THE EFFECTS OF INFRA - RED LOW POWER LASER RADIATION ON SENSORY AND MOTOR ELECTRONEUROGRAPHIC PARAMETERS OF MEDIAN NERVE

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HEYDARABADI AFSHIN; EBRAHIMI TAKAMJANI E.; FOROUGH B.; MAROUFI N.; SALAVATI MAHYAR

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Journal: Razi Journal of Medical Sciences Year:2001 | Volume:7 | Issue:22 Page(s): 262-266

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Title

THE EFFECTS OF INFRA - RED LOW POWER LASER RADIATION ON SENSORY AND MOTOR ELECTRONEUROGRAPHIC PARAMETERS OF MEDIAN NERVE

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Keywords

LOW POWER LASERQ2

MEDIAN NERVEQ3

ELECTRONEUROGRAPHIC PARAMETERSQ4

Abstract

The Purposes of this study were to:1- Determine the effects of infra-red (I-R) Laser radiation on Sensory and motor ELECTRONEUROGRAPHIC PARAMETERS of nerve including latency, amplitude, and duration of Action Potential.2- Determine the effects of I-R Laser radiation on skin temperature changes.Forty healthy male subjects ranging from 20 to 30 years of age without any history of pathological condition of no dominant upper extremity were studied. It was a single blind study in which subjects randomly received laser radiation in both ways of real (power output=10 mw) and placebo (power output =0).The parameters of I-R laser were wavelength= 780 mm, power output= 10 mw and continues mode. An orthodromic sensory and motor conduction study was performed on the MEDIAN NERVE for each subject.Four 1 cm2 blocks were plotted on the skin along the superficial MEDIAN NERVE, where laser was radiated at 60 sec/cm2 per block. Latency, amplitude, duration and skin temperature measurements were recorded pre test, immediately post test, and post intervals of 10 and 20 minutes. To examine the data, paired t-test with repeated measures were performed.Results:- No significant changes were noted in the placebo method.For real laser radiation method:- Significant increase was noted in distal sensory latency.(p1 =2.54 x 10-6) (p2=1.91 x 10-3),(p3=1.57 x 10-3)- Significant increase was noted in distal motor latency.(P1 =2.49 x 10-4) (p2 = 1.06 x 10-3) (p3=4.3 x 10-3)- Significant decrease was noted in sensory amplitude. (P1=1.75 x 10-4 (p2 = 9.35 x 10-3), (p3=8.7 x 104)- No significant changes were noted in motor amplitude. sensory and motor duration and skin temperature. Discussion:This study showed that low power I-R laser radiation would cause latency in MEDIAN NERVE conduction.

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APA: Copy

HEYDARABADI, AFSHIN, EBRAHIMI TAKAMJANI, E., FOROUGH, B., MAROUFI, N., & SALAVATI, MAHYAR. (2001). THE EFFECTS OF INFRA - RED LOW POWER LASER RADIATION ON SENSORY AND MOTOR ELECTRONEUROGRAPHIC PARAMETERS OF MEDIAN NERVE. RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES), 7(22), 262-266. SID. https://sid.ir/paper/10018/en

Vancouver: Copy

HEYDARABADI AFSHIN, EBRAHIMI TAKAMJANI E., FOROUGH B., MAROUFI N., SALAVATI MAHYAR. THE EFFECTS OF INFRA - RED LOW POWER LASER RADIATION ON SENSORY AND MOTOR ELECTRONEUROGRAPHIC PARAMETERS OF MEDIAN NERVE. RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2001;7(22):262-266. Available from: https://sid.ir/paper/10018/en

IEEE: Copy

AFSHIN HEYDARABADI, E. EBRAHIMI TAKAMJANI, B. FOROUGH, N. MAROUFI, and MAHYAR SALAVATI, “THE EFFECTS OF INFRA - RED LOW POWER LASER RADIATION ON SENSORY AND MOTOR ELECTRONEUROGRAPHIC PARAMETERS OF MEDIAN NERVE,” RAZI JOURNAL OF MEDICAL SCIENCES (JOURNAL OF IRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 7, no. 22, pp. 262–266, 2001, [Online]. Available: https://sid.ir/paper/10018/en

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