Variability in commercial electromyographic biofeedback devices

John D Rugh, Robert L. Schwitzgebel

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the functional characteristics of a sample of commercial electromyographic feedback devices for the purpose of determining variability between instruments. Seventeen physical and functional characteristics (such as input impedance, filter bandwidth, and sensitivity) were evaluated on a sample of 11 instruments. Wide variability was found in several important functional characteristics. Input impedance, for example, was found to vary from 13K to more than 1 megohm and filter bandwidths ranged from 55 Hz to 2,600 Hz. Such variability makes the comparison of data from studies using different instruments quite difficult; it also suggests the need to develop equipment standards and common calibration procedures.

Original languageEnglish (US)
Pages (from-to)281-285
Number of pages5
JournalBehavior Research Methods & Instrumentation
Volume9
Issue number3
DOIs
StatePublished - May 1977
Externally publishedYes

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Electric Impedance
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ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Psychology (miscellaneous)
  • Psychology(all)

Cite this

Variability in commercial electromyographic biofeedback devices. / Rugh, John D; Schwitzgebel, Robert L.

In: Behavior Research Methods & Instrumentation, Vol. 9, No. 3, 05.1977, p. 281-285.

Research output: Contribution to journalArticle

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