References of "Croisier, Jean-Louis"
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See detailUse of magnetic resonance imaging and 31p-spectroscopy to explore muscle energetics in fibromyalgia patients
Maquet, Didier ULg; Vanderthommen, Marc ULg; Lecart, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2007), 66

Background: Fibromyalgia (FM) is defined as a chronic syndrome characterized by diffuse pain. FM patients generally complain of muscle fatigue during physical activities and symptoms worsening after ... [more ▼]

Background: Fibromyalgia (FM) is defined as a chronic syndrome characterized by diffuse pain. FM patients generally complain of muscle fatigue during physical activities and symptoms worsening after exercise. Some studies have explored muscle performances in FM patients. Similarly, we reported that all variables of muscle performances were decreased in FM patients as compared to the controls [1]. We found that muscle impairment predominated over aerobic processes. The 31P nuclear magnetic resonance spectroscopy (NMRS) appears especially useful to study muscle energy metabolism because it is non-invasive and allows the exploration during exercise. Objectives: The purposes were: (1) to determine the maximal transverse section (MTS) of calf muscles by Magnetic Resonance Imaging (MRI) in order to calculate the individual mechanical loads of exercise without requiring the measurement of the maximal voluntary torque; (2) to monitor, by 31P-NMRS, high-energy phosphate metabolism and intracellular pH at rest, during exercise and recovery periods by means of continuous spectra acquisitions with an adequate temporal resolution; (3) to determine an original efficacy muscular index with the help of the ergometric and spectroscopic parameters; (4) to explore the oxidative pathway by means of determination of the PCr rephosphorylation time constant. Methods: Eight women with fibromyalgia (FM) and 30 healthy volunteers were included in this study. MRI of the dominant leg was acquired in order to determine the MTS of calf muscles and thus to calculate the different loads of exercise (dynamic plantar flexions). Subjects performed 3-6 bouts of 2 minutes with workload increments until exhaustion. Spectra were acquired continuously at rest, during the exercise and recovery periods. The analysis concerned the gamma-, alpha- and beta- ATP, Pi, PCr peaks, and intracellular pH. At the end of the exercise, the muscular efficacy index and the PCr re-phosphorylation time constant were calculated. Results: The MTS of the ankle plantar flexors reached respectively 43 cm² and 36.7 cm² in the control and FM groups (p > 0.05). No significant difference (p > 0.05) was observed between both groups in spectroscopic data registered at rest [10.7 (control) vs 9.1 (FM) for PCr/Pi rest ; 7.01 (control) vs 6.99 (FM) for pHrest] and at the end of exercise [1.18 (control) vs 0.68 (FM) for PCr/Pi end ; 6.89 (control) vs 6.81 (FM) for pHend]. However, the muscular efficacy index was significantly reduced in FM patients (1.25) in comparison with control group (2.46) (p < 0.05). Two patients presented an index extremely low (0.3 and 0.4). The PCr time constant was not different between control subjects (27.7 s) and FM patients (25.6 s) (p > 0.05). Conclusion: Our original protocol, not based on maximum voluntary contraction assessment, did not indicate any abnormalities in glycolytic and oxydative pathways in FM patients. We demonstrated a low efficiency of chemical to mechanical energy shift in FM patients. These results suggested a deconditioning syndrome without primitive muscular abnormalities in FM patients and displayed the importance of aerobic muscular rehabilitation. References: [1]Maquet D, Croisier JL, Renard C, Crielaard JM. Muscle performance in patients with fibromyalgia. J Bone Spine. 2002;69:293-9. [less ▲]

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See detailInfluence of specific rehabilitation programs on pressure pain thresholds in patients with fibromyalgia or chronic low back pain
Maquet, Didier ULg; Demoulin, Christophe ULg; Lecart, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2007), 66

Background: Specific rehabilitation programs are recommended in chronic pain syndromes. The subjective experience and multidimensional nature of pain is problematic for assessment. Pressure pain threshold ... [more ▼]

