THE COMPARISON OF APPLICATION OF TWO DIFFERENT FREQUENCIES OF T.E.N.S ON EXCITABILITY OF HOFFMANN REFLEX

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BAGHERY H.; AKBARI M.; ALIAEI GHOLAM REZA; TALEBIAN S.; JAFARI S.

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Journal: TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ) Year:2001 | Volume:59 | Issue:3 Page(s): 30-37

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Title

THE COMPARISON OF APPLICATION OF TWO DIFFERENT FREQUENCIES OF T.E.N.S ON EXCITABILITY OF HOFFMANN REFLEX

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Keywords

TENSQ4

HOFFMANN REFLEXQ4

STIMULATION FREQUENCYQ4

Abstract

The aim of this investigation is to compare the effect of applying two transcutaneous electrical never stimulation (TENS) current with different frequencies (2 HZ & 100 HZ) on HOFFMANN REFLEX recorded from gastrosoleus muscle of healthy people. Forty female subjects between 20 to 30 years of age were participated in this quasi-experimental design. Twenty of them were exposed to the 100 HZ current and the remaining 20 to 2 HZ current on dermatome S1 root. The excitability of the alpha motoneurone was measured by H-reflex amplitude (peak to peak max/2) before and after the application of the TENS current for 30 minutes. The reflex was recorded and at measured before (TO) and after the application of TENS at different times (T1, T% and T10) up to 10 minutes. The mean values were compared by multiple paired T test (alpha=0.00825). The results indicate a considerable decrement in HOFFMANN REFLEX amplitutde after application of 100 HZ current in comparison with that of before the application. The effect last for 10 minutes after the TENS application, whereas the application of 2 HZ current results in increment of the HOFFMANN REFLEX amplitude. The 5 and 10 minutes interval test does not show any significancy and the results were attenuated before 5 minutes. As a conclusion high frequency of TENS (100 HZ) has an inhibitory effect on excitability of alpha motor neurone reflex lasting for 10 minutes, while low frequency of TENS (2 HZ) has an facilatory effect on the same motoneurone with short lasting effect.

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APA: Copy

BAGHERY, H., AKBARI, M., ALIAEI, GHOLAM REZA, TALEBIAN, S., & JAFARI, S.. (2001). THE COMPARISON OF APPLICATION OF TWO DIFFERENT FREQUENCIES OF T.E.N.S ON EXCITABILITY OF HOFFMANN REFLEX. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), 59(3), 30-37. SID. https://sid.ir/paper/38657/en

Vancouver: Copy

BAGHERY H., AKBARI M., ALIAEI GHOLAM REZA, TALEBIAN S., JAFARI S.. THE COMPARISON OF APPLICATION OF TWO DIFFERENT FREQUENCIES OF T.E.N.S ON EXCITABILITY OF HOFFMANN REFLEX. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ)[Internet]. 2001;59(3):30-37. Available from: https://sid.ir/paper/38657/en

IEEE: Copy

H. BAGHERY, M. AKBARI, GHOLAM REZA ALIAEI, S. TALEBIAN, and S. JAFARI, “THE COMPARISON OF APPLICATION OF TWO DIFFERENT FREQUENCIES OF T.E.N.S ON EXCITABILITY OF HOFFMANN REFLEX,” TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), vol. 59, no. 3, pp. 30–37, 2001, [Online]. Available: https://sid.ir/paper/38657/en

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