Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
See detailEcaussinnes 2012 - Spring Blues Festival
Sacré, Robert ULg

E-print/Working paper (2012)

Compte-rendu du Spring Blues Festival d'Ecaussinnes, le 19 mai 2012

Detailed reference viewed: 13 (0 ULg)
Full Text
See detail"Ecce ego, mitte me". Antoine Thomas ou le désir des Indes
Delfosse, Annick ULg

in Parmentier, Isabelle; Hermans, Michel (Eds.) De la Belgique à la Chine. Regards croisés à partir d’Antoine Thomas (in press)

Detailed reference viewed: 82 (16 ULg)
Full Text
Peer Reviewed
See detailThe eccentric intervention for prevention: muscle and tendon aspects
Kaux, Jean-François ULg; Hody, Stéphanie ULg; Delvaux, François ULg et al

in European Journal of Sports Medicine (2014), 1(2), 37-46

The muscle-tendon pathologies remain very common in sport as well as to manual workers. An action of primary and secondary prevention is crucial if we are to prevent the occurrence of these pathologies ... [more ▼]

The muscle-tendon pathologies remain very common in sport as well as to manual workers. An action of primary and secondary prevention is crucial if we are to prevent the occurrence of these pathologies and prevent recurrence. The eccentric contractions marked by the removal of muscle insertions, gives them certain preventive and rehabilitative characteristics. It is now clearly shown that the eccentric work applied to the muscle-tendon complex, leads to progressive structural changes. These adaptations allow the muscles and tendons to better suit external stresses under which they are subjected and thereby reduce the lesion risk but also to prevent recurrence. Finally, it is also accepted that only the sub maximal eccentric exercise gradually increased helped protect (up to 1 year) of Delayed Onset Muscle Soreness in case of severe and unusual eccentric work. [less ▲]

Detailed reference viewed: 17 (1 ULg)
Full Text
Peer Reviewed
See detailEccentric muscle contractions: risks and benefits
Hody, Stéphanie ULg; Croisier, Jean-Louis ULg; Lacrosse, Zoé ULg et al

in Proceedings of the Belgian Royal Academies of Medicine (2014)

La contraction musculaire excentrique se caractérise par le développement d'une tension musculaire associée à l'étirement concomitant du complexe musculo-tendineux. Ce mode de contraction présente un ... [more ▼]

La contraction musculaire excentrique se caractérise par le développement d'une tension musculaire associée à l'étirement concomitant du complexe musculo-tendineux. Ce mode de contraction présente un intérêt croissant dans de nombreux domaines tels que l’entraînement sportif, la médecine physique et la rééducation. De plus, certaines indications de l’entraînement en mode excentrique ont été posées chez des patients porteurs de maladies chroniques. Cependant, lorsqu’il est réalisé de manière intense et inhabituelle, l’exercice excentrique peut entraîner diverses altérations de l’ultrastructure musculaire qui se manifestent par une série de symptômes cliniques comme des douleurs musculaires d’apparition retardées (Delayed-Onset Muscle Soreness, DOMS) et une altération de la fonction musculaire. Malgré la littérature abondante consacrée à la description du phénomène des DOMS, aucune théorie cohérente n’est actuellement disponible pour expliquer la survenue différée des sensations douloureuses et des signes associés. De même, toujours à l’analyse de la littérature, on ne peut que constater l’absence de solution thérapeutique susceptible d’atténuer significativement l’intensité des DOMS et de leurs conséquences fonctionnelles associées à l’exception, paradoxalement, de l’exercice excentrique lui-même qui, lorsqu’il est proposé en conditions sous-maximales d’intensité progressivement croissante, semble constituer la seule prévention réellement efficace de l’apparition des DOMS. De même, si l’efficacité d’un entraînement spécifique dans la prévention des DOMS a été confirmée par de nombreux travaux, la nature de cet effet protecteur reste sujette à conjectures. Nous sommes néanmoins convaincus qu’une meilleure compréhension des réponses aiguës et/ou adaptatives à l’exercice excentrique contribuerait d’une part, à la mise au point d’interventions thérapeutiques efficaces et d’autre part, à élucider les évènements moléculaires impliqués dans des conditions pathologiques telles que les myalgies et certaines maladies neuromusculaires. [less ▲]

Detailed reference viewed: 19 (7 ULg)
Full Text
Peer Reviewed
See detailEccentric rehabilitation for elbow hypermobility
Kaux, Jean-François ULg; Forthomme, Bénédicte ULg; FOIDART, Marguerite ULg et al

in Journal of Novel Physiotherapies (2013), 3(6), 1805

Introduction: Joint hypermobility involves an increased range of motion compared to normal amplitudes for the same age, sex and ethnic group. Patients with hypermobility suffer from joints problems and ... [more ▼]

Introduction: Joint hypermobility involves an increased range of motion compared to normal amplitudes for the same age, sex and ethnic group. Patients with hypermobility suffer from joints problems and chronic pain is the most frequently reported symptom. Eccentric muscle strengthening could be very important to protect hypermobile joints. Case report: An Ehler-Danlos syndrome patient presented pain in the right elbow and the right wrist after a season of tennis. Her physiotherapy (18 sessions, 3 times a week) consisted of wrist prono-supination and flexion-extension muscle group reinforcement and proprioceptive training. To protect the wrist against excessive load, the eccentric strengthening exercises of prono-supinator and flexor-extensor muscles of elbow and wrist were undertaken gradually, at increasing speeds [30°/s, 60°/s, and 90°/s] within a limited range of motion in flexion and extension, on an isokinetic device after an evaluation. She was also given an ortheosis restricting the joint range of motion of the wrist. The patient rapidly noted a decrease in pain and an increase in the stability of her right arm even when playing tennis. Isokinetic evaluation objectified an improvement in maximal torque of 20 to 25% in flexion-extension muscles of the right elbow. She was also given individualized home exercises. Conclusion: The goal of rehabilitation is to avoid hypermobility by using the muscles as a protective brake in the control of joint positioning. Muscles can be reinforced in eccentric mode with starting position at the maximum length of these muscles when unstreched. The exercises can be carried out safely on an isokinetic device, at slow speed and limited range of joint motion to avoid risk of luxation. Thus, in this case report, the eccentric exercises using an isokinetic device were effective to safely reinforce the muscles as a protective brake for joint hypermobility. [less ▲]

Detailed reference viewed: 75 (12 ULg)
Full Text
Peer Reviewed
See detailEccentric training for elbow hypermobility
Kaux, Jean-François ULg; Delvaux, François ULg; Forthomme, Bénédicte ULg et al

in British Journal of Sports Medicine (2014, April), 48(7), 154

Background: Patients with hypermobility suffer from joints problems and chronic pain is the most frequently reported symptom. Objective: Eccentric muscle strengthening could be very important to protect ... [more ▼]

Background: Patients with hypermobility suffer from joints problems and chronic pain is the most frequently reported symptom. Objective: Eccentric muscle strengthening could be very important to protect hypermobile joints. Design: Case report. Patient: A girl (16 y.o.) affected by an Ehler-Danlos syndrome presented pain in the right elbow and the right wrist after a season of tennis. Interventions: Her training consisted of wrist prono-supination and flexion-extension muscle group reinforcement and proprioceptive training. To protect the wrist against excessive load, the eccentric strengthening exercises of prono-supinator and flexor-extensor muscles of elbow and wrist were undertaken gradually, at increasing speeds within a limited range of motion in flexion and extension, on an isokinetic device after an evaluation. She was also given an orthesis restricting the joint range of motion of the wrist. Main outcome measurements: The evaluation was made by isokinetic evaluation, visual analog scale and MOS-SF36 questionnaire before and after training. Results: The patient rapidly noted a decrease in pain and an increase in the stability of her right arm even when playing tennis. Isokinetic evaluation objectified a significant improvement in maximal torque in flexion-extension muscles of the right elbow. She was also given individualized home exercises. Conclusions: The goal of this eccentric training is to avoid hypermobility by using the muscles as a protective brake in the control of joint positioning. Muscles can be reinforced in eccentric mode with starting position at the maximum length of these muscles when unstreched. The exercises can be carried out safely on an isokinetic device, at slow speed and limited range of joint motion to avoid risk of luxation. Thus, in this case report, the eccentric exercises using an isokinetic device were effective to safely reinforce the muscles as a protective brake for joint hypermobility and prevent pain during practicing tennis. [less ▲]