Background: Specific rehabilitation programs are recommended in chronic pain syndromes. The subjective experience and multidimensional nature of pain is problematic for assessment. Pressure pain threshold (PPT) is defined as the minimum force applied which induces pain measured with a dolorimeter. Objectives: The purposes were: (1) to compare PPTs for 18 specific tender sites in patients with fibromyalgia (FM) and in patients with chronic low back pain (CLBP), (2) to assess the PPT changes in these groups following specific rehabilitation programs. Methods: Eleven women with CLBP and six women with FM were included in this study. They attended biweekly specific multidisciplinary rehabilitation sessions for 8 weeks. Pain intensity and PPTs for the 18 specific tender sites defined by the American College of Rheumatology were evaluated respectively with a visual analogue scale (VAS) and with an electronic dolorimeter, before and after the programs. Normative data of PPTs were established in a recent study [1]. Results: Before starting the rehabilitation program, patients with FM displayed VAS scores higher (p<0.05) than those with CLBP. Furthermore, FM patients had the lowest (p<0.05) PPTs over all examined areas. Statistical analysis failed to show any differences between PPTs of CLBP and healthy subjects. At the end of the specific program, VAS scores decreased significantly in both patient groups. In contrast, a significant increase of PPTs was only observed in FM patients. However, their PPTs remained below the CLBP and healthy PPT values. Conclusion: Despite the presence of chronic pain in these two syndromes, the decrease of PPTs appears to be specific in patients with FM. Measure of PPTs could represent a relevant method in order to perform a longitudinal follow-up of patient's pain perception. After the rehabilitation programs, pain intensity decreased in both patient groups. References: [1] Maquet D, Croisier JL, Demoulin C, Crielaard JM. Pressure pain thresholds of tender point sites in patients with fibromyalgia and in healthy controls. Eur J Pain, 2004, 8:111-117. [less ▲]

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See detailDoes neuromuscular electrical stimulation influence muscle recovery after maximal isokinetic exercise?
Vanderthommen, Marc ULg; Soltani, Karim ULg; Maquet, Didier ULg et al

in Isokinetics & Exercise Science (2007), 15(2), 143-149

Neuromuscular electrical stimulation (ES) and passive recovery (PR) were compared in ten healthy men after a provocation exercise inducing delayed onset of muscle soreness (DOMS). The exercise consisted ... [more ▼]

Neuromuscular electrical stimulation (ES) and passive recovery (PR) were compared in ten healthy men after a provocation exercise inducing delayed onset of muscle soreness (DOMS). The exercise consisted of 3 sets of 30 maximal eccentric contractions performed by the knee flexor muscles of the dominant leg on an isokinetic dynamometer at 60 degrees/s angular velocity. There was an interval of 8 weeks between both bouts and the order of the recovery mode (ES or PR) was block-randomly assigned. ES recovery consisted of a 25-min continuous and non-tetanic (5 Hz) stimulation of the hamstring muscles. Concentric and eccentric hamstrings peak torques were evaluated before and immediately after the provocation exercise, after the recovery period, as well as 24 h (d1), 48 h (d2), 72 h (0) and 168 h (0) after the bout. Subjective perception of muscle soreness (VAS, 0-10 a.u.) was evaluated before exercise and at d1, d2, 0 and d7. To assess the CK activity, five blood samples were drawn before exercise and at d1, d2, d3 and d7. For both recovery modes, the greatest reductions in isokinefic muscle performances were measured on d2 (66.3 +/- 24.1 % of initial values (ES) vs. 57.4 +/- 26.5% (PR) for the concentric mode and 55.6 +/- 16% (ES) vs. 53.1 +/- 19.3% (PR) for the eccentric mode). d2 also corresponded to the highest painful sensations (5.4 +/- 2.14 a.u. (ES) vs. 6.15 +/- 2.55 a.u. (PR)). Peak activities of CK were reached on d3 (47507 +/- 19973 IU/l (ES) vs. 75887 41962 IU/l (PR)). Serum CK was lower with ES than PR at 0 (p <= 0.05) but all other parameters changed in a manner that was not statistically different between the two recovery protocols (p > 0.05). This strong trend could be explained by an electro-induced hyperperfusion that may efficiently wash out the muscle from the cellular debris resulting from the initial injury, and hence diminish the inflammatory response and the delayed amplification of tissue damages. [less ▲]

