Needle electromyographic evaluation of patients with myofascial or fibromyalgic pain
Several past studies have evaluated the electromyographic activity of myofascial trigger points with conflicting results. This study was performed to determine whether spontaneous activity or motor unit activity was present in patients with focal myofascial pain or fibromyalgia. Using routine needle...
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| Veröffentlicht in: | American journal of physical medicine & rehabilitation 1991-06, Vol.70 (3), p.00154-00156 |
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| container_title | American journal of physical medicine & rehabilitation |
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| creator | DURETTE, M.R RODRIQUEZ, A.A AGRE, J.C SILVERMAN, J.L |
| description | Several past studies have evaluated the electromyographic activity of myofascial trigger points with conflicting results. This study was performed to determine whether spontaneous activity or motor unit activity was present in patients with focal myofascial pain or fibromyalgia. Using routine needle electromyographic techniques, we sampled reproducibly tender focal areas (tender points), similar tender areas with pain referral (trigger points), associated muscle bands and adjacent uninvolved musculature. Twenty-five subjects (14 females, 11 males, mean +/- SD age 43 +/- 14 years) were studied; twenty-one subjects with focal myofascial pain and four with fibromyalgia. Spontaneous fibrillatory or positive sharp wave potentials were not found in any muscle in the 25 subjects. There was no evidence of focal motor unit activity in the tender points, trigger points or associated muscle bands in either group. Motor unit recruitment was similar in all areas sampled. We conclude that no electrodiagnostic evidence of ongoing denervation or focal muscle spasm is found in association with focal myofascial pain or fibromyalgia. |
| doi_str_mv | 10.1097/00002060-199106000-00009 |
| format | Article |
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This study was performed to determine whether spontaneous activity or motor unit activity was present in patients with focal myofascial pain or fibromyalgia. Using routine needle electromyographic techniques, we sampled reproducibly tender focal areas (tender points), similar tender areas with pain referral (trigger points), associated muscle bands and adjacent uninvolved musculature. Twenty-five subjects (14 females, 11 males, mean +/- SD age 43 +/- 14 years) were studied; twenty-one subjects with focal myofascial pain and four with fibromyalgia. Spontaneous fibrillatory or positive sharp wave potentials were not found in any muscle in the 25 subjects. There was no evidence of focal motor unit activity in the tender points, trigger points or associated muscle bands in either group. Motor unit recruitment was similar in all areas sampled. We conclude that no electrodiagnostic evidence of ongoing denervation or focal muscle spasm is found in association with focal myofascial pain or fibromyalgia.</description><identifier>ISSN: 0894-9115</identifier><identifier>EISSN: 1537-7385</identifier><identifier>DOI: 10.1097/00002060-199106000-00009</identifier><identifier>PMID: 2039618</identifier><language>eng</language><publisher>Baltimore, MD: Lippincott</publisher><subject>Action Potentials ; Adult ; Biological and medical sciences ; Diagnosis, Differential ; Electromyography - methods ; Female ; Fibromyalgia - diagnosis ; Fibromyalgia - etiology ; Fibromyalgia - physiopathology ; Humans ; Male ; Medical sciences ; Middle Aged ; Muscles - physiopathology ; Myofascial Pain Syndromes - diagnosis ; Myofascial Pain Syndromes - etiology ; Myofascial Pain Syndromes - physiopathology ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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This study was performed to determine whether spontaneous activity or motor unit activity was present in patients with focal myofascial pain or fibromyalgia. Using routine needle electromyographic techniques, we sampled reproducibly tender focal areas (tender points), similar tender areas with pain referral (trigger points), associated muscle bands and adjacent uninvolved musculature. Twenty-five subjects (14 females, 11 males, mean +/- SD age 43 +/- 14 years) were studied; twenty-one subjects with focal myofascial pain and four with fibromyalgia. Spontaneous fibrillatory or positive sharp wave potentials were not found in any muscle in the 25 subjects. There was no evidence of focal motor unit activity in the tender points, trigger points or associated muscle bands in either group. Motor unit recruitment was similar in all areas sampled. We conclude that no electrodiagnostic evidence of ongoing denervation or focal muscle spasm is found in association with focal myofascial pain or fibromyalgia.</description><subject>Action Potentials</subject><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Diagnosis, Differential</subject><subject>Electromyography - methods</subject><subject>Female</subject><subject>Fibromyalgia - diagnosis</subject><subject>Fibromyalgia - etiology</subject><subject>Fibromyalgia - physiopathology</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Muscles - physiopathology</subject><subject>Myofascial Pain Syndromes - diagnosis</subject><subject>Myofascial Pain Syndromes - etiology</subject><subject>Myofascial Pain Syndromes - physiopathology</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DURETTE, M.R</creatorcontrib><creatorcontrib>RODRIQUEZ, A.A</creatorcontrib><creatorcontrib>AGRE, J.C</creatorcontrib><creatorcontrib>SILVERMAN, J.L</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of physical medicine & rehabilitation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DURETTE, M.R</au><au>RODRIQUEZ, A.A</au><au>AGRE, J.C</au><au>SILVERMAN, J.L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Needle electromyographic evaluation of patients with myofascial or fibromyalgic pain</atitle><jtitle>American journal of physical medicine & rehabilitation</jtitle><addtitle>Am J Phys Med Rehabil</addtitle><date>1991-06-01</date><risdate>1991</risdate><volume>70</volume><issue>3</issue><spage>00154</spage><epage>00156</epage><pages>00154-00156</pages><issn>0894-9115</issn><eissn>1537-7385</eissn><abstract>Several past studies have evaluated the electromyographic activity of myofascial trigger points with conflicting results. This study was performed to determine whether spontaneous activity or motor unit activity was present in patients with focal myofascial pain or fibromyalgia. Using routine needle electromyographic techniques, we sampled reproducibly tender focal areas (tender points), similar tender areas with pain referral (trigger points), associated muscle bands and adjacent uninvolved musculature. Twenty-five subjects (14 females, 11 males, mean +/- SD age 43 +/- 14 years) were studied; twenty-one subjects with focal myofascial pain and four with fibromyalgia. Spontaneous fibrillatory or positive sharp wave potentials were not found in any muscle in the 25 subjects. There was no evidence of focal motor unit activity in the tender points, trigger points or associated muscle bands in either group. Motor unit recruitment was similar in all areas sampled. We conclude that no electrodiagnostic evidence of ongoing denervation or focal muscle spasm is found in association with focal myofascial pain or fibromyalgia.</abstract><cop>Baltimore, MD</cop><pub>Lippincott</pub><pmid>2039618</pmid><doi>10.1097/00002060-199106000-00009</doi><tpages>3</tpages></addata></record> |
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| ispartof | American journal of physical medicine & rehabilitation, 1991-06, Vol.70 (3), p.00154-00156 |
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| source | MEDLINE; Journals@Ovid Complete |
| subjects | Action Potentials Adult Biological and medical sciences Diagnosis, Differential Electromyography - methods Female Fibromyalgia - diagnosis Fibromyalgia - etiology Fibromyalgia - physiopathology Humans Male Medical sciences Middle Aged Muscles - physiopathology Myofascial Pain Syndromes - diagnosis Myofascial Pain Syndromes - etiology Myofascial Pain Syndromes - physiopathology Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) |
| title | Needle electromyographic evaluation of patients with myofascial or fibromyalgic pain |
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