Detailed reference viewed: 33 (5 ULg)
Full Text
Peer Reviewed
See detailEccentric training improves tendon biomechanical properties: a rat model
Kaux, Jean-François ULg; Drion, Pierre ULg; Libertiaux, Vincent et al

in British Journal of Sports Medicine (2014, April), 48(7), 155

Background: Even if eccentric exercises appear favourable in primary prevention of tendons lesions and, especially, in secondary prevention after tendinopathy, the biomechanical changes to the tissue are ... [more ▼]

Background: Even if eccentric exercises appear favourable in primary prevention of tendons lesions and, especially, in secondary prevention after tendinopathy, the biomechanical changes to the tissue are not yet clear. Objective: We aimed to better define the biomechanical changes that affect healthy tendon after eccentric and concentric training. Design: Randomised controlled trial. Participants: Eighteen Sprague-Dawley rats of 2 months. Interventions: The six rats in the control group (U) were not subjected to physical exercise. The 12 remaining rats (6 in each group) ran on a treadmill set at a +15° incline for concentric training (C) or a -15° incline for eccentric training (E), at a speed of 17 m/min for 1 h, three times per week for 5 weeks. Main Outcome Measurements: The tricipital, patellar and Achilles tendons were subsequently removed to perform a traction test until rupture, and a histological analysis was performed. Results: There was a significant improvement in the rupture force of the patellar and tricipital tendons between the U and E groups. The tricipital tendons in the control group presented a significantly smaller cross-section than the E- and C-trained groups, but none between E and C groups. No significant difference was observed for the mechanical stress at rupture per surface unit between the three groups for all three tendons. However, a tendency towards improvement these values was observed between the trained and the U groups for the patellar tendon. Histological studies demonstrated the tendency of the development of a greater number of blood vessels and a larger quantity of collagen in the eccentric group. Conclusions: The mechanical properties of tendons in rats improve after specific training, especially following eccentric training. Our results partly explained how mechanical loading, especially in eccentric mode, could improve the tendon structure. [less ▲]

Detailed reference viewed: 51 (4 ULg)
Full Text
Peer Reviewed
See detailEccentric training improves tendon biomechanical properties: a rat model
Kaux, Jean-François ULg; Drion, Pierre ULg; Libertiaux, Vincent et al

in Journal of Orthopaedic Research (2013), 31(1), 119-124

Introduction: The treatment of choice for tendinopathies is eccentric reeducation. Although the clinical results appear favourable, the biomechanical changes to the tissue are not yet clear. Even if the ... [more ▼]

