umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • 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
Incidence of F waves in single human thenar motor units.
University of Miami School of Medicine.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology.
Yale University Medical School, New Haven, Connecticut.
2002 (English)In: Muscle and Nerve, ISSN 0148-639X, E-ISSN 1097-4598, Vol. 25, no 1, 77-82 p.Article in journal (Refereed) Published
Abstract [en]

F-wave generation, axon conduction velocities, and contractile properties were compared in 44 healthy individual human thenar motor units. Force and muscle action potentials were recorded when single motor axons were stimulated intraneurally about 10 cm proximal to the elbow. Each stimulus usually evoked only one electromyographic (EMG) potential. However, in seven units (16%), a single stimulus elicited an F wave in response to 1.7 +/- 1.6% (mean +/- SD) of the stimuli applied. Axon conduction velocity proximal to the site of stimulation was faster than distal conduction velocity (72.7 +/- 8.0 m/s versus 64.2 +/- 10.5 m/s). Distal conduction velocities, twitch forces, and contraction times were similar for units that did and did not generate F waves. Thus, no obvious subset of thenar motor units generated F waves. These results provide valuable baseline information on F waves that can be used to assess changes in axon conduction, motor unit contractile properties, and motoneuron excitability in disease.

Place, publisher, year, edition, pages
2002. Vol. 25, no 1, 77-82 p.
National Category
Physiology
Identifiers
URN: urn:nbn:se:umu:diva-82525PubMedID: 11754188OAI: oai:DiVA.org:umu-82525DiVA: diva2:661798
Available from: 2013-11-05 Created: 2013-11-05 Last updated: 2017-12-06

Open Access in DiVA

No full text

PubMed

Search in DiVA

By author/editor
Johansson, Roland S
By organisation
Physiology
In the same journal
Muscle and Nerve
Physiology

Search outside of DiVA

GoogleGoogle Scholar

pubmed
urn-nbn

Altmetric score

pubmed
urn-nbn
Total: 38 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • 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