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See detailPlace de l'isocinétisme dans la rééducation des instabilités d'épaule
Croisier, Jean-Louis ULg; Gremeaux, V.; Forthomme, Bénédicte ULg

in Codine, P.; Hérisson, C. (Eds.) Instabilité de l'épaule et médecine de rééducation (2007)

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See detailInstabilité de l'épaule : faillite de la contention musculaire active ? Apport de l'évaluation isocinétique
Gremeaux, V.; Croisier, Jean-Louis ULg; Forthomme, Bénédicte ULg

in Codine, P.; Hérisson, C. (Eds.) Instabilité de l'épaule et médecine de rééducation (2007)

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See detailRééducation des instabilités non opérées
Forthomme, Bénédicte ULg; Crielaard, Jean-Michel ULg; Croisier, Jean-Louis ULg

in Codine, P.; Hérisson, C. (Eds.) Instabilité de l'épaule et médecine de rééducation (2007)

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See detailRelationship between muscular performances of the shoulder and morphostatic profile
Forthomme, Bénédicte ULg; Arimont, A.; Bregonzio, Jany et al

in Isokinetics & Exercise Science (2007), 15

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See detailWhole body vibration in the treatment of fibromyalgia: Influence on muscle performances
Maquet, Didier ULg; Helene, Loic; Demoulin, Christophe ULg et al

in Isokinetics & Exercise Science (2007), 15

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See detailPhysiological consequences of strenuous concentric and eccentric isokinetic exercises
Croisier, Jean-Louis ULg; Maquet, Didier ULg; Lehance, Cédric ULg et al

in Isokinetics & Exercise Science (2007), 15(1), 51

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See detailIsokinetic and iso-inertial assessments: Competion or complementarity?
Jidovtseff, Boris ULg; Crielaard, Jean-Michel ULg; Croisier, Jean-Louis ULg

in Isokinetics & Exercise Science (2007), 15(1), 52-53

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See detailInfluence of bench press exercise modality on the iso-inertial performance
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg

in Science & Sports (2006), 21(3), 159-162

Introduction. - This study used an iso-inertial dynamometer to investigate the influence of counter-movement and barbell throwing during bench press exercise. A critical analysis of these modalities ... [more ▼]

Introduction. - This study used an iso-inertial dynamometer to investigate the influence of counter-movement and barbell throwing during bench press exercise. A critical analysis of these modalities during muscular evaluation was also performed. Methods. - The action of muscle stretch during the counter-movement induced an increase in average velocity and a shortening of the time to reach the peak power and peak velocity. The barbell throwing did not alter the initial part of the movement yet lengthened the propulsive phase and delayed the braking phase. Consequently, maximal power and maximal velocity performances were improved. However, the throwing of the barbell requires its catch when failing down, which could be potentially harmful. Conclusion. - The counter-movement and the throwing of the barbell significantly change the iso-inertial performances through a bench press exercise. The modalities of bench press assessment execution would have to be rigorously standardized. (c) 2006 Elsevier SAS. Tous droits reserves. [less ▲]

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See detailInteret de la revalidation aerobie dans la prise en charge de la fibromyalgie
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Demoulin, Christophe ULg et al

in Revue Médicale de Liège (2006), 61(2), 109-16

This study assesses the influence of a muscular aerobic revalidation program on the management of the fibromyalgia syndrome. After 3 months, benefits consisting of increased muscle performances associated ... [more ▼]

This study assesses the influence of a muscular aerobic revalidation program on the management of the fibromyalgia syndrome. After 3 months, benefits consisting of increased muscle performances associated with a reduction of pain and an improvement of quality of life were documented. This study confirms the value of aerobic muscle exercise in fibromyalgia patients. [less ▲]

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See detailIso-inertial fatigue assessment: protocol, descriptive data and reproducibility analysis
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Cordonnier, Caroline ULg et al

in Abstract Book of the 5th International Conference on Strength training (2006)

