EFFECTS OF SINGLE PINNA REFLEX AND DYNAMIC STRETCH ON SPIKE DISCHARGES OF CAUDATE MUSCLE SPINDLE NERVES IN RAT

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BARGHI E.; PAKDAMAN H.; MOHAMMADI HADI

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Journal: Current Journal of Neurology Year:2010 | Volume:8 | Issue:28 Page(s): 588-596

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Title

EFFECTS OF SINGLE PINNA REFLEX AND DYNAMIC STRETCH ON SPIKE DISCHARGES OF CAUDATE MUSCLE SPINDLE NERVES IN RAT

Author(s)

BARGHI E. | PAKDAMAN H. | MOHAMMADI HADI | Issue Writer Certificate

Keywords

SPINDLE IAQ1

IIQ1

AND γ AXONSQ1

SPIKE POTENTIAL AMPLITUDEQ1

PINNA REFLEXQ1

DYNAMIC STRETCHQ1

Abstract

Introduction: The gd motor axons that innervate the muscle spindle fibers could induce the excitation of spindle nerves. The purpose of this study was comparing the quality effects of PINNA REFLEX (PR) and DYNAMIC STRETCH (DS) on the discharges and amplitudes of spike potentials (SPs) of SPINDLE IA, II, and gd axons in rat.Methods and Materials: The experimental study on the SPs discharges of 45 single caudate muscle spindle afferents and gd axons from the left side L5 roots were recorded at rest and during testing15 adult normal rats by PR and by DS. The comparison among the means SPs amplitudes of Ia, II, and gd axons in the resting discharge (RD) and after applying the PR and the DS were investigated by measuring their amplitudes.Results: The SPs amplitudes of Ia (72±5.34mv), II (38±3.27mv), and gd (62±4.29mv) were calculated in the RD. The obtained mean SPs amplitude difference was21% for Ia and7.7% for II; in the DS more than in the PR. The SPs of Ia and II made some overlaps by using the two stimula. The gd SPs followed the SPs of Ia and II during the PR whereas this case didn’t occur for the spindle axons during the DS. The mean SPs amplitude difference of gd in the DS was 85% less than in the PR.Conclusion: The DS (independent to gd SPs) was as distinctive stimulus for exciting of single Ia and II fibers as the PR (dependent to gd SPs). The gd showed strong inactivity by the DS. These results would be playing role in controling the movement disorders.

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APA: Copy

BARGHI, E., PAKDAMAN, H., & MOHAMMADI, HADI. (2010). EFFECTS OF SINGLE PINNA REFLEX AND DYNAMIC STRETCH ON SPIKE DISCHARGES OF CAUDATE MUSCLE SPINDLE NERVES IN RAT. CURRENT JOURNAL OF NEUROLOGY (IRANIAN JOURNAL OF NEUROLOGY), 8(28), 588-596. SID. https://sid.ir/paper/102834/en

Vancouver: Copy

BARGHI E., PAKDAMAN H., MOHAMMADI HADI. EFFECTS OF SINGLE PINNA REFLEX AND DYNAMIC STRETCH ON SPIKE DISCHARGES OF CAUDATE MUSCLE SPINDLE NERVES IN RAT. CURRENT JOURNAL OF NEUROLOGY (IRANIAN JOURNAL OF NEUROLOGY)[Internet]. 2010;8(28):588-596. Available from: https://sid.ir/paper/102834/en

IEEE: Copy

E. BARGHI, H. PAKDAMAN, and HADI MOHAMMADI, “EFFECTS OF SINGLE PINNA REFLEX AND DYNAMIC STRETCH ON SPIKE DISCHARGES OF CAUDATE MUSCLE SPINDLE NERVES IN RAT,” CURRENT JOURNAL OF NEUROLOGY (IRANIAN JOURNAL OF NEUROLOGY), vol. 8, no. 28, pp. 588–596, 2010, [Online]. Available: https://sid.ir/paper/102834/en

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