ORBi: Maquet Didier - Fibromyalgia and related conditions: Electromyogram profile during isometric muscle contraction

Reference : Fibromyalgia and related conditions: Electromyogram profile during isometric muscle cont...


	Document type :	Scientific journals : Article
	Discipline(s) :	Human health sciences : Orthopedics, rehabilitation & sports medicine Human health sciences : Laboratory medicine & medical technology
	To cite this reference:	http://hdl.handle.net/2268/40448

Title :	Fibromyalgia and related conditions: Electromyogram profile during isometric muscle contraction
Language :	English
Author, co-author :	Maquet, Didier [Université de Liège - ULg > Département des sciences de la motricité > Département des sciences de la motricité >]
	Croisier, Jean-Louis [Université de Liège - ULg > Département des sciences de la motricité > Kinésithérapie générale et réadaptation >]
	Dupont, Catherine [Université de Liège - ULg > > Médecine de l'appareil locomoteur >]
	Moutschen, Michel [Université de Liège - ULg > Département des sciences cliniques > GIGA-R:Immunopath. - Maladies infect. et médec. inter. gén. >]
	Ansseau, Marc [Université de Liège - ULg > Département des sciences cliniques > Psychiatrie et psychologie médicale >]
	Zeevaert, Bernard [Université de Liège - ULg > > Médecine de l'appareil locomoteur >]
	Crielaard, Jean-Michel [Université de Liège - ULg > Département des sciences de la motricité > Evaluation et entraînement des aptitudes physiques - Médecine physique et réadaptation fonctionnelle >]
Publication date :	2010
Journal title :	Joint Bone Spine
Publisher :	Elsevier Science
Volume :	77
Pages :	264–267
Audience :	International
ISSN :	1297-319X
e-ISSN :	1778-7254
City :	Paris
Country :	France
Keywords :	[en] Fibromyalgia ; Chronic fatigue syndrome ; depression ; muscle ; electromyogram
Abstract :	[en] Objectives: To evaluate electromyogram (EMG) profiles in patients with three related conditions: fibromyalgia, chronic fatigue syndrome, and depression. Methods: We studied 44 healthy volunteers, 22 patients with fibromyalgia, 11 patients with chronic fatigue syndrome, and 10 patients admitted for depression. The trapezius electromyogram was recorded during maximally sustained, bilateral, 90◦ abduction of the shoulders. EMG signal frequency and amplitude were measured throughout the test. Results: In the fibromyalgia group, isometric contraction duration was significantly shorter than in the other two patient groups (P < 0.001) and the EMG frequency and amplitude pattern indicated premature discontinuation of the muscle contraction. Findings in the chronic fatigue patients were similar to those in the healthy controls. The patients with depression had a distinctive EMG profile characterized by excessive initial motor-unit recruitment with a shift in the frequency spectrum. Conclusions: Fibromyalgia was associated with a specific EMG pattern indicating premature discontinuation of the muscle contraction. Therefore, maximal voluntary muscle contraction tests may be of limited value for assessing function in fibromyalgia patients. Chronic fatigue syndrome patients had similar EMG findings to those in the healthy controls. The EMG alterations in the patients with depression were consistent with manifestations of psychomotor retardation.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/40448

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