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Shared and specific synchronous muscle synergies arisen from optimal feedback control theory

Bayati, H. R ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1109/NER.2009.5109258
  3. Publisher: 2009
  4. Abstract:
  5. In this study the properties of muscle synergies, arising from optimal feedback control are investigated. Three different tasks namely reaching, via-point, and hitting are performed using optimization of corresponding cost functions. Then by applying non-negative matrix factorization method to a dataset of muscle tensions, synchronous muscle synergies are obtained. In this way, different muscle patterns can be generated by linear combination of these basis vectors with non-negative time-varying scaling coefficients. According to our simulations some of obtained muscle synergies are shared between tasks and some of them are specific for one task. This finding is also in agreement with the properties of extracted muscle synergies from experimental approach. ©2009 IEEE
  6. Keywords:
  7. Muscle synergies ; Basis vector ; Data sets ; Experimental approaches ; Linear combinations ; Motor control ; Muscle pattern ; Muscle tension ; Nonnegative matrix factorization ; Optimal feedback control ; Optimal feedback control theory ; Scaling coefficients ; Time varying ; Blind source separation ; Control theory ; Cost functions ; Factorization ; Feedback control ; Motors ; Muscle ; Optimization ; System theory ; Feedback
  8. Source: 2009 4th International IEEE/EMBS Conference on Neural Engineering, NER '09, Antalya, 29 April 2009 through 2 May 2009 ; 2009 , Pages 155-158 ; 9781424420735 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/5109258