Relationships between the fibromyalgia impact questionnaire, tender point count, and muscle strength in female patients with fibromyalgia: A cohort study

Wiley - Tập 61 Số 6 - Trang 732-739 - 2009
Marius Henriksen1, Hans Lund2, Robin Christensen1, Anders Jespersen1, Lene Dreyer3, Robert M. Bennett4, Henning Bliddal5
1Frederiksberg Hospital, Frederiksberg, Denmark
2University of Southern Denmark, Odense, Denmark
3Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
4Oregon Health & Science University, Portland
5Frederiksberg Hospital, Frederiksberg, Aalborg University, Aalborg, and University of Copenhagen, Copenhagen, Denmark

Tóm tắt

AbstractObjectiveTo test the hypothesis that fibromyalgia (FM) patients with reduced lower extremity strength are more symptomatic and tender than FM patients with normal muscle strength.MethodsA total of 840 FM patients and 122 healthy subjects were evaluated between 1998 and 2005. All of the patients completed version 1 of the Fibromyalgia Impact Questionnaire (FIQ) and were assessed for tender points and knee muscle strength. All subjects underwent bilateral isokinetic knee muscle strength testing in flexion and extension. Normative knee muscle strength values were calculated from the healthy subjects, and the FM cohort was divided in 2 groups: 1) patients with normal muscle strength and 2) patients with low muscle strength (2 SDs below normal). The clinical characteristics of these 2 groups were compared.ResultsSignificantly reduced knee muscle strength was found in 52% of the patients. There were no clinically significant differences between patients with low versus normal muscle strength. There were no clinically significant correlations between total FIQ score, tender point count, and muscle strength. Only 4.6% of the FIQ scores and 5.1% of the tender point counts were explained by muscle strength.ConclusionSignificantly reduced knee muscle strength was found in more than half of the patients. Patients with subnormal muscle strength were not more symptomatic or tender than patients with normal muscle strength. There were no clinically significant correlations between FIQ, tender point count, and muscle strength; therefore, reduced knee muscle strength appears to be a common objective abnormality in FM that is independent of measurements of disease activity. The implication of this finding in regard to the clinical assessment of FM needs further study.

Từ khóa


Tài liệu tham khảo

White KP, 1999, The London Fibromyalgia Epidemiology Study: comparing the demographic and clinical characteristics in 100 random community cases of fibromyalgia versus controls, J Rheumatol, 26, 1577

10.2522/ptj.20050320

10.1002/art.1790070305

10.1016/S1297-319X(02)00373-1

10.1002/art.1780400904

10.1080/09638280400009089

10.1093/gerona/61.11.1186

Danneskiold‐Samsoe B, 1986, The relationship between the leg muscle strength and physical capacity in patients with rheumatoid arthritis, with reference to the influence of corticosteroids, Clin Rheumatol, 5, 468

10.1007/s100670170067

10.1007/BF02208344

10.1016/j.apmr.2006.10.025

10.1136/jnnp.57.9.1106

10.1002/art.21751

10.1111/j.1600-0404.1988.tb05893.x

Vestergaard‐Poulsen P, 1995, 31P NMR spectroscopy and electromyography during exercise and recovery in patients with fibromyalgia, J Rheumatol, 22, 1544

10.1300/J094v03n03_04

10.1097/01.SMJ.0000101146.95697.18

10.1016/j.ejpain.2005.12.013

Mengshoel AM, 1990, Muscle strength and aerobic capacity in primary fibromyalgia, Clin Exp Rheumatol, 8, 475

10.1007/s002960050095

Jacobsen S, 1987, Isometric and isokinetic muscle strength in patients with fibrositis syndrome: new characteristics for a difficult definable category of patients, Scand J Rheumatol, 16, 61

Jacobsen S, 1991, Isokinetic and isometric muscle strength combined with transcutaneous electrical muscle stimulation in primary fibromyalgia syndrome, J Rheumatol, 18, 1390

10.1016/0003-9993(94)90008-6

10.3109/03009749309095105

10.1093/rheumatology/34.10.925

Norregaard J, 1997, Muscle strength, working capacity and effort in patients with fibromyalgia, Scand J Rehabil Med, 29, 97

10.1136/ard.60.1.21

10.1093/rheumatology/keh027

10.1002/mus.10225

10.1016/j.pain.2008.10.029

10.1152/japplphysiol.01105.2006

10.1136/bjsm.2008.050393

10.1002/art.24089

Wolfe F, 2000, The assessment of functional impairment in fibromyalgia (FM): Rasch analyses of 5 functional scales and the development of the FM Health Assessment Questionnaire, J Rheumatol, 27, 1989

Mease PJ, 2005, Fibromyalgia syndrome, J Rheumatol, 32, 2270

10.1002/art.1780330203

10.1016/S1521-6942(03)00035-4

10.1016/S1520-765X(01)90110-5

Bennett R, 2005, The Fibromyalgia Impact Questionnaire (FIQ): a review of its development, current version, operating characteristics and uses, Clin Exp Rheumatol, 23, S154

Burckhardt CS, 1991, The Fibromyalgia Impact Questionnaire: development and validation, J Rheumatol, 18, 728

10.1111/j.1475-097X.2004.00593.x

10.2519/jospt.1990.11.7.298

10.1136/bjsm.30.3.243

10.2519/jospt.1997.26.6.318

Miller TA, 1996, Muscle force, perceived effort, and voluntary activation of the elbow flexors assessed with sensitive twitch interpolation in fibromyalgia, J Rheumatol, 23, 1621

10.1097/00007632-198801000-00013

Luoto S, 1996, Isokinetic performance capacity of trunk muscles: part II. Coefficient of variation in isokinetic measurement in maximal effort and in submaximal effort, Scand J Rehabil Med, 28, 207

Jacobsen S, 1989, Inter‐relations between clinical parameters and muscle function in patients with primary fibromyalgia, Clin Exp Rheumatol, 7, 493

Kalyan‐Raman UP, 1984, Muscle pathology in primary fibromyalgia syndrome: a light microscopic, histochemical and ultrastructural study, J Rheumatol, 11, 808

10.1093/gerona/54.1.M38

10.1097/RHU.0b013e318190f991

Thông tin
Thông tin xuất bản

Wiley

Tập 61 Số 6

732-739

Thông tin tác giả