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A versatile approach to determine instantaneous co-activation: Development, implementation and comparison to existing measures

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  • Daniel Viggiani
  • Jeff M Barrett
  • Kayla M Fewster
  • Jack Callaghan

Abstract

An adaptable method of computing muscle co-activity is presented. Instantaneous muscle activities from multiple muscles are reduced into commonality and activity level dimensions. Both dimensions are weighted independently and combined into a co-activation measure, Φ. Myoelectric data from relaxed and braced simulated rear vehicle impacts were used to compare Φ to two existing co-activity measures in muscle pair and multi-muscle cases, Φ showed greater sensitivity in the muscle pair case and could better discriminate the relaxed and braced conditions in the multi-muscle case than previous measures. The flexibility of Φ allowed tailoring to reflect the current purpose.

Suggested Citation

  • Daniel Viggiani & Jeff M Barrett & Kayla M Fewster & Jack Callaghan, 2018. "A versatile approach to determine instantaneous co-activation: Development, implementation and comparison to existing measures," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 21(11), pages 625-634, August.
    • Handle: RePEc:taf:gcmbxx:v:21:y:2018:i:11:p:625-634
    DOI: 10.1080/10255842.2018.1504213
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