THE EFFECTS OF ELECTRICAL NERVE STIMULATION OF THE LOWER EXTREMITY ON H-REFLEX AND F-WAVE PARAMETERS

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BAGHERI H.; OLYAIE GH.R.; JOUDAKI M.R.

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Journal: KOWSAR MEDICAL JOURNAL Year:2001 | Volume:6 | Issue:part 3 Page(s): 155-164

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Title

THE EFFECTS OF ELECTRICAL NERVE STIMULATION OF THE LOWER EXTREMITY ON H-REFLEX AND F-WAVE PARAMETERS

Author(s)

BAGHERI H. | OLYAIE GH.R. | JOUDAKI M.R. | Issue Writer Certificate

Keywords

H-REFLEX

F-WAVE

ELECTRICAL STIMULATION

TENS

SPASTICITY

Abstract

The main purpose of this study was to investigate the effects of electrical nerve stimulation on alpha motoneuron excitability. The electrophysiological parameters of H-REFLEX and F-WAVE were assessed. The experiment was performed on ten non-athletic healthy men without neurologic disorders with a mean age 25.6 ± 4.4 years and three spastic hemiplegic patients with a mean age 65.33 ± 6.32 years. In the experimental protocol electrical simulation (TENS) applied on common peroneal nerves with a frequency of 99 Hz and pulse width (duration) 250 µs of 30 minutes. H-REFLEX and F-wave of the soleus muscle were recorded in three stages sequenced immediately, 5 minutes and 10 minutes later. The parameters such as amplitudes and latencies of H-REFLEX and F-WAVE were compared with the data before stimulation. Finally, after 30 minutes application of TENS the following results were obtained: 1-The mean peak to peak amplitude of H-REFLEXes and F-WAVEs were significantly decreased after application of TENS in normal subjects. (P<0.05) 2-H/M ratios and FIM ratios were significantly decreased after application of TENS in normal subjects. (P<0.05) 3-The mean latency of H-retlexes and F-WAVEs were significantly increased after application of TENS in normal subjects. (P < 0.05) 4-In spastic patients, the mean peak to peak amplitude of H-REFLEXes and F-WAVEs, and the H/M and F/M ratios were significantly decreased and the mean latencies of H-REFLEXes and F-WAVEs were significantly increased after application of TENS. The reduction of amplitude of H-REFLEXes and F-WAVEs, H/M and F/M ratios demonstrated reduction of SPASTICITY in the patients group. The above-mentioned parameters are parts of electrophysiological indicators of SPASTICITY.

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APA: Copy

BAGHERI, H., OLYAIE, GH.R., & JOUDAKI, M.R.. (2001). THE EFFECTS OF ELECTRICAL NERVE STIMULATION OF THE LOWER EXTREMITY ON H-REFLEX AND F-WAVE PARAMETERS. KOWSAR MEDICAL JOURNAL, 6(part 3), 155-164. SID. https://sid.ir/paper/531530/en

Vancouver: Copy

BAGHERI H., OLYAIE GH.R., JOUDAKI M.R.. THE EFFECTS OF ELECTRICAL NERVE STIMULATION OF THE LOWER EXTREMITY ON H-REFLEX AND F-WAVE PARAMETERS. KOWSAR MEDICAL JOURNAL[Internet]. 2001;6(part 3):155-164. Available from: https://sid.ir/paper/531530/en

IEEE: Copy

H. BAGHERI, GH.R. OLYAIE, and M.R. JOUDAKI, “THE EFFECTS OF ELECTRICAL NERVE STIMULATION OF THE LOWER EXTREMITY ON H-REFLEX AND F-WAVE PARAMETERS,” KOWSAR MEDICAL JOURNAL, vol. 6, no. part 3, pp. 155–164, 2001, [Online]. Available: https://sid.ir/paper/531530/en

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