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

Daniel Viggiani, Jeff M Barrett, Kayla M Fewster and Jack Callaghan

Computer Methods in Biomechanics and Biomedical Engineering, 2018, vol. 21, issue 11, 625-634

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.

Date: 2018
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DOI: 10.1080/10255842.2018.1504213

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