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See detailRééducation de l’épaule du sportif : Proposition d’une fiche d’évaluation fonctionnelle
Forthomme, Bénédicte ULg; Crielaard, Jean-Michel ULg; Croisier, Jean-Louis ULg

in Journal de Traumatologie du Sport (2006), 23

Sports activity involving the upper limb implies some powerful movements leading to the development of specific adaptations of the shoulder. These adaptive patterns increase the risk of injury. Shoulder ... [more ▼]

Sports activity involving the upper limb implies some powerful movements leading to the development of specific adaptations of the shoulder. These adaptive patterns increase the risk of injury. Shoulder rehabilitation in athletes should be guided by the results of a specific physical examination of the shoulder. In this article we propose an original evaluative form specifically designed for the athletic shoulder which takes into consideration the morphostatic and physical features as well as the possible bilateral asymmetries. The functional evaluation includes measurement of range of motion, flexibility, isometric muscle strength, position and motion patterns of the scapula. Progress achieved during rehabilitation programs can be monitored with successive evaluations which are helpful for determining the most suitable treatment. [less ▲]

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See detailMuscle energetics in fibromyalgia patients explored by magnetic resonance imaging and 31P-spectroscopy
Maquet, Didier ULg; Vanderthommen, Marc ULg; Demoulin, Christophe ULg et al

in Pederson, John-A. (Ed.) New Research in Fibromyalgia (2006)

Objectives: The aim of this study was to use magnetic resonance imaging and 31P spectroscopy in order to explore muscle metabolism during exercise in fibromyalgia patients. Methods: Eight women with ... [more ▼]

Objectives: The aim of this study was to use magnetic resonance imaging and 31P spectroscopy in order to explore muscle metabolism during exercise in fibromyalgia patients. Methods: Eight women with fibromyalgia (FM) and 30 healthy volunteers were included in this study. Magnetic resonance imaging of the dominant leg was acquired in order to determine the maximal transverse section (MTS) of calf muscles and thus to calculate the different loads of exercise (dynamic plantar flexions). Subjects performed 3-6 bouts of 2 minutes with workload increments until exhaustion. Spectra were acquired continuously at rest, during the exercise and recovery periods. The analysis concerned the -, - and - ATP, Pi, PCr peaks, and intracellular pH. At the end of the exercise, a muscular efficacy index and the PCr re-phosphorylation time constant were calculated. Results: The MTS of the ankle plantar flexors reached respectively 43  7 cm² and 36.7  5 cm² in control and FM groups (p > 0.05). No significant difference (p > 0.05) was observed between both groups in spectroscopic data registered at rest [10.7 (control) vs 9.1 (FM) for PCr/Pirest ; 7.01 (control) vs 6.99 (FM) for pHrest] and at the end of exercise [1.18 (control) vs 0.68 (FM) for PCr/Piend ; 6.89 (control) vs 6.81 (FM) for pHend]. The muscular efficacy index was significantly reduced in FM patients (1.25) in comparison with control group (2.46) (p < 0.05). The PCr time constant was not different between control subjects (27.7 s) and FM patients (25.6 s) (p > 0.05). Conclusions: This study did not indicate any abnormalities in glycolytic and oxydative pathways in FM patients. We demonstrated a low efficiency of chemical to mechanical energy shift in FM patients. These results suggested a deconditioning syndrome without primitive muscular abnormalities in FM patients and displayed the importance of aerobic muscular rehabilitation. [less ▲]

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See detailBenefits of a physical training program after back school for chronic low back pain patients
Demoulin, Christophe ULg; Maquet, Didier ULg; Tomasella, Marco ULg et al

in Journal of Musculoskeletal Pain (2006), 14(2), 21-31

Objectives: Compare a treatment combining a back school program and physical training with a treatment consisting of only aback school program undertaken by chronic low back pain [CLBP] patients. Methods ... [more ▼]

