| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document

Title:Motor unit characteristics after targeted muscle reinnervation
Authors:ID Kapelner, Tamás (Author)
ID Jiang, Ning (Author)
ID Holobar, Aleš (Author)
ID Vujaklija, Ivan (Author)
ID Roche, Aidan (Author)
ID Farina, Dario (Author)
ID Aszmann, Oskar (Author)
Files:.pdf PLOS_ONE_2016_Kapelner_et_al._Motor_Unit_Characteristics_after_Targeted_Muscle_Reinnervation.PDF (1,51 MB)
MD5: 3031E55C4B6A839411C6094B912B2A32
 
URL http://dx.plos.org/10.1371/journal.pone.0149772
 
Language:English
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Targeted muscle reinnervation (TMR) is a surgical procedure used to redirect nerves originally controlling muscles of the amputated limb into remaining muscles above the amputation, to treat phantom limb pain and facilitate prosthetic control. While this procedure effectively establishes robust prosthetic control, there is little knowledge on the behavior and characteristics of the reinnervated motor units. In this study we compared the m. pectoralis of five TMR patients to nine able-bodied controls with respect to motor unit action potential (MUAP) characteristics. We recorded and decomposed high-density surface EMG signals into individual spike trains of motor unit action potentials. In the TMR patients the MUAP surface area normalized to the electrode grid surface (0.25 ± 0.17 and 0.81 ± 0.46, p < 0.001) and the MUAP duration (10.92 ± 3.89 ms and 14.03 ± 3.91 ms, p < 0.01) were smaller for the TMR group than for the controls. The mean MUAP amplitude (0.19 ± 0.11 mV and 0.14 ± 0.06 mV, p = 0.07) was not significantly different between the two groups. Finally, we observed that MUAP surface representation in TMR generally overlapped, and the surface occupied by motor units corresponding to only one motor task was on average smaller than 12% of the electrode surface. These results suggest that smaller MUAP surface areas in TMR patients do not necessarily facilitate prosthetic control due to a high degree of overlap between these areas, and a neural information—based control could lead to improved performance. Based on the results we also infer that the size of the motor units after reinnervation is influenced by the size of the innervating motor neuron.
Keywords:target muscle reinnervation, motor unit, controlling muscles
Year of publishing:2016
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:str. 1-7
Numbering:Letn. 11, št. 2
PID:20.500.12556/DKUM-66284 New window
ISSN:1932-6203
UDC:004.8:61
ISSN on article:1932-6203
COBISS.SI-ID:19367702 New window
DOI:10.1371/journal.pone.0149772 New window
NUK URN:URN:SI:UM:DK:2K7LBTUS
Publication date in DKUM:19.06.2017
Views:1008
Downloads:357
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:Misc.
:
Kopiraj citat
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:PloS one
Publisher:Public Library of Science
ISSN:1932-6203
COBISS.SI-ID:2005896 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:19.06.2017

Secondary language

Language:Slovenian
Keywords:ciljana mišična reinervacija, motorična enota, nadzor mišic


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica