Effect of High Frequency Vibration on Nerve Excitability

Authors

Jeng-Feng Yang
Wen-Shuan Liao
Chang-Zern Hong

Translated Title

高頻振動引發神經興奮之效應

Abstract

The effect of vibration on the median nerve excitability was studied in 18 healthy subjects by applying the vibrator on the skin overlying either the median nerve or the tendon of flexor digitorum superficialis. The excitability index (EI) was used to assess the median nerve excitability. This index was expressed as the ratio of the amplitude of submaximal evoked compound action potentials (SECAP) before vibration (baseline level) to that during or after the vibration. Comparison between the experimental and the control side showed that vibration over the median nerve did not induce any significant change of EI. However, vibration over the tendon of flexor digitorum superficialis elicited a significant increase of median nerve excitability. In conclusion, the nerve excitability was increased in response to the vibration applied over the tendon, but not over the nerve itself. Activation of the tonic vibration reflex was the probable mechanism.

Language

English

First Page

7

Last Page

14

Recommended Citation

Yang, Jeng-Feng; Liao, Wen-Shuan; and Hong, Chang-Zern (1999) "Effect of High Frequency Vibration on Nerve Excitability," Rehabilitation Practice and Science: Vol. 27: Iss. 1, Article 2.
DOI: https://doi.org/10.6315/3005-3846.2061
Available at: https://rps.researchcommons.org/journal/vol27/iss1/2