References of "Demoulin, Christophe"
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See detailPrise en charge du sportif lombalgique : analyse critique et perspectives
Vanderthommen, Marc ULg; Demoulin, Christophe ULg

in Abstract book du Congrès de l’Association Belge des Kinésithérapeutes du Sport « La Réathlétisation » (2008, May)

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See detailThe Ability of Isoinertial Assessment to Monitor Specific Training Effects
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Scimar, Nathalie ULg et al

in Journal of Sports Medicine & Physical Fitness (2008), 48(1), 55-64

AIM: The aim of this study was to investigate the ability of isoinertial assessment to monitor training effects. Both parametric and curve analysis of the results were used to underline the specificity of ... [more ▼]

AIM: The aim of this study was to investigate the ability of isoinertial assessment to monitor training effects. Both parametric and curve analysis of the results were used to underline the specificity of maximal strength and maximal velocity resistance training methods. METHODS: Twenty-four untrained subjects were randomly assigned into three groups: a maximal strength-training group (heavy loads: 80% to 98% of the one repetition maximum [1-RM]), a maximal velocity-training group (light loads: 25% to 50% of 1-RM) and a control group. All the subjects were tested in bench press exercises before and after the 6-week training period. An isoinertial dynamometer was used to assess velocity and power at four increasing loads: 35%, 50%, 70% and 95% of the 1-RM load. Post-test protocol also included a trial at 105% of the 1-RM load. RESULTS: Isoinertial assessment demonstrated for both training groups significant gains at each load. Some specific adaptations appeared: strength training presented a greater increase for average power (+49%, P<0.001) and average velocity (+48%, P<0.001) at 95% of 1-RM, while velocity training emerged as a more effective way to improve performance at 35% and 50% of 1-RM (+11 to 22%) in comparison with strength training (+7 to 12%). The analysis of power and velocity curves specified that strength training enhanced performance earlier in the movement, while velocity training extended the propulsive action at the end of movement. CONCLUSION: The original combination of parametric and curve isoinertial assessment appears to be a relevant method for monitoring specific training effects. The complementarity of both strength and velocity training programmes underlined in this study could lead to practical applications in profiling training programmes. [less ▲]

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See detailRelevance of inertial fatigue test in sport applications
Jidovtseff, Boris ULg; Cordonnier, Caroline ULg; Binard, Anne-Sophie et al

in Isokinetics & Exercise Science (2008), 16(3), 190

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See detailLa stabilisation fonctionnelle lombaire : Défintion du concept et arguments scientifiques
Demoulin, Christophe ULg; DISTREE, Vincent ULg; TOMASELLA, Marco ULg et al

in Abstract book des Mardis de la Kinésithérapie (2008)

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See detailReproducibility and Suitability of Clinical Assessments of Trunk Flexor and Extensor Muscles
Demoulin, Christophe ULg; Sac, Delphine; Serre, Laurent et al

in Journal of Musculoskeletal Pain (2008), 16

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See detailEvaluation inertielle : état de la question et perspectives
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Demoulin, Christophe ULg et al

in Science & Sports (2008), 20

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See detailIntérêts du réentraînement à l'effort dans la fibromyalgie et autres syndromes apparentés
Maquet, Didier ULg; Demoulin, Christophe ULg; Croisier, Jean-Louis ULg et al

in Annales de Réadaptation et de Médecine Physique (2007), 50(6), 356-362

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See detailBenefits of Physical Training in Fibromyalgia and Related Syndromes
Maquet, Didier ULg; Demoulin, Christophe ULg; Croisier, Jean-Louis ULg et al

in Annales de Réadaptation et de Médecine Physique (2007), 50(6), 363-368

OBJECTIVE: To review the published information on physical training for fibromyalgia (FM) and related syndromes. METHODS: A search of Medline literature (via Ovid and PubMed) with the following keywords ... [more ▼]

OBJECTIVE: To review the published information on physical training for fibromyalgia (FM) and related syndromes. METHODS: A search of Medline literature (via Ovid and PubMed) with the following keywords: FM, chronic fatigue syndrome, therapy, rehabilitation, aerobic, exercise, and cognitive behavioral therapy. The reference lists of articles were examined for additional related articles. RESULTS: Several studies investigated the benefits of graded exercise therapy for patients with FM or related syndromes. Although some systematic reviews have not established an unequivocal benefit of physical training, most authors report a benefit for patients with chronic pain or fatigue. Ideally, such a therapy should be a part of multidisciplinary program. Muscular rehabilitation is reserved for preventing the deconditioning syndrome often reported in patients and the vicious cycle of pain, avoidance and inactivity behaviors, or even kinesiophobia, deconditioning, incapacity and psychological distress. CONCLUSION: This review emphasizes the relevance of graded physical training for treating FM and related syndromes. The development of rehabilitation centers, with experts able to propose a relevant therapy to patients with chronic pain or fatigue, should help alleviate this public health problem. [less ▲]

