•  
  •  
 

Rehabilitation Practice and Science

Translated Title

低能量雷射照射對正中神經傳導速度的影響

Abstract

This study was aimed to find the difference of sensory and motor never conduction velosity (NCV) of median nerve before, and after the irradiation by Helium-Neon (HeNe) and Gallium arsenide (GaAs) laser upto 24 hours and the difference of effects induced by two different lasers- Twenty five healthy volunteers. 17 males and 8 females, with average age 25.2 years old. average body height 167.4 cm. were assigned randomly into two groups. Eleven voluteers received HeNe laser irradiation on right arm and GaAs laser on left arm. while the other 14 voluteers received laser vice versa. The irradiated sites were two points along the course of median nerve in forearm. 4 cm and 5 cmproximal to wrist crease respectively. Each point received either GaAs laser 7 mW/point or HeNe laser 8.5 mW/point for 4 minutes. The distal sensory, proximal sensory and motor NCV of bilateral median nerves were recorded before, immediately after, 4-hour and 24-hour after the laser irradiation. The study failed to reveal difference of NCV of median nerve before and after the HeNe and the GaAs laser irradiation. There was also no difference between the effect on NCV in two different lasers. In conclusion, the low power laser has no effect on the NCV of median nerve at therapeutic dosage of J/cm2 and the mechanism of pain relief induced by laser irradiation is probably not through the effect on alteration of nerve conduction.

Language

Traditional Chinese

First Page

9

Last Page

14

Download

Share

COinS