15 Differing methods to measure VPT Method Technique Usefulness 128-Hz tuning fork Sensation normal(cf.hand/ Only to detect presence forehead,reduce or absent or absence of neuropathy Reidell-Seiffer graduated tuning fork Ascending method Coefficient of variation compares (Firma Martin, favorably with more complex Tuttlingen, Germany) techniques below Biothesiometer (Biomedical Instrument Ascending method Largely superseded by Newbury, OH) Neurothesiometer Neurothesiometer (Arnold Howrwell, Ascending method Currently most widely used.
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