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. 2018 Mar 29:9:309.
doi: 10.3389/fphys.2018.00309. eCollection 2018.

Intra-session and Inter-day Reliability of the Myon 320 Electromyography System During Sub-maximal Contractions

Graeme G Sorbie  1   2 , Michael J Williams  1   3 , David W Boyle  1 , Alexander Gray  1 , James Brouner  4 , Neil Gibson  3 , Julien S Baker  1 , Chris Easton  1 , Ukadike C Ugbolue  1   5
Affiliations

Intra-session and Inter-day Reliability of the Myon 320 Electromyography System During Sub-maximal Contractions

Graeme G Sorbie et al. Front Physiol. .

Abstract

Electromyography systems are widely used within the field of scientific and clinical practices. The reliability of these systems are paramount when conducting research. The reliability of Myon 320 Surface Electromyography System is yet to be determined. This study aims to determine the intra-session and inter-day reliability of the Myon 320 Surface Electromyography System. Muscle activity from fifteen participants was measured at the anterior deltoid muscle during a bilateral front raise exercise, the vastus lateralis muscle during a squat exercise and the extensor carpi radialis brevis (ECRB) muscle during an isometric handgrip task. Intra-session and inter-day reliability was calculated by intraclass correlation coefficient, standard error of measurement and coefficient of variation (CV). The normalized root mean squared (RMS) surface electromyographic signals produced good intra-session and inter-day testing intraclass correlation coefficient values (range: 0.63-0.97) together with low standard error of measurement (range: 1.49-2.32) and CV (range: 95% Confidence Interval = 0.36-12.71) measures for the dynamic-and-isometric contractions. The findings indicate that the Myon 320 Surface Electromyography System produces good to fair reliability when examining intra-session and inter-day reliability. Findings of the study provide evidence of the reliability of electromyography between trials which is essential during clinical testing.

Keywords: ICC; front raise; handgrip; sEMG; squat.

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Figures

Figure 1
Figure 1
(A) Surface electrode connected to the anterior deltoid muscle; (B) Surface electrode connected to the vastus lateralis muscle; (C) Surface electrode connected to the extensor carpi radialis brevis muscle; and (D) Myon receiver box with transmitters sitting in cradle.
See this image and copyright information in PMC

References

    1. Allison G., Marshall R., Singer K. (1993). EMG signal amplitude normalization technique in SSC movements. J. Electromyogr. Kinesiol. 3, 236–244. 10.1016/1050-6411(93)90013-M - DOI - PubMed
    1. Atkinson G., Nevill A., Edwards B. (1999). Communications to the annual conference of the british association of sport and exercise sciences (BASES). J. Sport Sci. 17, 3–70. 10.1080/026404199366299 - DOI - PubMed
    1. Auchincloss C. C., McLean L. (2009). The reliability of surface EMG recorded from the pelvic floor muscles. J. Neurosci. Methods 182, 85–96. 10.1016/j.jneumeth.2009.05.027 - DOI - PubMed
    1. Basmajian J. (1989). Biofeedback; Principles and Practice for Clinicians. Baltimore, MD: Wiliams & Wilkins.
    1. Byrne C. A., O'Keeffe D. T., Donnelly A. E., Lyons G. M. (2007). Effect of walking speed changes on tibialis anterior EMG during healthy gait for FES envelope design in drop foot correction. J. Electromyogr. Kinesiol. 17, 605–616. 10.1016/j.jelekin.2006.07.008 - DOI - PubMed

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