Comparative evaluation of motor unit architecture models.

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...

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Publicado en:Medical & Biological Engineering & Computing Vol. 47; no. 11; pp. 1131 - 1143
Autores principales: Navallas J, Malanda A, Gila L, Rodriguez J, Rodriguez I, Navallas, Javier, Malanda, Armando, Gila, Luis, Rodriguez, Javier, Rodriguez, Ignacio
Formato: research Journal Article
Publicado: Springer Nature Nov2009
Acceso en línea:Ver este registro en EBSCOhost
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        atl: Comparative evaluation of motor unit architecture models.
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          Navallas J
          Malanda A
          Gila L
          Rodriguez J
          Rodriguez I
          Navallas, Javier
          Malanda, Armando
          Gila, Luis
          Rodriguez, Javier
          Rodriguez, Ignacio
        affil: Department of Electric and Electronic Engineerging, Public University of Navarra, 31006, Pamplona, Navarra, Spain
      sug:
        subj:
          Computer Simulation
          Movement
          Muscle, Skeletal Physiology
          Algorithms
      ab: 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.
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    language: English
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