Introduction: The treatment of choice for tendinopathies is eccentric reeducation. Although the clinical results appear favourable, the biomechanical changes to the tissue are not yet clear. Even if the mechanotransduction theory is commonly accepted, the physiology of tendons is not clearly understood. We aimed to better define the biomechanical and histological changes that affect healthy tendon after eccentric and concentric training. Materiel and Methods: This study compared the effects of 2 methods of training (eccentric (E) training and concentric (C) training) with untrained (U) rats. The animals were trained over a period of 5 weeks. The tricipital, patellar and Achilles tendons were removed, measured and a tensile test until failure was performed. A histological analysis (hematoxylin and eosin and Masson's trichrome stains) was also realized. Results: There was a significant increase in the rupture force of the patellar and tricipital tendons between the U and E groups. The tricipital tendons in the control group presented a significantly smaller cross-sectional area than the E- and C-trained groups, but none was constated between E and C groups. No significant difference was observed for the mechanical stress between the three groups for all three tendons. Histological studies demonstrated the development of a greater number of blood vessels and a larger quantity of collagen in the E group. Discussion and conclusion: The mechanical properties of tendons in rats improve after specific training, especially following eccentric training. Our results partly explained how mechanical loading, especially in eccentric mode, could improve the healing of tendon. [less ▲]

Detailed reference viewed: 128 (45 ULg)
Peer Reviewed
See detailEccentric training model in chronic epicondylitis treatment
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Foidart-Dessalle, Marguerite ULg et al

in Proceedings of the 7th Annual Congress of the European College of Sport Science (2002, July)

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailAn ecdysteroid (22-acetyl-20-hydroxyecdysone) from the defense gland secretion of an insect: Chrysolina carnifex (Coleoptera : Chrysomelidae)
Laurent, Pascal ULg; Braekman, Jean-Claude; Daloze, Désiré et al

in Chemoecology (2003), 13(3), 109-111

22-Acetyl-20-hydroxyecdysone was identified as a major component in the secretion of elytral and pronotal glands of Chrysolina carnifex, at an estimated concentration of 1.5 x 10(-1) M. This unexpected ... [more ▼]

22-Acetyl-20-hydroxyecdysone was identified as a major component in the secretion of elytral and pronotal glands of Chrysolina carnifex, at an estimated concentration of 1.5 x 10(-1) M. This unexpected high concentration of an ecdysteroid in an exocrine secretion of an insect is discussed in terms of its potential defensive function, and in the light of steroid production in similar glands of closely related leaf beetles. [less ▲]

Detailed reference viewed: 6 (0 ULg)
See detailEchange et sociabilité au sûq : pour une critique de l’approche de Clifford Geertz
Nachi, Mohamed ULg

Scientific conference (1999, March)

Etude portant sur les transactions économiques dans un marché local en Tunisie

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailL'échange international de renseignements à des fins fiscales
Docclo, Caroline ULg; Knaepen, S.

in Journal de Droit Fiscal (2012)

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailLes échanges culturels
Mescoli, Elsa ULg

in AA.VV. (Ed.) Nass Belgica (in press)

Elaborer une réflexion à propos des passages d’éléments et caractères d’une culture à l’autre implique une préoccupation académique qui oblige à donner une définition au concept de culture. La culture de ... [more ▼]

Elaborer une réflexion à propos des passages d’éléments et caractères d’une culture à l’autre implique une préoccupation académique qui oblige à donner une définition au concept de culture. La culture de n’importe quel groupe de personnes ne peut pas être réduite à une liste d’éléments, bien que souvent cela soit fait pour permettre le développement de certains discours et politiques. Les frontières entre une culture et l’autre semblent se briser, non seulement à cause de la rencontre constante des différents gens grâce à la mobilité concrète et à l’imagination dans le monde globalisé, mais aussi de ce qu’une « logique métisse » met en évidence : les cultures ne seraient que le résultat d’une invention arbitraire et fonctionnelle de spécificités à partir d’un syncrétisme originaire. L’analyse des échanges culturels se situe alors entre la fluidité d’un concept (culture lue, interprétée, écrite ou inventée) et la concrétude de faits complexes. Les habitudes alimentaires dans la diaspora marocaine que je traite dans cet article constituent un de ces faits, terrain où s’entrelacent éléments biologiques, questions économiques, goûts, fois, normes, traditions, changements et où la rencontre avec l’altérité culturelle déclenche des dynamiques dignes de grandes attentions. [less ▲]

