Increased H-reflex response induced by intramuscular electrical stimulation of latent myofascial trigger points

Acupuncture in Medicine : Journal of the British Medical Acupuncture Society
Hong-You GeL Arendt-Nielsen

Abstract

Myofascial trigger points (MTrPs) present with mechanical hyperalgesia and allodynia. No electrophysiological evidence exists as to the excitability of muscle spindle afferents at myofascial trigger points MTrPs. The purpose of this current study was to explore whether an H-reflex response could be elicited from intramuscular electrical stimulation. If so, to assess the possibility of increased reflex response at MTrPs. The H-reflex latency and the conduction velocity were first determined from electrical stimulation of the tibial nerve in 13 healthy subjects. Then an intramuscular monopolar needle electrode was inserted randomly into a latent MTrP or a non-MTrP in the gastrocnemius muscle. Electrical stimuli at different intensities were delivered via the intramuscular recording electrode to the MTrP or non-MTrP. The average conduction velocity (44.3 +/- 1.5 m/s) of the electrical stimulation of tibial nerve was similar (p>0.05) with the conduction velocity (43.9 +/- 1.4 m/s) of intramuscular electrical stimulation. The intramuscular H-reflex at MTrPs was higher in amplitude than non-MTrPs (p<0.001). The reflex threshold was lower for MTrPs than non-MTrPs (p<0.001). The current study provides first electrophysiological evidenc...Continue Reading

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Citations

May 12, 2011·Current Pain and Headache Reports·Hong-You Ge, Lars Arendt-Nielsen
Nov 2, 2012·The Journal of Manual & Manipulative Therapy·Jan Dommerholt
Nov 23, 2013·Current Rheumatology Reports·César Fernández-de-las-Peñas, Jan Dommerholt
Mar 18, 2015·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Lars Arendt-Nielsen, Matteo Castaldo
Feb 13, 2014·Physiology & Behavior·Sergio M BorghiWaldiceu A Verri
Apr 22, 2015·Journal of Bodywork and Movement Therapies·Jan Dommerholt, Robert D Gerwin
Mar 5, 2017·The Journal of Orthopaedic and Sports Physical Therapy·Kindyle L BrennanYolanda Munoz Maldonado
Sep 7, 2017·Muscle & Nerve·Ozden KilincKayihan Uluc
May 15, 2015·Acupuncture in Medicine : Journal of the British Medical Acupuncture Society·Qiang-Min HuangLin Liu
Nov 28, 2009·Acupuncture in Medicine : Journal of the British Medical Acupuncture Society·Mike Cummings
Nov 30, 2020·Journal of Manipulative and Physiological Therapeutics·Jennifer F MullinsArthur J Nitz
Jan 23, 2021·Journal of Clinical Neurology·Mohamed N ThabitSaber Hadad
Nov 22, 2020·Journal of Bodywork and Movement Therapies·Jan DommerholtOrlando Mayoral
Jan 29, 2020·Acupuncture in Medicine : Journal of the British Medical Acupuncture Society·Adelaida María Castro-SánchezGuillermo Adolfo Matarán-Peñarrocha
Jan 18, 2020·Acupuncture in Medicine : Journal of the British Medical Acupuncture Society·Lin LiuCheng-Zhi Bo
Jul 22, 2021·Acupuncture in Medicine : Journal of the British Medical Acupuncture Society·Carolina Jiménez-SánchezMaria Ortiz-Lucas

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