Novel Methods for Surface EMG Analysis and Exploration Based on Multi-Modal Gaussian Mixture Models

Anna Vögele, Rebeka Zsoldos, Björn Krüger und Theresia Licka
In: PLOS ONE (Juni 2016)
 

Abstract

This paper introduces a new method for data analysis of animal muscle activation during locomotion. It is based on fitting Gaussian mixture models (GMMs) to surface EMG data (sEMG). This approach enables researchers/users to isolate parts of the overall muscle activation within locomotion EMG data. Furthermore, it provides new opportunities for analysis and exploration of sEMG data by using the resulting Gaussian modes as atomic building blocks for a hierarchical clustering. In our experiments, composite peak models representing the general activation pattern per sensor location (one sensor on the long back muscle, three sensors on the gluteus muscle on each body side) were identified per individual for all 14 horses during walk and trot in the present study. Hereby we show the applicability of the method to identify composite peak models, which describe activation of different muscles throughout cycles of locomotion.

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Bibtex

@ARTICLE{voegele2016a,
    author = {V{\"o}gele, Anna and Zsoldos, Rebeka and Kr{\"u}ger, Bj{\"o}rn and Licka, Theresia},
     title = {Novel Methods for Surface EMG Analysis and Exploration Based on Multi-Modal Gaussian Mixture Models},
   journal = {PLOS ONE},
      year = {2016},
     month = jun,
  abstract = {This paper introduces a new method for data analysis of animal muscle activation during locomotion.
              It is based on fitting Gaussian mixture models (GMMs) to surface EMG data (sEMG). This approach
              enables researchers/users to isolate parts of the overall muscle activation within locomotion EMG
              data. Furthermore, it provides new opportunities for analysis and exploration of sEMG data by using
              the resulting Gaussian modes as atomic building blocks for a hierarchical clustering. In our
              experiments, composite peak models representing the general activation pattern per sensor location
              (one sensor on the long back muscle, three sensors on the gluteus muscle on each body side) were
              identified per individual for all 14 horses during walk and trot in the present study. Hereby we
              show the applicability of the method to identify composite peak models, which describe activation of
              different muscles throughout cycles of locomotion.},
       doi = {10.1371/journal.pone.0157239}
}