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PubMed · 2406397

Reliability of sensory threshold measurement using a digital vibrogram.

B K Grunert·J J Wertsch·H S Matloub·S McCallum-Burke
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Abstract

Loss of vibratory sensation has been suggested as an early symptom in the diagnosis of compression neuropathies. The use of a digital vibrogram has recently been examined as a means of evaluating vibratory sensation thresholds over a range of frequencies from 8 to 500 Hz. Although this instrument does yield useful clinical information, little is known about the test-retest reliabilities of the thresholds obtained. To learn more about this, we assessed a total of 76 hands--32 normal and 44 with suspected carpal tunnel syndrome. The average sensory thresholds for onset and cessation of vibratory sensation were obtained. Pearson product-moment correlation coefficients were computed, and demonstrated improvement if an initial practice trial was administered. Our findings suggest that the vibrogram can be a reliable, clinical assessment when an initial practice trial is included as part of the standard administration.

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Carpal Tunnel SyndromeClinical Trials as TopicEquipment DesignFemaleHandHumansMaleReproducibility of ResultsSensory ThresholdsVibrationClinical TrialJournal Article

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B K Grunert, J J Wertsch, H S Matloub, S McCallum-Burke. 1990. Reliability of sensory threshold measurement using a digital vibrogram.. https://pubmed.ncbi.nlm.nih.gov/2406397/

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