uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Motor unit number index: Guidelines for recording signals and their analysis
Natus Med Inc, Hopewell Jct, NY USA.
Med Coll Wisconsin, Milwaukee, WI 53226 USA.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology. Univ Hosp, Uppsala, Sweden.
Kantonsspital St Gallen, St Gallen, Switzerland.
Show others and affiliations
2018 (English)In: Muscle and Nerve, ISSN 0148-639X, E-ISSN 1097-4598, Vol. 58, no 3, p. 374-380Article in journal (Refereed) Published
Abstract [en]

Introduction: This study proposes guidelines for motor unit number index (MUNIX) recording and analysis. Methods: MUNIX was measured in control participants and in patients with amyotrophic lateral sclerosis. Changes in MUNIX values due to E1 electrode position, number of surface electromyography interference pattern (SIP) epochs, SIP epoch duration, force of contraction, and outlier data points were investigated. Results: MUNIX depends on optimized compound muscle action potential (CMAP) amplitude. Individual muscles showed variations when the number of epochs was low or when the SIP duration was short. Longer SIP duration allowed better recognition of artifacts. MUNIX results were affected by SIP values at all force levels but was more affected when SIP area was low. Discussion: We recommend changing the E1 electrode position to maximize CMAP amplitude. Twenty or more SIP signals of 500-ms duration should be recorded by using force levels ranging from slight to maximum. Traces should be reviewed to identify and exclude signals with tremor or solitary spikes.

Place, publisher, year, edition, pages
2018. Vol. 58, no 3, p. 374-380
Keywords [en]
artifacts, compound muscle action potential, guidelines, motor unit number index, MUNIX, surface EMG interference pattern, tremor
National Category
Physiology
Identifiers
URN: urn:nbn:se:uu:diva-365670DOI: 10.1002/mus.26099ISI: 000444079300009PubMedID: 29427557OAI: oai:DiVA.org:uu-365670DiVA, id: diva2:1263175
Available from: 2018-11-14 Created: 2018-11-14 Last updated: 2018-11-14Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Authority records BETA

Stålberg, Erik

Search in DiVA

By author/editor
Stålberg, Erik
By organisation
Clinical Neurophysiology
In the same journal
Muscle and Nerve
Physiology

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 12 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf