Spontaneous Electrical Activity at Combined Acupuncture and Myofascial Trigger Point Sites

1996 ◽  
Vol 14 (2) ◽  
pp. 75-79 ◽  
Author(s):  
Adam A Ward

Small, localised areas of spontaneous electrical activity were found at combined acupuncture and myofascial trigger point sites, corresponding to Gall Bladder 21 in the Trapezius and Small Intestine 11 in the Infraspinatus, in patients with active myofascial neck and shoulder pain. The monopolar needle EMG techniques used to assess spontaneous electrical activity offer the possibility of providing an objective measure of both point activity and the effects of therapeutic intervention. Further studies are needed to examine not just the painful lesion itself, but its dynamic relationship with its corresponding spinal segment and associated higher centres. There are important similarities between acupuncture pain points and trigger points, and observations of both can be used profitably in further studies of myofascial pain and dysfunction.

2006 ◽  
Vol 24 (2) ◽  
pp. 61-70 ◽  
Author(s):  
Joanne Macgregor ◽  
Dietrich Graf von Schweinitz

Background Myofascial trigger points are commonly described in humans, and many studies have shown abnormal spontaneous electrical activity, spike activity and local twitch responses at these sites. Myofascial trigger points have only rarely been described in horses, and studies of their electrophysiological characteristics have not previously been published. The objective of this study was to explore the electromyographic (EMG) and other characteristics of myofascial trigger points in equine muscle, and to compare them with normal muscle tissue. Methods Four horses with chronic pain signs and impaired performance were examined. They had previously been examined at the second author's practice, and showed signs compatible with the diagnosis of myofascial trigger points in their cleidobrachialis (brachiocephalic) muscle, ie localised tender spots in a taut band of skeletal muscle which produced a local twitch response on snapping palpation. They had therefore been selected for treatment with acupuncture. Needle EMG activity and twitch responses were recorded at 25 positions at the trigger point and at a nearby control point during the course of each horse's acupuncture treatment. Results All subjects demonstrated objective signs of spontaneous electrical activity, spike activity and local twitch responses at the myofascial trigger point sites within taut bands. The frequency of these signs was significantly greater at myofascial trigger points than at control sites (P<0.05). Conclusion Equine myofascial trigger points can be identified, and have similar objective signs and electrophysiological properties to those documented in human and rabbit skeletal muscle tissue. The important differences from findings in human studies are that referred pain patterns and the reproduction of pain profile cannot be determined in animals.


1994 ◽  
Vol 12 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Peter Baldry

It is not sufficiently well recognised that the reflex sympathetic dystrophy syndrome (RSDS) and the myofascial pain syndrome (MPS) may develop concomitantly. This happens because they have similar aetiological factors, with trauma being by far the commonest. Everyone is liable to develop nociceptor pain as a result of trauma-induced activation and sensitisation of C afferent skin and Group IV muscle nociceptors; also A-β mediated pain as a result of the sensory afferent barrage produced by these nociceptors giving rise to sensitisation of dorsal horn transmission neurones. With most people these neural changes lead only to the development of MPS. In a minority of people, possibly those with a genetically determined predisposition, this sensory afferent barrage also causes changes to take place in the sympathetic nervous system, with the development of a characteristic burning type of sympathetically mediated pain. This may develop alone or in association with myofascial trigger point pain. There is much controversy concerning the mechanisms for development of RSDS pain. One theory is that the pain develops as a result of the nociceptor-induced sensory afferent barrage setting up aberrant sympathetic efferent activity. This results in the release of noradrenaline which binds to α-1 adrenoreceptors in the walls of the nociceptors, exciting them further. Much research, however, still has to be done before the development of sympathetically maintained pain can be adequately explained. It is stressed that for the successful treatment of RSDS early diagnosis is essential. Treatment involves sympathetic blockade either by the injection of local anaesthetic into a sympathetic ganglion, or by the regional infusion of a catecholamine depleting drug. Sympathetically maintained pain is morphine resistant and is therefore unlikely to be relieved by acupuncture, the analgesic effect of which is mediated by opioid peptides. The main place for acupuncture is in the treatment of concomitant myofascial trigger point pain. It is emphasised that in all cases of RSDS it is essential to search for myofascial trigger points and, when present, to deactivate these by means of acupuncture stimulation of A-δ nerve fibres present in the skin and subcutaneous tissues at the trigger point sites.


1994 ◽  
Author(s):  
◽  
Andrew D Jones

The efficacy of myofascial trigger point therapy in treatment of myofasciitis was evaluated in a single blind, randomised, placebo controlled trial. The patient population consisted of twenty individuals who presented with one of the following: upper-back pain, shoulder pain, and neck-pain and or headaches and who were diagnosed as having myofasciitis.


