References of "Crielaard, Jean-Michel"
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See detailInfluence of Sport Activity on Trunk Muscle Performances
Grosdent, Stéphanie ULg; Demoulin, Christophe ULg; Coupas, Amandine et al

Poster (2010, June 24)

Introduction: Lumbar pain among athletes is a common problem and can be challenging for athletic trainers and therapists. Unfortunately, little is known about the capabilities of trunk muscle function in ... [more ▼]

Introduction: Lumbar pain among athletes is a common problem and can be challenging for athletic trainers and therapists. Unfortunately, little is known about the capabilities of trunk muscle function in elite athletes Therefore, an objective assessment of muscle performance is relevant in injury prevention and rehabilitation. The purpose of this study was to examine the specific trunk muscle strength and endurance in different sports i.e. swimming, rowing and tennis. Methods: We assessed maximum isometric trunk extensor, rotator, flexor and lateroflexor muscle strength as well as trunk extensor muscle endurance of 10 swimmers, 10 rowers, 10 tennismen and 10 sedentary students (control group). Strength was measured by means of specific trunk dynamometers. An adaptation of the Sorensen test was performed to assess trunk extensor endurance. Results: Muscle strength appeared generally higher among athletes than among control subjects. However, differences were statistically significant only with swimmers for trunk flexors (p<0.05) and trunk rotators (p<0.05), with rowers for trunk flexors (p<0.05) and with tennismen for dominant lateroflexors (p<0.05) and non-dominant trunk rotators (p<0.05). No significant bilateral difference appeared for trunk lateralflexors strength. For trunk rotators, tennismen were significantly stronger in the non-dominant side (p<0.05). Trunk extensor endurance was higher among rowers than among the other groups. Conclusion: This study underlined several differences in trunk muscle performance between athletes and control subjects as well as within athletes groups in relation to their sports. Further studies would clarify the full significance of these results with respect to performance and injury. [less ▲]

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See detailEffects of an original training program in healthy elderly subjects
Maquet, Didier ULg; BRONFORT, Stéphanie ULg; LECART, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2010, June), 69(Suppl 3), 313

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See detailEffects of original rehabilitation programs in patients with fibromyalgia syndrome
Maquet, Didier ULg; BRONFORT, Stéphanie ULg; LECART, Marie-Paule ULg et al

in Annals of the Rheumatic Diseases (2010, June), 69(Suppl 3), 706

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See detailLésions musculaires particulières
Crielaard, Jean-Michel ULg; Kaux, Jean-François ULg

Conference (2010, April 13)

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See detailComparison between platelet-rich plasma (PRP) and vascular endothelial growth factor-111 (VEGF-111) as a therapeutic tool in tendon healing process
Kaux, Jean-François ULg; Drion, Pierre ULg; Libertiaux, Vincent ULg et al

Poster (2010, March 20)

Introduction In spite of the availability of various treatments for tendinopathy, this pathology often becomes chronic. For this reason, it is of interest to develop new treatments. Among them, the ... [more ▼]

Introduction In spite of the availability of various treatments for tendinopathy, this pathology often becomes chronic. For this reason, it is of interest to develop new treatments. Among them, the injection of platelet-rich plasma (PRP) seems to be a promising one. Indeed, several animal models have demonstrated that injection of blood platelets can initiate and stimulate tendon and ligament repair by releasing growth factors (GF) locally. Among all the GF released by activated platelets, the vascular endothelial growth factor-A (VEGF-A) is known to induce positive effects on vascular function and angiogenesis, and could be implicated in the healing process of tendons. Recently, a novel VEGF-A isoform was identified, the VEGF-111, a biologically active and proteolysis-resistant VEGF-A isoform, also known to present beneficial effects on ischemic diseases. This prompted us to evaluate whether VEFF-111 would have a therapeutic interest within the framework of the tendon pathology. Aim of the study: We hypothesized that the healing of ruptured Achilles tendons, which is the last stage of the Blazina’s classification, could be improved by injection of VEGF-111 that was compared to the potential effect of PRP injections using a rat model. Methods: A 5mm defect was surgically induced in rat Achilles tendon after resection of plantaris tendon. Rats were divided into 3 groups: A: control (no injection), B: PRP treatment and C: VEGF-111 treatment. Rats received a local injection of PRP (50µL) or VEGF-111 (100ng) in situ after the surgery and were placed in their cage without immobilization. After 5, 15 and 30 days, the rats were euthanized in each group. The traumatized Achilles tendon of each rat was removed and dissected during the healing process. Immediately after sampling, tendons were submitted to a biomechanical tensile test up to rupture, using a “Cryo-jaw”. Results: Our results show that developed force necessary to induce tendon rupture during biomechanical tensile test was more important for tendons which had received an injection of PRP or VEGF-111. Moreover, the tensile force necessary to break tendons is higher with PRP than with VEGF-111. These results were already noticed from day 5 onwards. Conclusion: This experimentation has shown that both PRP and VEGF-111 injections stimulated tendon healing process as suggested by the increased force needed to break tendons during its healing process. Furthermore, this acceleration of the cicatrisation process was more significant with PRP than with VEGF-111. This could be explained by the release from platelets of a “cocktail” of growth factors acting in synergy on the healing process. Acknowledgement This experimentation was partially financed by “Standard de Liège 2007” and “Lejeune-Lechien 2008” grants. [less ▲]

