证据。
We present a statistical evaluation and comparison of the simulation outcomes of nine different motor unit architecture modeling approaches, which derive from combinations of four motor unit territory placement algorithms with two innervation pattern algorithms (one of the combinations allows for a double approach). We test how well the outcomes of these models agree with well-established physiological principles. Our results show that algorithms based on independent and uniformly distributed territory placement always lead to an unwanted edge effect consisting in a decay of the number of overlapping motor unit territories toward the edge of the muscle cross section. This edge effect interferes with the properties of the simulated motor units. On the other hand, controlled placement of motor units, so as to minimize the spatial variance of muscle fiber density (MFD), can result in simulated motor units which better reflect the empirical evidence currently available about motor unit architecture.
影响因子：
2.5
作者：
Keenan, Kevin G.;Valero-Cuevas, Francisco J.
通讯作者：
Valero-Cuevas, Francisco J.