Author(s):  
Naseem Akhtar Qureshi ◽  
Hamoud Abdullah Alsubai ◽  
Mohammed Khulaif Alharbi

Background: Myofascial pain syndrome is a common pain condition characterized by a key symptoms and signs, determined by multiple etiologies, comorbid with a variety of systemic diseases and regional pain syndromes and managed by diverse therapies with variable outcomes. Objective: This study aimed to concisely report 11 cases of myofascial pain syndrome managed by myofascial trigger point therapy. Methods: The relevant information about 11 cases was collected prospectively using a semistructured proforma. All patients were diagnosed mainly by detailed history and gold standard palpation method that helps identify taut muscles, tender myofascial trigger points, local twitch response and autonomic manifestations. Results: Most of the patients with variable age and profession presented in emergency room with acute pain, limited motion, weakness, referred pain of specific pattern and associated autonomic signs and symptoms. Myofascial trigger point therapy alone with a timeline of about 30-60 minutes of 1-3sessions brought about good results in all 11 patients (100%) who remained stable at two to three months followup. Conclusion: Myofascial pain syndrome linked with latent or active myofascial trigger points developed due to repeated strains and injuries needs to be diagnosed by history and palpation method, systemic evaluation and laboratory investigations. Though several interventions are used in myofascial pain syndrome, myofascial trigger point massage therapy alone is found to be reasonably effective with excellent results. This clinical case series is calling for double-blind randomized controlled trials among patients with myofascial pain syndrome not only in Saudi Arabia but also in other Middle East countries in future.


2010 ◽  
Vol 26 (2) ◽  
pp. 138-143 ◽  
Author(s):  
Josué Fernández-Carnero ◽  
Hong-You Ge ◽  
Yoshiyuki Kimura ◽  
César Fernández-de-las-Peñas ◽  
Lars Arendt-Nielsen

Pain ◽  
1984 ◽  
Vol 18 ◽  
pp. S124 ◽  
Author(s):  
B. Jaeger ◽  
J. L. Reeves ◽  
S. B. Graff-Radford ◽  
A. A. Fisher

Author(s):  
Hanik Badriyah Hidayat ◽  
Annisa Oktavianti

Nyeri miofasial servikal (NMS) merupakan sumber nyeri umum pada individu dengan nyeri leher kronik nonspesifik. Nyeri dapat bersifat lokal, regional dan dapat juga memiliki banyak titik pemicu nyeri (myofascial trigger points/MTrPs). NMS menyebabkan nyeri di daerah otot servikal maupun fasia di sekitarnya. Nyeri leher menurunkan kualitas hidup, menurunkan produktivitas dan menyebabkan disabilitas sehingga berpengaruh secara sosioekonomi terhadap penderita dan masyarakat.Pengobatan sindrom nyeri miofasial servikal masih belum memuaskan terkait kronisitasnya. Dry needling (DN) adalah salah satu pilihan terapi nonfarmakologi yang bisa diterapkan pada NMS. DN akan mengurangi sensitisasi perifer dan sentral dengan menghilangkan sumber nosisepsi perifer (area MTrPs), memodulasi aktifitas kornu dorsalis dan mengaktifkan jalur inhibisi nyeri sentral.Neurolog sering menangani kasus NMS dan perkembangan DN akhir-akhir ini semakin pesat sebagai manajemen nyeri. Namun, keefektifan terapi DN masih belum jelas. Oleh karena itu, pengetahuan tentang peran DN pada NMS ini penting untuk diketahui oleh para neurolog. Artikel kami akan membahas tentang peran DN pada sindrom nyeri miofasial servikal.Kata kunci: Dry needling, nyeri miofasial servikal, terapi, myofascial trigger point


2018 ◽  
Vol 7 (1) ◽  
pp. 21-27
Author(s):  
Mubarra Rao ◽  
Sadia Shafaq

Myofascial trigger point is a hyperirritable nodule present in a palpable taut band of skeletal muscle, often results from muscle injury or repetitive strain that cause pain and tightness. Myofascial trigger points are one of the most common causes of chronic neck pain. This study aims to determine the efficacy of ischemic compression in comparison with myofascial stretching on trigger points of trapezius muscle for reduction of pain and spasm. Randomized Control Trial. The study was conducted in Ziauddin Hospital. 96 participants were enrolled in the study. Participants were divided into two groups equally and randomly, Group (A) an intervention group treated with hot pack, ultrasound therapy and ischemic compression, Group (B) a control group treated with hot pack, ultrasound therapy and myofascial stretching. This regime was followed thrice a week for three weeks. Statistically significant (P < 0.05) changes in the values were found in Group A and Group B for Visual Analog scale and Penn spasm frequency scale post treatment. The results showed that there is significant difference found after both interventions for the treatment of pain and spasm caused by myofascial trigger point. It cannot be said that ischemic compression is more effective than myofascial stretching for the treatment of myofascial trigger points of trapezius muscle.


2003 ◽  
Vol 21 (1-2) ◽  
pp. 32-35 ◽  
Author(s):  
Mike Cummings

This is a case report of a 33-year-old woman who presented with an eight year history of deep left knee pain. The pain was originally diagnosed as deriving from osteoarthrosis of the hip secondary to dysplasia, however, the same pain returned at seven months, and again at 10 months, after successful hip resurfacing arthroplasty. Six to eight weeks after the start of the second relapse of referred knee pain, the patient sought acupuncture treatment at the British Medical Acupuncture Society's London Teaching Clinic. A single myofascial trigger point was found in iliopsoas that reproduced the patient's pain. It was successfully treated with two sessions of electroacupuncture applied directly to the point. Pain referral to the knee from trigger points in the upper part of rectus femoris is well recognised, however, this pattern of referral from iliopsoas has not been described previously.


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