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See detailPlatelet-rich plasma (PRP) increases healing process of rats' Achilles tendons
Kaux, Jean-François ULg; Drion, Pierre ULg; Pascon, Frédéric ULg et al

Conference (2010, March 20)

Introduction Some tendinopathies (epicondylitis, jumper’s knee or Achilles tendinopathy) are frequently considered as rebel to “classic” treatments such as rest, orthotics, NSAIs, electrotherapy ... [more ▼]

Introduction Some tendinopathies (epicondylitis, jumper’s knee or Achilles tendinopathy) are frequently considered as rebel to “classic” treatments such as rest, orthotics, NSAIs, electrotherapy, physiotherapy, corticosteroid infiltrations, extracorporeal shock waves… Recently, several studies, essentially in vitro, demonstrated the positive effects of platelets on the healing process of different tissues: bones, muscles and tendons. Objectives The aim of our experiment was to ascertain whether the use of platelet-rich plasma (PRP) was of interest for accelerating the healing process of Achilles tendon after surgical induced lesion. Methods A 5mm defect was surgically induced in rat Achilles tendon after resection of plantaris tendon. Rats were divided into 2 groups: A: control (no injection) and B: PRP injection. Rats of group B received a PRP injection in situ after the surgery. Afterwards, rats of both groups were placed in their cage without immobilization. After 5, 15 and 30 days, rats were euthanized. The traumatized Achilles tendon of each rat was removed and dissected during this healing process. Immediately after sampling, tendons were submitted to a biomechanical tensile test up to rupture, using a “Cryo-jaw”. Results We demonstrated that the force necessary to induce tendon rupture during biomechanical tensile test study was more important for tendons which had been submitted to an injection of PRP. These results were noticed from day 5 onwards. Discussion – Conclusion This experimentation has shown that PRP injections could accelerate tendons healing process and increase the force needed to break tendons in their healing process. This “accelerating” process can be observed as early as day 5. Acknowledgement This experimentation was partially financed by “Standard de Liège 2007” and “Lejeune-Lechien 2008” grants. [less ▲]

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See detailGPS™ II and GPS™ III: comparison of obtained platelets concentrations
Kaux, Jean-François ULg; Le Goff, Caroline ULg; Renouf, Julien et al

Poster (2010, March 20)

Introduction: Recently, several researches, essentially in vitro, demonstrated the positive effects of platelets on healing process of different tissues: bones, muscles and tendons. The aim of this study ... [more ▼]

Introduction: Recently, several researches, essentially in vitro, demonstrated the positive effects of platelets on healing process of different tissues: bones, muscles and tendons. The aim of this study is to compare the obtained platelets concentration between the new GPS™ III and GPS™ II. Methods: Two blood samples of 52 mL were taken in 5 volunteers and transferred respectively in both GPS™ II and GPS™ III. These devices were centrifuged at 3200 RPM during 15 min. The platelet-rich plasma (PRP) was thus collected and transferred in 6 mL test tubes. Cells count was done using an analyser ABX Micros 60. Results and conclusion: Platelets concentrations were more important from 6.2 up to 9.2 times with GPS™ II and from 7.3 up to 8.3 times with GPS™ III compared to blood samples. Efficiency of the collected platelets was around 92% for GPS™ II and 96% for GPS™ III. Both techniques made it possible to collect platelets but, unfortunately, also a lot of red and white blood cells. None of these parameters showed any significant difference (p>0.05). Conflicts of interests: The 10 devices GPS™ II and GPS™ III were provided gracefully by the firm Biomet Biologics TTC. [less ▲]

