"Facial" and standard concentric needle electrodes are not interchangeable. Electromyogr Clin Neurophysiol 2006 Sep;46(5):259-61
Date
10/25/2006Pubmed ID
17059096Scopus ID
2-s2.0-33749338410 (requires institutional sign-in at Scopus site) 4 CitationsAbstract
Motor unit action potentials (MUAPs) were recorded using a standard concentric needle (SCN), a "facial" concentric needle (FCN) and a monopolar needle (MN) in the biceps brachii and first dorsal interosseous manus muscles of 7 normal subjects. For each muscle, the MUAP durations were similar for all electrodes. However, the FCN electrode more frequently registered high-amplitude MUAPs compared to the SCN electrode. Hence, the FCN and SCN needles should not be considered interchangeable in assessment of EMG signal amplitude. Although, the pattern of changes in amplitude and duration on FCN and MN recordings is similar, the electrodes have different uptake areas.
Author List
Barkhaus PE, Roberts MM, Nandedkar SDAuthor
Paul E. Barkhaus MD Professor in the Neurology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
Action PotentialsAdult
Arm
Electrodes
Electromyography
Equipment Design
Female
Humans
Male
Middle Aged
Muscle, Skeletal
Needles
Reference Values
Reproducibility of Results