Objectives: Compare a treatment combining a back school program and physical training with a treatment consisting of only aback school program undertaken by chronic low back pain [CLBP] patients. Methods: Forty CLBP patients [21 females] completed an educational back school program. Once ended, 17 subjects [the Education-Physical Group [EPG]] started physical training sessions attended twice a week [90 minutes] for six weeks. The others constituted the Education Group [EG]. All subjects performed three tests: the pain visual analog scale, the Dallas questionnaire assessing quality of life, and an ergonomic test at the beginning [Day [D] 1], at the end [D21] of the back school program, and three months later [D120]. The EPG also carried out physical tests at the start and at the end of the physical training. Results: At D21, no significant difference in pain and Dallas scores appeared, although patients of both groups performed the ergonomic test significantly better. At D120, the decrease of pain intensity and the quality of life improvement were significant in both groups [P < 0.05]. The extent of the pain intensity decrease was significantly higher in the EPG compared to the EG. The EPG displayed improvements in most physical assessments [P < 0.05]. Only the increase of knee extensors strength correlated significantly with the improvements of quality of life and ergonomic function scores. Conclusions: This study supports positive effects of a back school program for CLBP patients. Additional physical training sessions lead to lower pain intensity, greater improvement of quality of life than back school sessions only, as well as improvement of muscle performances. The increase of the knee extensors strength might have helped to decrease the pain and improve the quality of life. [less ▲]

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See detailThe concept of iso-inertial assessment: Reproducibility analysis and descriptive data
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Lhermerout, Claude ULg et al

in Isokinetics & Exercise Science (2006), 14(1), 53-62

The purpose of this study was to investigate the reproducibility of findings derived from a new iso-inertial dynamometer during bench press (BP) and squat (SQ) and to provide descriptive data for ... [more ▼]

The purpose of this study was to investigate the reproducibility of findings derived from a new iso-inertial dynamometer during bench press (BP) and squat (SQ) and to provide descriptive data for recreational athletes. A position transducer and accelerometer were combined to assess velocity and power during free weight lifting exercises. Simulated movement with a pulley system revealed the excellent technical consistency of the dynamometer. Sixteen male subjects participated in the study. Iso-inertial tests consisted of lifting as fast as possible four different relative loads (35, 50, 70, 90% 1RM in BP and 45, 60, 75, 90% 1RM in SQ). The test was repeated one week later. Analysis of variance revealed no significant variation between sessions or trials. Reproducibility was better in velocity than in power, although it remained fairly good in both exercises (coefficients of variation [CV] never exceeding 10%) except for the time to peak power parameter. Descriptive data confirmed the classical force-velocity and force-power relationships for BP and SQ. In conclusion, this study demonstrated reliable measurements in BP and SQ iso-inertial exercises. Monitoring force-velocity and force-power relationships offers an original functional approach in strength training supervision. [less ▲]

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See detailIntérêts de la revalidation musculaire progressive dans la prise en charge de la fibromyalgie
Maquet, Didier ULg; Demoulin, Christophe ULg; Croisier, Jean-Louis ULg et al

in Revue du Rhumatisme (2006), 73

Objectif : Ce travail a pour objectif d’apprécier l’intérêt d’un programme de reconditionnement physique aérobie dans le traitement de la fibromyalgie. Patients et méthodes : Dix patientes fibromyalgiques ... [more ▼]

Objectif : Ce travail a pour objectif d’apprécier l’intérêt d’un programme de reconditionnement physique aérobie dans le traitement de la fibromyalgie. Patients et méthodes : Dix patientes fibromyalgiques, diagnostiquées selon les critères du Collège Américain de Rhumatologie (1990), réalisent trois séances hebdomadaires d’une durée d’une heure trente sur une période de 3 mois. Le programme de revalidation comporte principalement des activités musculaires aérobies (bicyclette ergométrique, tapis de marche, rameur et step), complétées par des étirements et de la relaxation. Les bénéfices éventuels sont objectivés à partir d’épreuves physiques maximales (isocinétisme) et sous-maximales (test de marche, bicyclette ergométrique, endurance musculaire statique), d’une évaluation du seuil de sensibilité douloureuse à l’aide d’un dolorimètre et de questionnaires de qualité de vie, de quantification de la fatigue et de satisfaction. En outre, les perceptions douloureuses et de pénibilité de l’effort sont respectivement quantifiées à partir des échelles visuelle analogique (EVA) et de Borg. Résultats : Au terme de cette revalidation, une amélioration significative de tous les paramètres physiques est objectivée. Les performances s’améliorent de 26 % lors de l’épreuve de force isocinétique maximale réalisée au niveau des muscles fléchisseurs et extenseurs de genou, de 43 % lors des épreuves isométriques sous-maximales prolongées, de 42 % lors de l’épreuve ergométrique et de 17 % lors de l’épreuve de marche. Ces bénéfices s’accompagnent d’une réduction systématique des perceptions douloureuses et de la difficulté de l’effort mais aussi d’un accroissement du seuil de sensibilité douloureuse. Les questionnaires de qualité de vie et de quantification de la fatigue confirment l’amélioration fonctionnelle. Le programme répond effectivement aux attentes des fibromyalgiques, comme le démontrent les scores du questionnaire de satisfaction. Discussion : Cette option thérapeutique de revalidation se justifie d’autant plus que la faiblesse des qualités musculaires du fibromyalgique a déjà été soulignée. Cette rééducation devrait idéalement se compléter par diverses interventions comme le soutien psychologique et les stratégies cognitivo-comportementales. Conclusion : Cette étude confirme l’intérêt d’un programme de revalidation musculaire progressive dans le cadre de la prise en charge rééducative de la fibromyalgie. Un tel programme réduit les répercussions physiques et psychologiques défavorables de l’affection. [less ▲]