Detailed reference viewed: 18 (3 ULg)
Full Text
See detailEchanges gazeux au niveau pulmonaire
Brichant, Jean-François ULg

in Physiologie en Anesthésiologie (1995)

Detailed reference viewed: 35 (0 ULg)
Peer Reviewed
See detailL'échangeur, exercice structuré en dynamique des groupes
Faulx, Daniel ULg

in Cahiers Internationaux de Psychologie Sociale (1998), 3

Detailed reference viewed: 441 (30 ULg)
Full Text
See detailEchantillonnage à probabilité de sélection proportionnelle à la prédiction et inventaires forestiers.
Hebert, Jacques ULg; Rondeux, Jacques ULg

in Annales de Gembloux (1991), 97(3), 221-231

The so-called 3 P sampling system (sampling with Probability Proportional to Prediction) is a variation of list sampling that does not require a list of population elements prior to the inventory. Every ... [more ▼]

The so-called 3 P sampling system (sampling with Probability Proportional to Prediction) is a variation of list sampling that does not require a list of population elements prior to the inventory. Every tree in a timber sale has to be visited and one needs an estimate of the total volume. In order to correct the total estimated volume, a small number of sample trees are selected according to a unequal-probability selection rule. The predicted tree volume is paired with a random number. Trees with predicted values larger than or equal to the random number are precisely measured. The average ratio of the measured volume to the estimated volume in the sample is used to adjust the total estimated volume. Such a system of inventory is often designed where a highly precise estimate of the volume or value of standing trees is required. [less ▲]

Detailed reference viewed: 30 (4 ULg)
Peer Reviewed
See detailEchantillonnage avec probabilités inégales et sans remise : comparaison de l'estimateur de Horvitz et Thompson à des alternatives plus simples
Bertrand, F.; Palm, Rodolphe ULg

in Revue de Statistique Appliquée (1990), XXXVIII(3), 5-21

Pour un échantillonnage réalisé avec probabilités inégales et sans remise, les probabilités d'inclusion des unités d'échantillonnage permettant l'utilisation de l'estimateur du total d'HOROWITZ et ... [more ▼]

Pour un échantillonnage réalisé avec probabilités inégales et sans remise, les probabilités d'inclusion des unités d'échantillonnage permettant l'utilisation de l'estimateur du total d'HOROWITZ et THOMPSON sont estimées par simulation. Le biais auquel on peut s'attendre si on analyse un tel échantillon comme s'il avait été prélevé avec probabilités égales et sans remise, ou avec probabilités inégales et avec remise, est également étudié par simulation. On discute enfin l'intérêt de l'échantillonnage avec probabilités inégales et sans remise par rapport à des alternatives plus simples. [less ▲]

Detailed reference viewed: 16 (1 ULg)
See detailEchantillonnage et environnement.
Nicolas, Jacques ULg

Book published by Cebedoc (1997)

Cet ouvrage reprend le texte des contributions des différents intervenants au séminaire "Echantillonnage et Environnement" organisé par la Fondation Universitaire Luxembourgeoise en 1996. Les ... [more ▼]

Cet ouvrage reprend le texte des contributions des différents intervenants au séminaire "Echantillonnage et Environnement" organisé par la Fondation Universitaire Luxembourgeoise en 1996. Les contributions sont très variées : de la poubelle ménagère à l'écoute des oiseaux, en passant par les fumées, les odeurs et les plantes. L'ouvrage, comme le séminaire, se veut très pratique, l'objectif étant de confronter les expériences de terrain des praticiens, issus de quelques secteurs parmi les nombreux domaines de l'environnement, de mettre en évidence les questions précises que les utilisateurs se posent et également de voir si l'expérience de l'un n'est pas transposable à l'autre. Une table ronde et une série d'échanges avec les conférenciers ont également dégagé des enseignements utiles, qui sont résumés en conclusion de l'ouvrage. [less ▲]

Detailed reference viewed: 45 (9 ULg)