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See detailExplorations algo-fonctionnelles comparatives entre populations fibromyalgique et lombalgique chronique
Demoulin, Christophe ULg; Maquet, Didier ULg; Delcourt, D. et al

in Revue du Rhumatisme (2007), 74(10-11), 982

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See detailBenefits of an out-patient multidisciplinary rehabilitation program in the treatment of chronic low back pain
Vanderthommen, Marc ULg; Demoulin, Christophe ULg; GROSDENT, Stéphanie ULg et al

in Abstract book of 6th Interdisciplinary World Congress on Low Back & Pelvic Pain (2007)

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See detailElectromyographic activity of the knee flexors and extensors during isokinetic fatigue assessments
Maquet, Didier ULg; Bosquet, L.; Forthomme, Bénédicte ULg et al

in Isokinetics & Exercise Science (2007), 15

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See detailLumbar functional instability : a critical appraisal of the literature
Demoulin, Christophe ULg; Distree, Vincent ULg; Tomasella, Marco ULg

in Annales de Réadaptation et de Médecine Physique (2007), 50

The goals of this paper were to define the concept of instability, to describe the way it can be assessed, to report on impairments of the spine stabilization system in patients with low back pain (LBP ... [more ▼]

The goals of this paper were to define the concept of instability, to describe the way it can be assessed, to report on impairments of the spine stabilization system in patients with low back pain (LBP), to cite the recommended exercises and, lastly, to examine the results of programs based on lumbar stabilization. Patients suffering from lumbar instability appear to belong to a particular subgroup of subjects with LBP. In the literature, several definitions of lumbar instability have been proposed. Radiological instability, for instance, differs from functional instability. Diagnosis remains difficult: the relevance of static and dynamic radiographs appears limited whereas several signs and clinical instability tests have been described in the literature but remain controversial. The functional stability system of the spine consists of three interdependent components: the passive, the active and the neuromuscular subsystems. The benefits of lumbar stabilization programs for LBP patients have been underlined. Lumbar stabilization exercises are aimed at sensorimotor reprogrammation of spine stabilizer muscles intended to improve their motor control skill and delay of response and consequently to compensate for weakness of the passive stabilization system. [less ▲]

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See detailL’instabilité lombaire fonctionnelle : revue de la littérature
Demoulin, Christophe ULg; Distree, Vincent ULg; Tomasella, Marco ULg et al

in Annales de Réadaptation et de Médecine Physique (2007), 50

Les patients lombalgiques présentant une instabilité lombaire semblent constituer un sous-groupe particulier. De nombreuses définitions de l’instabilité lombaire ont été proposées. L’instabilité ... [more ▼]

Les patients lombalgiques présentant une instabilité lombaire semblent constituer un sous-groupe particulier. De nombreuses définitions de l’instabilité lombaire ont été proposées. L’instabilité radiologique se distingue de l’instabilité fonctionnelle. Leur diagnostic demeure délicat : l’intérêt des clichés radiographiques statique et dynamique semble limité tandis que plusieurs signes et tests cliniques de l’instabilité ont été décrits dans la littérature mais demeurent controversés. Trois éléments composent le système de stabilisation fonctionnelle de la colonne : les sous-systèmes passif, actif et neuromusculaire qui sont interdépendants. L’intérêt de programmes de stabilisation lombaire pour les patients lombalgiques a été démontré. Les exercices de stabilisation lombaire visent une reprogrammation sensorimotrice des muscles stabilisateurs de la colonne afin d’améliorer leur potentiel, leur temps de réponse et ainsi compenser des déficits du système passif de stabilisation. Cet article souhaite définir le concept d’instabilité, préciser les moyens de son évaluation, appréhender les anomalies du système de stabilisation présentes chez les sujets lombalgiques, décrire les principaux exercices recommandés dans la littérature et enfin rapporter les bénéfices observés à la suite de programmes de stabilisation lombaire. [less ▲]

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See detailSpinal muscle evaluation in healthy individuals and low-back-pain patients: A literature review
Demoulin, Christophe ULg; Crielaard, Jean-Michel ULg; Vanderthommen, Marc ULg

in Joint Bone Spine (2007), 74

This article reviews available techniques for spinal muscle investigation, as well as data on spinal muscles in healthy individuals and in patients with low back pain. In patients with chronic low back ... [more ▼]

