References of "Vanderthommen, Marc"
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See detailDoes electrical stimulation of knee extensor and flexor muscles induce DOMS?
Vanderthommen, Marc ULg; Triffaux, Mylène; Demoulin, Christophe ULg et al

in Loland, S.; Fasting, K.; Hallen, J. (Eds.) et al Book of Abstracts of 14th annual Congress of the European College of Sport Science (2009, June)

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See detailCardiovascular Responses to Static Assessments of Trunk Muscles
Demoulin, Christophe ULg; Grosdent, Stéphanie ULg; Bury, Thierry ULg et al

in Journal of Musculoskeletal Pain (2009), 17(4), 378-389

Objectives: To investigate the cardiovascular responses to standard static assessments of strength and endurance of trunk extensor muscles. Methods: Trunk extensor performances of ten healthy men, 48.2±5 ... [more ▼]

Objectives: To investigate the cardiovascular responses to standard static assessments of strength and endurance of trunk extensor muscles. Methods: Trunk extensor performances of ten healthy men, 48.2±5.6 years, and 10 healthy women, 49±5.7 years, were assessed by means of a maximum static strength test [consisting in maximal voluntary contractions [MVC] performed with a specific dynamometer], and two static endurance tests [the Sorensen test, and a 50 percent MVC test]. Heart rate [HR], auscultatory systolic [SBP], and diastolic blood pressure [DBP] were recorded throughout the tests. Results: The MVCs induced significant increases of HR and SBP [mean peak values averaging 90 [female] to 95 [male] beats per minute and 133 [female] to 141 [male] mmHg]. The HR, SBP, and DBP values increased significantly across time throughout both endurance static tests. At the end of these tests, mean HR, SBP, and DBP reached 114 to 122 beats per minute, 172 to 185 mmHg, and 112 to 120 mmHg. Genders differed significantly with regard to holding times [longer in females], but a gender effect was only found on SBP [higher in males]. Heart rate and SBP increases were significantly higher in males than in female subjects. Conclusions: The strength test seems less demanding than expected, though our results need to be confirmed. Standard static endurance tests yield sizeable functional stress on the cardiovascular system. Our study emphasizes the need to exclude subjects with cardiac trouble from such efforts and suggests the relevance of monitoring cardiovascular parameters if tests are performed until exhaustion. [less ▲]

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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 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 detailPrevention of low back injuries in sports
Vanderthommen, Marc ULg

in Isokinetics & Exercise Science (2008), 16(3), 171

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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 detailElectrical stimulation as a modality to improve performance of the neuromuscular system
Vanderthommen, Marc ULg; Duchateau, Jacques

in Exercise and Sport Sciences Reviews (2007), 35(4), 180-185

Transcutaneous neuromuscular electrical stimulation (NMES) can modify the order of motor unit recruitment and has a profound influence on the metabolic demand associated with producing a given muscle ... [more ▼]

Transcutaneous neuromuscular electrical stimulation (NMES) can modify the order of motor unit recruitment and has a profound influence on the metabolic demand associated with producing a given muscle force. Because of these differences, interventions that combine NMES with voluntary contractions can provide beneficial outcomes for some individuals. The adaptations evoked by NMES are not confined to the activated muscle but also involve neural adaptations through reflex inputs to the spinal cord and supraspinal centers. [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 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 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 detailElectrothérapie. Electrostimulation.
Crepon, F.; DOUBRERE, J. F.; Vanderthommen, Marc ULg et al

in Encyclopédie médico-chirurgicale (EMC) (2007)

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See detailLes stimulations électriques ont-elles de réelles vertus antalgiques ? Revue de la littérature et expérience au Centre de la Douleur (CHU Liège)
Maquet, Didier ULg; Vanderthommen, Marc ULg

in Abstract book du Symposium du CKULg « Actualités en électrophysiothérapie » (Liège) (2006, November)

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See detailElectrostimulation du muscle dénervé (Questions-réponses)
Vanderthommen, Marc ULg

in Correspondances en Nerf & Muscle (2006), 1(3-4), 31-32

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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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