What is known about Electrophysiological Muscle Functions of Patients with Fibromyalgia Syndrome?
ثبت نشده
چکیده
Fibromyalgia syndrome (FM) is a disorder characterized by widespread pain, in particular, muscular pain. It is known that central pain processing in FM is deregulated. This results in pain augmentation, a phenomenon termed central sensitization. In addition, there is growing evidence of muscle dysfunction in FM, especially in respect to electrophysiological muscle phenomena. This paper presents what is known from the literature about electrophysiological muscle functions in patients with FM. Two important phenomena have been shown in the last decade in patients with FM: a) an increased muscle fiber conduction velocity (CV) in their non-painful and non-tender point-related muscles and, b) a tendency to develop myofascial tender points (MTPs). MTPs are very painful spots that are irritable on physical examination (much pain, with referred sensations), and electrically hyper-reactive, as they reveal local vigorous activity with needle electromyography. Studies have shown that MTPs, as a source of pain, may play a crucial role in initiation and maintenance of central sensitization. The Conclusions are, 1) there is already much known about electrophysiological dysfunction in muscles of patients with FM. 2) The main feature is one of overall muscle hyperactivity/hyperexcitability. 3) A question arises as to whether both electrical phenomena, that is the increased CV and the tendency to produce MTPs in FM, have a common underlying factor. 4) If so, which factor is it? Is the factor intrinsic (i.e. the muscle itself), or extrinsic (i.e. related to a disturbance in the central motor regulation, a neurohormonal influence, or chronic low-level mental stress)?
منابع مشابه
Comparison of vastus medialis muscle activity in patients with patellofemoral pain syndrome after a period of flexural strength training with and without electrophysiological feedback exercises
Given that more than 50 percent of patellofemoral pain syndrome include of overuse injuries, the aim of this study was to compare the vastus medialis muscle activity in individuals with patellofemoral pain syndrome after a period of strength and flexibility training with and without the electrophysiological feedback. A total of 30 subjects (15 men and 15 women) participated in this study. Subje...
متن کاملQuality of life in fibromyalgia syndrome referred to clinic of Physical Medicine and Rehabilitation in Baqiyatallah Hospital, Tehran
Background & Purpose: Fibromyalgia syndrome is a chronic disease with unknown etiology musculoskeletal pain and tender points throughout the body are numerous. The aim of this study was to measure quality of life in patients with fibromyalgia syndrome that referred to Physical Medicine and Rehabilitation clinic in Baqiyatallah Hospital. Methods & Materials: Patients that referred to Physical...
متن کاملبررسی شیوع سندرم فیبرومیالژی در بیماران مراجعه کننده به درمانگاه داخلی بیمارستان دکتر شریعتی درسال1384
Background: Fibromyalgia has been defined as a constellation of complaints including diffuse chronic pain and the presence of tender points. Its frequency varies from 3% to 20%. This study was conducted to estimate the prevalence of fibromyalgia syndrome in patients who come to the general medical clinic of Dr. Shariati hospital.Methods: Using a standard questionnaire, all patients who came to ...
متن کاملEPIDEMIOLOGICAL, CLINICAL AND ELECTRODIAGNOSTIC FINDINGS IN CHILDHOOD GUILLAIN-BARRE SYNDROME
In order to identify the clinical and electrophysiological characteristics of childhood Guillain-Barre Syndrome (GBS) in East Azarbaijan province, clinical and electrophysiological data on 40 consecutive children with GBS, admitted to Tabriz Children's Medical Center from March 21st 1999 to March 20th 2002, were analyzed. All patients received intravenous immunoglobulin, 400 mg /kg/ day fo...
متن کاملPrevalence of fibromyalgia in patients referring to Kerman rheumatology clinic from 1995 to 1998
fibromyalgia(FM), a chronic musculoskeletal syndrome,is charaterized by widespread pain and multiple tenderness in the body.clinical studies show a wide range of prevalence(1% to 20%). there is no published data about the prevalence of FM in Kerman.in this descriptive study demographic variables and the final clhnical diognosis of 8270 cases referring to Kerman rheumatology clinic from 1995 ...
متن کامل