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See detailEtude de la fatigue dans l'analyse de la marche
Maquet, Didier ULg; Chapelier, D.; Bouquegneau, Adeline ULg et al

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

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See detailAnalyse critique de l'évaluation de la fatigue musculaire des muscles extenseurs du tronc
Demoulin, Christophe ULg; Grosdent, Stéphanie ULg; Croisier, Jean-Louis ULg et al

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

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See detailEvaluation de la fatigue musculaire des membres supérieurs
Forthomme, Bénédicte ULg; Soubeyrand, G.; Degache, F. et al

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

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See detailLe syndrome de fatigue chronique
Maquet, Didier ULg; Demoulin, Christophe ULg; Crielaard, Jean-Michel ULg et al

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

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See detailEffectiveness of a semi-intensive multidisciplinary outpatient rehabilitation program in chronic low back pain
Demoulin, Christophe ULg; Grosdent, Stéphanie ULg; Capron, Lucile et al

in Joint Bone Spine (2010), 77

Objectives: To evaluate the efficacy of a semi-intensive multidisciplinary outpatient program complying with the requirements of the Belgian National Institute for Health and Disability Insurance and ... [more ▼]

Objectives: To evaluate the efficacy of a semi-intensive multidisciplinary outpatient program complying with the requirements of the Belgian National Institute for Health and Disability Insurance and intended for patients with chronic low back pain. Methods: Weincluded 262 patients with nonspecific chronic low back pain, amongwhom136 (73women and 63 men) with a mean pain duration of 11.3 years completed the outpatient program (36 sessions each lasting 2 h). The program consisted of education about back-sparing techniques, interventions by an occupational therapist and psychologist, and physical reconditioning. Three sessions (sessions 1, 18, and 36) were used to evaluate pain intensity, functional impairment, kinesiophobia, cognitive knowledge, knowledge of appropriate spinal movement technique, and physical performance (trunk muscle strength and endurance, mobility of the pelvis and lumbar spine, and aerobic capacity). Results: All study variables were significantly improved at study completion compared to baseline: pain intensity was decreased by 44%, functional impairment by 40%, and kinesiophobia by 11% whereas knowledge was improved by 59%, back-sparing technique by 95%, trunk muscle strength by 40% on average, trunk extensor muscle endurance by 90%, mobility by 8%, and aerobic capacity by 18%. Conclusions: A semi-intensive multidisciplinary outpatient program was beneficial in patients with chronic low back pain. Careful patient selection and increased patient involvement in the program may help to improve adherence. [less ▲]

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See detailEvaluation de la force des muscles respiratoires chez le sujet sain
Kellens, Isabelle ULg; Crielaard, Jean-Michel ULg; Demaret, Benoît

in Kinesitherapie Revue (2010), 101

Introduction: For several years, respiratory muscles strength can be assessed by various non-invasive or invasive methods. This evaluation is becoming essential in the context of several respiratory ... [more ▼]

Introduction: For several years, respiratory muscles strength can be assessed by various non-invasive or invasive methods. This evaluation is becoming essential in the context of several respiratory diseases. Methods: In a randomized study, 40 healthy subjects purchased respiratory tests (Sniff Nasal Inspiratory Pressure (SNIP), peak inspiratory pressure (PImax) and maximal expiratory pressure (PEmax)) includes a measure of their forced vital capacity and strength of respiratory muscles. Influence of various anthropometric parameters on respiratory muscles strength was assessed through the Macro 5000®, with voluntary and non-invasive tests (SNIP, PImax and PEmax). Results: Gender, height and weight have a significant influence on respiratory muscle strength. Conclusions: Macro 5000® allows the measurement of standardized and reproducible data on respiratory muscles strength (SNIP, PImax and PEmax), in a protocol of about thirty minutes. It also checks the influence of different factors when measuring respiratory muscles strength. [less ▲]

