Consensus for experimental design in electromyography (CEDE) project: Single motor unit matrix. (February 2023)

• Record Type: Journal Article
• Authors: Martinez-Valdes, Eduardo; Enoka, Roger M.; Holobar, Aleš; McGill, Kevin; Farina, Dario; Besomi, Manuela; Hug, François; Falla, Deborah; Carson, Richard G.; Clancy, Edward A.; Disselhorst-Klug, Catherine; van Dieën, Jaap H.; Tucker, Kylie; Gandevia, Simon; Lowery, Madeleine; Søgaard, Karen; Besier, Thor; Merletti, Roberto; Kiernan, Matthew C.; Rothwell, John C.; Perreault, Eric; Hodges, Paul W.
• Is Part Of: Journal of electromyography and kinesiology. Volume 68(2023)
• Publication Date: 2023-02
• Subjects: Motor unit -- Motor neuron -- High-density surface electromyography -- Intramuscular electromyography; CDI Common drive index -- CIS Common input strength -- CKC Convolution kernel compensation -- CUSUM Cumulative sum -- DSDC Decompose-synthesise-decompose-compare -- ISI Inter-spike interval -- SMU Single motor unit -- MUAP Motor unit action potential -- MVC Maximum voluntary contraction -- SIL Silhouette threshold -- PNR Pulse to noise ratio; Electromyography -- Periodicals; Kinesiology -- Periodicals; Electromyography -- Periodicals; Movement -- physiology -- Periodicals; Muscles -- physiology -- Periodicals; Électromyographie -- Périodiques; Cinésiologie -- Périodiques; Electromyography; Kinesiology; Electronic journals; Periodicals; 616.740757
• DOI: 10.1016/j.jelekin.2022.102726
• Languages: English
• ISSNs: 1050-6411

Abstract

Abstract: The analysis of single motor unit (SMU) activity provides the foundation from which information about the neural strategies underlying the control of muscle force can be identified, due to the one-to-one association between the action potentials generated by an alpha motor neuron and those received by the innervated muscle fibers. Such a powerful assessment has been conventionally performed with invasive electrodes (i.e., intramuscular electromyography (EMG)), however, recent advances in signal processing techniques have enabled the identification of single motor unit (SMU) activity in high-density surface electromyography (HDsEMG) recordings. This matrix, developed by the Consensus for Experimental Design in Electromyography (CEDE) project, provides recommendations for the recording and analysis of SMU activity with both invasive (needle and fine-wire EMG) and non-invasive (HDsEMG) SMU identification methods, summarizing their advantages and disadvantages when used during different testing conditions. Recommendations for the analysis and reporting of discharge rate and peripheral (i.e., muscle fiber conduction velocity) SMU properties are also provided. The results of the Delphi process to reach consensus are contained in an appendix. This matrix is intended to help researchers to collect, report, and interpret SMU data in the context of both research and clinical applications.