A versatile approach to determine instantaneous co-activation: Development, implementation and comparison to existing measures. Issue 11 (18th August 2018)

• Record Type: Journal Article
• Authors: Viggiani, Daniel; Barrett, Jeff M; Fewster, Kayla M; Callaghan, Jack
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 21:Issue 11(2018)
• Page Start: 625
• Page End: 634
• Publication Date: 2018-08-18
• Subjects: Co-activity -- muscle activity -- electromyography -- rear impact -- co-contraction; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2018.1504213
• Languages: English
• ISSNs: 1025-5842

Abstract

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.