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See detailIntérêt d'une prise en charge multidisciplinaire ambulatoire semi-intensive dans la lombalgie chronique
Demoulin, Christophe ULg; Grosdent, Stéphanie ULg; capron, Lucile et al

in Revue du Rhumatisme (2010), 77

Objectifs. – Cette étude souhaite apprécier l’efficacité d’un programme pluridisciplinaire ambulatoire semi-intensif, élaboré en fonction des exigences des organismes mutualistes belges et destiné aux ... [more ▼]

Objectifs. – Cette étude souhaite apprécier l’efficacité d’un programme pluridisciplinaire ambulatoire semi-intensif, élaboré en fonction des exigences des organismes mutualistes belges et destiné aux patients lombalgiques chroniques. Méthodes. – Parmi 262 patients souffrant de lombalgie chronique non spécifique inclus dans cette étude, 136 (73 femmes et 63hommes présentant des douleurs depuis 11,3 ans en moyenne) ont achevé un programme ambulatoire (36 séances de deux heures) comportant une éducation à l’économie rachidienne, une approche ergonomique et psychologique ainsi que des séances de reconditionnement physique. Trois séances (initiale [séance 1], intermédiaire (séance 18) et finale [séance 36]) évaluent les paramètres d’intensité de la douleur, d’incapacité fonctionnelle, de kinésiophobie, de connaissances cognitives et gestuelles ainsi que les performances physiques (force et endurance des muscles du tronc, mobilité du complexe lombo-pelvi-fémoral, endurance cardiorespiratoire). Résultats. – Tous les paramètres sont significativement améliorés lors de l’évaluation finale : diminution de l’intensité de la douleur (−44 %), des répercussions fonctionnelles (−40 %) et de la kinésiophobie (−11 %), amélioration des connaissances (+59 %) et de la gestuelle vertébrale (+95 %), augmentation de la force des muscles du tronc (+40 % en moyenne), de l’endurance des extenseurs du tronc (+90 %), de la mobilité (+8 %) et de l’endurance cardiorespiratoire (+18 %). Conclusions. – Une prise en charge pluridisciplinaire ambulatoire semi-intensive s’avère bénéfique pour les patients lombalgiques chroniques. Une adaptation des critères d’inclusion et une implication accrue du patient dans sa rééducation contribueraient à améliorer l’observance du programme. [less ▲]

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See detailFibromyalgia and related conditions: Electromyogram profile during isometric muscle contraction
Maquet, Didier ULg; Croisier, Jean-Louis ULg; Dupont, Catherine ULg et al

in Joint Bone Spine (2010), 77

Objectives: To evaluate electromyogram (EMG) profiles in patients with three related conditions: fibromyalgia, chronic fatigue syndrome, and depression. Methods: We studied 44 healthy volunteers, 22 ... [more ▼]

Objectives: To evaluate electromyogram (EMG) profiles in patients with three related conditions: fibromyalgia, chronic fatigue syndrome, and depression. Methods: We studied 44 healthy volunteers, 22 patients with fibromyalgia, 11 patients with chronic fatigue syndrome, and 10 patients admitted for depression. The trapezius electromyogram was recorded during maximally sustained, bilateral, 90◦ abduction of the shoulders. EMG signal frequency and amplitude were measured throughout the test. Results: In the fibromyalgia group, isometric contraction duration was significantly shorter than in the other two patient groups (P < 0.001) and the EMG frequency and amplitude pattern indicated premature discontinuation of the muscle contraction. Findings in the chronic fatigue patients were similar to those in the healthy controls. The patients with depression had a distinctive EMG profile characterized by excessive initial motor-unit recruitment with a shift in the frequency spectrum. Conclusions: Fibromyalgia was associated with a specific EMG pattern indicating premature discontinuation of the muscle contraction. Therefore, maximal voluntary muscle contraction tests may be of limited value for assessing function in fibromyalgia patients. Chronic fatigue syndrome patients had similar EMG findings to those in the healthy controls. The EMG alterations in the patients with depression were consistent with manifestations of psychomotor retardation. [less ▲]

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See detailRehabilitation in osteoporotic subjects - Myth or reality?
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg; Croisier, Jean-Louis ULg et al

in European Musculoskeletal Review (2010), 5(1), 36-39

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See detailRehabilitation in osteoarthritis
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg; Croisier, Jean-Louis ULg et al

in Therapy (2010), 7(6), 669-674

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See detailCritères de reprise sportive après chirurgie tendineuse
Kaux, Jean-François ULg; Crielaard, Jean-Michel ULg

Conference (2009, October 26)

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