Basic concepts of needle electromyography

  • Kim, Jee-Eun (Department of Neurology, Seoul Medical Center) ;
  • Seok, Jin Myoung (Department of Neurology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine) ;
  • Ahn, Suk-Won (Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine) ;
  • Yoon, Byung-Nam (Department of Neurology, Seoul Paik Hospital, Inje University College of Medicine) ;
  • Lim, Young-Min (Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kim, Kwang-Kuk (Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kwon, Ki-Han (Department of Neurology, Hallym University Dongtan Sacred Heart Hospital) ;
  • Park, Kee Duk (Department of Neurology, Mokdong Hospital, Ewha Womans University School of Medicine) ;
  • Suh, Bum Chun (Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine) ;
  • Korean Society of Clinical Neurophysiology Education Committee (Korean Society of Clinical Neurophysiology)
  • Received : 2018.06.28
  • Accepted : 2018.07.04
  • Published : 2019.01.31


Clinical evaluations, nerve conduction studies, and electromyography play major complementary roles in electrophysiologic diagnoses. Electromyography can be used to assess pathologic changes and localize lesions occurring in locations ranging from motor units to anterior-horn cells. Successfully performing electromyography requires knowledge of the anatomy, physiology, and pathology of the peripheral nervous system as well as sufficient skill and interpretation ability. Electromyography techniques include acquiring data from visual/auditory signals and performing needle positioning, semiquantitation, and interpretation. Here we introduce the basic concepts of electromyography to guide clinicians in performing electromyography appropriately.


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