Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study

Erik Stålberg; Donald B. Sanders; Sajjad Ali; Gerald Cooray; Lea Leonardis; Sissel Löseth; Flavia Machado; Antonio Maldonado; Carmen Martinez-Aparicio; Arne Sandberg; Benn Smith; Johan Widenfalk; João Aris Kouyoumdjian

doi:10.1002/mus.24750

Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study

Erik Stålberg, Donald B. Sanders, Sajjad Ali, Gerald Cooray, Lea Leonardis, Sissel Löseth, Flavia Machado, Antonio Maldonado, Carmen Martinez-Aparicio, Arne Sandberg, Benn Smith, Johan Widenfalk, João Aris Kouyoumdjian

Neurology

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Introduction: The aim of this study was to create reference values for jitter measured with concentric needle electrodes. Methods: Operators worldwide contributed recordings from orbicularis oculi (OO), frontalis (FR), and extensor digitorum (ED) muscles in healthy controls. Criteria for acceptable signal quality were agreed upon in advance. Fifteen or 20 recordings of acceptable quality from each muscle were required for voluntary and electrical stimulation recordings, respectively. Results: Recordings from 59 to 92 subjects were obtained for each muscle and activation type. Outlier limits for mean consecutive difference and individual jitter data for voluntary activation were: OO, 31 and 45 μs; FR, 28 and 38 μs; ED, 30 and 43 μs; and for electrical stimulation they were: OO, 27 and 36 μs; FR, 21 and 28 μs; ED, 24 and 35 μs. Conclusion: Reference jitter values from concentric needle electrode recordings were developed from signals of defined quality while seeking to avoid creating supernormal values.

Original language	English (US)
Pages (from-to)	351-362
Number of pages	12
Journal	Muscle and Nerve
Volume	53
Issue number	3
DOIs	https://doi.org/10.1002/mus.24750
State	Published - Mar 1 2016

Keywords

Concentric needle electrode
Healthy controls
Jitter
Reference material
SFEMG

ASJC Scopus subject areas

Physiology
Clinical Neurology
Cellular and Molecular Neuroscience
Physiology (medical)

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Stålberg, E., Sanders, D. B., Ali, S., Cooray, G., Leonardis, L., Löseth, S., Machado, F., Maldonado, A., Martinez-Aparicio, C., Sandberg, A., Smith, B., Widenfalk, J., & Aris Kouyoumdjian, J. (2016). Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study. Muscle and Nerve, 53(3), 351-362. https://doi.org/10.1002/mus.24750

Stålberg, E, Sanders, DB, Ali, S, Cooray, G, Leonardis, L, Löseth, S, Machado, F, Maldonado, A, Martinez-Aparicio, C, Sandberg, A, Smith, B, Widenfalk, J & Aris Kouyoumdjian, J 2016, 'Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study', Muscle and Nerve, vol. 53, no. 3, pp. 351-362. https://doi.org/10.1002/mus.24750

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abstract = "Introduction: The aim of this study was to create reference values for jitter measured with concentric needle electrodes. Methods: Operators worldwide contributed recordings from orbicularis oculi (OO), frontalis (FR), and extensor digitorum (ED) muscles in healthy controls. Criteria for acceptable signal quality were agreed upon in advance. Fifteen or 20 recordings of acceptable quality from each muscle were required for voluntary and electrical stimulation recordings, respectively. Results: Recordings from 59 to 92 subjects were obtained for each muscle and activation type. Outlier limits for mean consecutive difference and individual jitter data for voluntary activation were: OO, 31 and 45 μs; FR, 28 and 38 μs; ED, 30 and 43 μs; and for electrical stimulation they were: OO, 27 and 36 μs; FR, 21 and 28 μs; ED, 24 and 35 μs. Conclusion: Reference jitter values from concentric needle electrode recordings were developed from signals of defined quality while seeking to avoid creating supernormal values.",

keywords = "Concentric needle electrode, Healthy controls, Jitter, Reference material, SFEMG",

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doi = "10.1002/mus.24750",

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AU - Leonardis, Lea

AU - Löseth, Sissel

AU - Machado, Flavia

AU - Maldonado, Antonio

AU - Martinez-Aparicio, Carmen

AU - Sandberg, Arne

AU - Smith, Benn

AU - Widenfalk, Johan

AU - Aris Kouyoumdjian, João

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N2 - Introduction: The aim of this study was to create reference values for jitter measured with concentric needle electrodes. Methods: Operators worldwide contributed recordings from orbicularis oculi (OO), frontalis (FR), and extensor digitorum (ED) muscles in healthy controls. Criteria for acceptable signal quality were agreed upon in advance. Fifteen or 20 recordings of acceptable quality from each muscle were required for voluntary and electrical stimulation recordings, respectively. Results: Recordings from 59 to 92 subjects were obtained for each muscle and activation type. Outlier limits for mean consecutive difference and individual jitter data for voluntary activation were: OO, 31 and 45 μs; FR, 28 and 38 μs; ED, 30 and 43 μs; and for electrical stimulation they were: OO, 27 and 36 μs; FR, 21 and 28 μs; ED, 24 and 35 μs. Conclusion: Reference jitter values from concentric needle electrode recordings were developed from signals of defined quality while seeking to avoid creating supernormal values.

AB - Introduction: The aim of this study was to create reference values for jitter measured with concentric needle electrodes. Methods: Operators worldwide contributed recordings from orbicularis oculi (OO), frontalis (FR), and extensor digitorum (ED) muscles in healthy controls. Criteria for acceptable signal quality were agreed upon in advance. Fifteen or 20 recordings of acceptable quality from each muscle were required for voluntary and electrical stimulation recordings, respectively. Results: Recordings from 59 to 92 subjects were obtained for each muscle and activation type. Outlier limits for mean consecutive difference and individual jitter data for voluntary activation were: OO, 31 and 45 μs; FR, 28 and 38 μs; ED, 30 and 43 μs; and for electrical stimulation they were: OO, 27 and 36 μs; FR, 21 and 28 μs; ED, 24 and 35 μs. Conclusion: Reference jitter values from concentric needle electrode recordings were developed from signals of defined quality while seeking to avoid creating supernormal values.

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Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study

Abstract

Keywords

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