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Titolo:
Chronic pain and difficulty in relaxing postural muscles in patients with fibromyalgia and chronic whiplash associated disorders
Autore:
Elert, J; Kendall, SA; Larsson, B; Mansson, B; Gerdle, B;
Indirizzi:
Fac Hlth Sci, Dept Rehabil Med, INR, S-58185 Linkoping, Sweden Fac Hlth Sci Linkoping Sweden S-58185 ed, INR, S-58185 Linkoping, Sweden Linkoping Univ Hosp, Pain & Rehabil Ctr, Linkoping, Sweden Linkoping Univ Hosp Linkoping Sweden n & Rehabil Ctr, Linkoping, Sweden
Titolo Testata:
JOURNAL OF RHEUMATOLOGY
fascicolo: 6, volume: 28, anno: 2001,
pagine: 1361 - 1368
SICI:
0315-162X(200106)28:6<1361:CPADIR>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
ISOKINETIC SHOULDER; TRAPEZIUS MUSCLE; MECHANICAL PERFORMANCE; HEALTHY CONTROLS; FEMALE CLEANERS; FLEXIONS; TENSION; MYALGIA; NECK; ELECTROMYOGRAM;
Keywords:
fibromyalgia; muscle; pain; strength; whiplash;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Gerdle, B Fac Hlth Sci, Dept Rehabil Med, INR, S-58185 Linkoping, Sweden Fac Hlth Sci Linkoping Sweden S-58185 -58185 Linkoping, Sweden
Citazione:
J. Elert et al., "Chronic pain and difficulty in relaxing postural muscles in patients with fibromyalgia and chronic whiplash associated disorders", J RHEUMATOL, 28(6), 2001, pp. 1361-1368

Abstract

Objective. To investigate if muscle tension according to the surface electromyogram (EMG) of the shoulder flexors is increased in consecutive patients with fibromyalgia (FM) or chronic whiplash associated disorders (WAD). Methods. A total of 59 consecutive patients with FM (n = 36) or chronic WAD (n = 23) performed 100 maximal isokinetic contractions combined with surface electromyography of the trapezius and infraspinatus. A randomized groupof pain-free female (n = 27) subjects served as control group. Peak torqueinitially (Pti) and absolute and relative peak torque at endurance level (PTe, PTer) were registered as output variables, together with the EMG levelof unnecessary muscle tension, i.e., the signal amplitude ratio (SAR). Results. The patient groups had a higher level of unnecessary tension initially and at the endurance level. The patients had lower absolute output (PTi and PTe), but the relative levels (PTer) did not differ comparing all 3 groups. Subjects with FM had significantly higher body mass index (BMI) than the other groups. BMI did not influence the SAR but correlated positivelywith PTi. Conclusion. The results confirmed earlier findings that groups of patientswith chronic pain have increased muscle tension and decreased output during dynamic activity compared to pain-free controls. However, the results indicated there is heterogeneity within groups of patients with the same chronic pain disorder and that not all patients with chronic pain have increasedmuscle tension.

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Documento generato il 01/06/20 alle ore 02:10:43