Muscle Damping Measured With a Modified Pendulum Test in Patients With Fibromyalgia, Lumbago, and Cervical Syndrome

Wachter, K.; Kaeser, H E; Gühring, Hans; Ettlin, Thierry; Mennet, P; Müller, W

doi:10.1097/00007632-199609150-00016

Cited by 17 publications

(22 citation statements)

References 14 publications

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“…Moreover, the middle-aged FM subjects demonstrated a viscous stiffness of 1.2 times that of controls. The magnitude of ankle joint stiffness increase observed in this study is almost similar to the knee joint stiffness increase described by Wachter et al (1996) who also reported an increase of more than two times. The results indicate that the self-perceived stiffness increase of ankle reported by younger and middle-aged FM subjects is due to changes in elastic and/or viscous MA structures around the ankle.…”

Section: Fibromyalgia Subjects Have Significant Increase Of Ma Stiffnesssupporting

confidence: 90%

“…However, to date, very little attention has been placed on the quantitative measurement of the passive MA stiffness of a joint among FM subjects and the nature of stiffness increase (elastic and/or viscous) has not been yet determined. To our knowledge, only one team of researchers (Wachter et al 1996) showed an increase in knee joint stiffness in a small sample of 15 FM subjects.…”

Section: Introductionmentioning

confidence: 91%

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Nature of passive musculoarticular stiffness increase of ankle in female subjects with fibromyalgia syndrome

et al. 2011

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The objective of this study was to assess the passive elastic and viscous stiffness components of ankle in young, middle-aged and old adult female fibromyalgia subjects and compare the results with age-matched healthy control subjects. The passive musculoarticular stiffness of the ankles of 60 fibromyalgia subjects and 52 controls was quantified by measuring the ankle resistance to imposed sinusoidal rotary displacements at nine different oscillation frequencies. For each frequency, the resulting torque response of the ankles was decomposed into elastic and viscous components of the total stiffness. The self-perceived stiffness intensity of the ankles was assessed in fibromyalgia subjects by means of a visual analogue scale. Two-way ANOVA test indicated a significant effect of fibromyalgia (P < 0.001) and age (P < 0.001) on elastic stiffness results and a significant effect of age (P < 0.001) on viscous stiffness results. Post hoc Holm-Sidak test indicated that younger and middle-aged fibromyalgia subjects had a significant elastic stiffness increase of more than two times that of controls (P = 0.038 and P < 0.001, respectively). Middle-aged fibromyalgia subjects had a significant viscous stiffness increase of 1.2 times that of controls (P = 0.038). No significant differences in stiffness were observed between older fibromyalgia subjects and controls. In conclusion, the self-perceived stiffness increase of ankle reported by younger and middle-aged fibromyalgia subjects is due to changes in elastic and/or viscous musculoarticular structures around the ankle. The absence of changes in older fibromyalgia subjects is probably related to the ageing process of controls.

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Section: Fibromyalgia Subjects Have Significant Increase Of Ma Stiffnesssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 91%

Nature of passive musculoarticular stiffness increase of ankle in female subjects with fibromyalgia syndrome

et al. 2011

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“…Il est intéressant de remarquer qu'il existe une augmentation de la raideur musculaire élastique des chevilles des sujets fibromyalgiques malgré l'existence d'une raideur totale des chevilles équivalente dans les deux groupes. L'étude de Wachter et al [15] a quantifié la raideur musculaire des extenseurs des genoux de 15 sujets fibromyalgiques à l'aide d'un test du pendule modifié et n'arrive pas aux mêmes constatations. En effet, selon ces auteurs, la raideur musculaire totale au niveau des cuisses est plus importante chez les sujets fibromyalgiques que chez les sujets témoins.…”

Section: Discussionunclassified

“…En ce qui concerne la durée de l'atteinte, il est possible que notre échantillon de sujets jeunes ne nous ait pas permis de mettre en évidence une éventuelle modification de la raideur musculaire visqueuse et par voie de conséquence de la raideur musculaire « totale ». La durée de l'atteinte du syndrome de fibromyalgie était en moyenne de 15 mois pour notre échantillon et l'étude de Wachter et al [15] ne la précise pas.…”

Section: Discussionunclassified

“…D'autres n'ont pas observé de rythme diurnal concernant l'intensité subjective de la raideur des sujets fibromyalgiques [12]. À notre connaissance, une seule équipe de chercheurs [15] a réalisé une étude quantifiée de la raideur musculaire dans cette population. Ces auteurs ont utilisé un test du pendule [16] visant à quantifier la raideur des muscles extenseurs du genou.…”

Section: Introductionunclassified

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Pouvons-nous objectiver la raideur musculaire du patient fibromyalgique ?

Dierick¹,

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Desenfans

et al. 2007

Douleur analg

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La raideur viscoélastique des muscles des chevilles a été quantifiée chez neuf sujets féminins atteints de fibromyalgie et neuf sujets témoins à l'aide de mouvements sinusoïdaux passifs. Une augmentation de la raideur musculaire élastique des muscles de la cheville ainsi qu'une différence de raideur musculaire visqueuse entre les deux chevilles ont été observées chez les sujets fibromyalgiques. En conclusion, la mesure de la résistance à des mouvements sinusoïdaux passifs au niveau des muscles des chevilles pourrait s'avérer être une méthode sensible pour quantifier la perception subjective de raideur décrite par les sujets fibromyalgiques.Abstract: Viscoelastic stiffness in the ankles of nine female subjects with fibromyalgia and nine control subjects was quantified by assessing passive sinusoidal movement. Increased elastic muscle stiffness in the ankles as well as different viscous muscle stiffness in the two ankles was observed in the subjects with fibromyalgia. In conclusion, measuring the resistance to the passive sinusoidal movement of the ankles could offer a valuable method of quantifying the subjective feeling of stiffness described by people with fibromyalgia.

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Current concepts in the pathophysiology of fibromyalgia: the potential role of oxidative stress and nitric oxide

et al. 2005

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Fibromyalgia (FM) is a common chronic pain syndrome with an unknown etiology. Recent years added new information to our understanding of FM pathophysiology. Researches on genetics, biogenic amines, neurotransmitters, hypothalamic-pituitary-adrenal axis hormones, oxidative stress, and mechanisms of pain modulation, central sensitization, and autonomic functions in FM revealed various abnormalities indicating that multiple factors and mechanisms are involved in the pathogenesis of FM. Oxidative stress and nitric oxide may play an important role in FM pathophysiology, however it is still not clear whether oxidative stress abnormalities documented in FM are the cause or the effect. This should encourage further researches evaluating the potential role of oxidative stress and nitric oxide in the pathophysiology of FM and the efficacy of antioxidant treatments (omega-3 and -6 fatty acids, vitamins and others) in double blind and placebo controlled trials. These future researches will enhance our understanding of the complex pathophysiology of this disorder.

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Muscle Damping Measured With a Modified Pendulum Test in Patients With Fibromyalgia, Lumbago, and Cervical Syndrome

Cited by 17 publications

References 14 publications

Nature of passive musculoarticular stiffness increase of ankle in female subjects with fibromyalgia syndrome

Nature of passive musculoarticular stiffness increase of ankle in female subjects with fibromyalgia syndrome

Pouvons-nous objectiver la raideur musculaire du patient fibromyalgique ?

Current concepts in the pathophysiology of fibromyalgia: the potential role of oxidative stress and nitric oxide

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