Vibration sensitivity testing with tuning fork—256 Hz or 512 Hz?
Outcome measures of vibratory sensitivity using a 256-Hz tuning fork depend on the perception of vibration by the patient and qualitative comparison with sensory threshold on the examiner. The authors present their experience of comparison of vibratory sensation using a 512-Hz tuning fork with the conventional 256-Hz counterpart in normal volunteers. The median visual analogue score achieved by the 512-Hz tuning fork was the same as the 256-Hz one in all the tested areas of the hand. The 512-Hz tuning fork is smaller and easier to carry and is more advantageous compared to the 256-Hz one. The authors strongly recommend the use of the 512-Hz tuning fork for the vibration sensitivity test.
KeywordsVibration Tuning fork Sensation
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