Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/68097
標題: Spinal Cord Mechanism Involving the Remote Effects of Dry Needling on the Irritability of Myofascial Trigger Spots in Rabbit Skeletal Muscle
作者: Hsieh, Y.L.
Chou, L.W.
Joe, Y.S.
Hong, C.Z.
關鍵字: Electromyography
Myofascial trigger spot
Needle stick
Neural pathway
Rehabilitation
spontaneous electrical-activity
end-plate noise
upper trapezius
muscle
acupuncture
point
pain
stimulation
common
mtrps
rats
期刊/報告no:: Archives of Physical Medicine and Rehabilitation, Volume 92, Issue 7, Page(s) 1098-1105.
摘要: Hsieh Y-L, Chou L-W, Joe Y-S, Hong C-Z. Spinal cord mechanism involving the remote effects of dry needling on the irritability of myofascial trigger spots in rabbit skeletal muscle. Arch Phys Med Rehabil 2011;92:1098-105. Objective: To elucidate the neural mechanisms underlying the remote effects produced by dry needling rabbit skeletal muscle myofascial trigger spots (MTrSs) via analyses of their endplate noise (EPN) recordings. Design: Experimental animal controlled trial. Setting: An animal laboratory of a university. Animals: Male New Zealand rabbits (N=96) (body weight, 2.5-3.0kg; age, 16-20wk). Intervention: Animals received no intervention for neural interruption in group I, transection of the tibial nerve in group II, transection of L5 and L6 spinal cord in group III, and transection of the T 1 and T2 spinal cord in group IV. Each group was further divided into 4 subgroups: animals received ipsilateral dry needling, contralateral dry needling, ipsilateral sham needling, or contralateral sham needling of gastrocnemius MTrSs. Main Outcome Measures: EPN amplitudes of biceps femoris (BF) MTrSs. Results: BF MTrS mean EPN amplitudes significantly increased (P<.05) initially after gastrocnemius verum needling but reduced to a level significantly lower (P<.05) than the preneedling level in groups I and IV with ipsilateral dry needling or contralateral dry needling, and in group II with contralateral dry needling (but not ipsilateral dry needling). No significant EPN amplitude changes were observed in BF MTrS in group III or in the control animals receiving superficial needling (sham). Conclusion: This remote effect of dry needling depends on an intact afferent pathway from the stimulating site to the spinal cord and a normal spinal cord function at the levels corresponding to the innervation of the proximally affected muscle.
URI: http://hdl.handle.net/11455/68097
ISSN: 0003-9993
文章連結: http://dx.doi.org/10.1016/j.apmr.2010.11.018
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