Clinical applications of power spectral analysis of electromyographic investigations in muscle function

Joseph Kim Fai Ng, C. A. Richardson, V. Kippers, M. Parnianpour, B. H. Bui

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


Electromyographic (EMG) power spectral analysis of the electrical signals produced by a contracting muscle is emerging as a useful clinical tool. It has the potential to measure objectively the fatigue rate of individual muscles during an exertion. This technical note gives a simple introduction to the spectral changes of the EMG signals during fatigue. It outlines the technical aspects of EMG investigations including the data collection, signal analysis and its interpretation. The clinical applications, its present limitations and future applications are also given. The correct use and interpretation of the power spectral analysis in the clinical environment is important for its further development as a clinical measurement.
Original languageEnglish
Pages (from-to)99-103
Number of pages5
JournalManual Therapy
Issue number2
Publication statusPublished - 1 Jan 1996
Externally publishedYes

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation

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