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See detailEtude comparative des qualités musculaires entre populations fibromyalgique et lombalgique
Maquet, Didier ULg; Demoulin, Christophe ULg; Croisier, Jean-Louis ULg et al

in Revue du Rhumatisme (2006), 73

Introduction : La fibromyalgie et la lombalgie constituent deux affections musculo-squelettiques chroniques présentant de nombreuses similitudes, comme la douleur, la régression des activités physiques ... [more ▼]

Introduction : La fibromyalgie et la lombalgie constituent deux affections musculo-squelettiques chroniques présentant de nombreuses similitudes, comme la douleur, la régression des activités physiques quotidiennes ou encore la désinsertion sociale. L’objectif de ce travail était de comparer des patients fibromyalgiques et des patients souffrant de lombalgies chroniques en termes de qualités musculaires à partir de mesures de force et de fatigabilité musculaires. Patients et méthodes : Vingt sujets contrôles de sexe féminin, vingt patientes fibromyalgiques et vingt patientes souffrant de lombalgies chroniques sont inclus dans l’étude. Le protocole comporte une évaluation de la force maximale isocinétique des muscles fléchisseurs et extenseurs de genou. La résistance musculaire à la fatigue s’apprécie par l’enchaînement de 30 mouvements consécutifs de flexion-extension de genou à intensité maximale. Les perceptions douloureuses et de pénibilité de l’effort sont respectivement mesurées à partir des échelles visuelle analogique (EVA) et de Borg. En outre, l’anxiété et la dépression sont déterminées à partir de l’ « Hospital Anxiety and Depression Scale » (HAD). Résultats : L’ensemble des performances de force et de fatigabilité apparaissent inférieures chez les fibromyalgiques, en comparaison non seulement des sujets contrôles mais aussi des patientes lombalgiques. Ces dernières développent des performances identiques à celles de la population contrôle. Les scores douloureux (EVA) et de pénibilité de l’effort apparaissent pourtant significativement augmentés au sein de ces deux populations pathologiques. Les questionnaires d’anxiété et de dépression (HAD) révèlent des scores significativement supérieurs chez les fibromyalgiques. Discussion : Ces résultats illustrent un profil musculaire différent entre populations fibromyalgique et lombalgique. La réduction majeure des performances développées par les patientes fibromyalgiques peut être mise en relation avec l’état de déconditionnement, les scores d’anxiété et de dépression, la douleur diffuse et d’éventuels mécanismes d’inhibition musculaire. Contrairement à certaines données de la littérature, nous observons des performances musculaires des membres inférieurs relativement préservées chez les patientes lombalgiques. Conclusion : Au terme de cette étude comparative entre populations souffrant de douleurs chroniques, nous démontrons de faibles performances musculaires développées par les membres inférieurs chez les sujets fibromyalgiques. Une mesure des qualités musculaires rachidiennes peut s’avérer plus spécifique dans l’établissement du profil musculaire du lombalgique. [less ▲]

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