This article reviews available techniques for spinal muscle investigation, as well as data on spinal muscles in healthy individuals and in patients with low back pain. In patients with chronic low back pain, medical imaging studies show paraspinal muscle wasting with reductions in cross-sectional surface area and fiber density. In healthy individuals, the paraspinal muscles contain a high proportion of slow-twitch fibers (Type I), reflecting their role in maintaining posture. The proportion of Type I fibers is higher in females, leading to better adaptation to aerobic exertion compared to males. Abnormalities seen in paraspinal muscles from patients with chronic low back pain include marked Type II fiber atrophy, conversion of Type I to Type II fibers, and an increased number of nonspecific abnormalities. Limited data are available from magnetic resonance spectroscopy used to investigate muscle metabolism and from near infrared spectroscopy used to measure oxygen uptake by the paraspinal muscles. Surface electromyography in patients with chronic low back pain shows increased paraspinal muscle fatigability, often with abolition of the flexion-relaxation phenomenon. [less ▲]

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See detailExploration de la musculature rachidienne du sujet sain et lombalgique: revue de la littérature
Demoulin, Christophe ULg; Crielaard, Jean-Michel ULg; Vanderthommen, Marc ULg

in Revue du Rhumatisme (2007), 74

Cet article présente les différentes techniques d’investigation de la musculature rachidienne et analyse les données relatives aux muscles spinaux de sujets sains et lombalgiques chroniques. L’atrophie ... [more ▼]

Cet article présente les différentes techniques d’investigation de la musculature rachidienne et analyse les données relatives aux muscles spinaux de sujets sains et lombalgiques chroniques. L’atrophie des muscles paravertébraux de lombalgiques chroniques et notamment une réduction de leur surface de section et de leur densité musculaire peuvent être objectivées par l’imagerie médicale. La biopsie musculaire des muscles spinaux de sujets sains démontre un pourcentage élevé de fibres lentes (type I) lié à leur fonction posturale ; les femmes se caractérisent par une meilleure adaptation à l’effort aérobie s’expliquant par une plus grande section musculaire relative occupée par les fibres de type I. Les muscles spinaux de lombalgiques chroniques présentent soit une atrophie marquée des fibres de type II, soit une conversion des fibres de type I en type II, soit la présence accrue d’anomalies non-spécifiques. La spectroscopie par résonance magnétique et en proche infrarouge, explorant respectivement le métabolisme musculaire et l’oxygénation tissulaire de la musculature spinale, restent encore peu décrites. L’électromyographie de surface confirme, chez les lombalgiques chroniques, la fatigabilité accrue des muscles spinaux et l’absence fréquente du phénomène de flexion–relaxation. [less ▲]

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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 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 detailLe point sur le syndrome de fatigue chronique
Maquet, Didier ULg; Demoulin, Christophe ULg; Crielaard, Jean-Michel ULg

in Annales de Réadaptation et de Médecine Physique (2006), 49(6), 337-347

Objectif. – Rédiger un article de synthèse relatif au syndrome de fatigue chronique. Matériel et méthodes. – La recherche bibliographique aborde (à partir de Medline via Ovid® et PubMed®) les mots clés ... [more ▼]

Objectif. – Rédiger un article de synthèse relatif au syndrome de fatigue chronique. Matériel et méthodes. – La recherche bibliographique aborde (à partir de Medline via Ovid® et PubMed®) les mots clés suivants : chronic fatigue syndrome, diagnosis, classification, epidemiology, etiology, physiopathology, metabolism, microbiology, immunology, virology, psychology, drug therapy, rehabilitation, therapy. Une analyse de proche en proche est ensuite réalisée à partir des citations répertoriées. Résultats. – Le syndrome de fatigue chronique, défini en 1988 par le centre de contrôle et de prévention des maladies aux États-Unis, présente une prévalence atteignant 0,2 à 0,7 % au sein de la population générale. La définition est ensuite révisée par Fukuda et al. (1994). En dépit de nombreux travaux menés dans des domaines divers (bactériologique, virologique, immunologique, neuromusculaire, psychologique…), la physiopathologie demeure inconnue. Conclusion. – Ce syndrome, entraînant diverses répercussions cliniques et fonctionnelles majeures, devrait idéalement se structurer comme un modèle « biopsychosocial ». La revalidation musculaire progressive, complétée par une thérapie cognitivocomportementale, constitue un élément essentiel de toute prise en charge thérapeutique. [less ▲]

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