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See detailMuscular and functional tridimensional analysis after hamstring strain
Paulus, Julien ULg; DELVAUX, François ULg; Schwartz, Cédric ULg et al

in European Journal of Physical and Rehabilitation Medicine (2016, April), 52(2), 263

Introduction The muscle injury, and more especially the hamstring strain, account for a large proportion of explosive top athletes injuries [1-3]. The subsequent down-time period has some sports and ... [more ▼]

Introduction The muscle injury, and more especially the hamstring strain, account for a large proportion of explosive top athletes injuries [1-3]. The subsequent down-time period has some sports and financial negatives consequences for the athlete, his team and/or his club [4, 5]. Despite the rehabilitation before return to play and prevention program, hamstring reinjury rates are still high (26% of all injuries) [6] and it's commonly accepted that a second injury is more severe than a first episode [2]. A more functional test could help the clinician in the return to play process decision to reduce the muscle injuries hamstring relapse. Purpose The aim of our methodology is to analyze, after medical clearance to resume sports activities, for athletes who suffered from grade II/III hamstring muscle strain, the biomechanics of the lower limbs during an explosive jump task. Method After (7,3±0,7 weeks) a grade II or III hamstring muscle tear, eight men (25±5,9 years), without past lower limb major injury, performed: - an isokinetic test (knee maximal flexion-extension in concentric at 60°.s-1 and 240°.s-1 and knee maximal flexion in eccentric at 30°.s-1); - a tridimensional biomechanics analysis of (bipodal and unipodal) squat jump and counter movement jump with Codamotion® system and Kistler® multicomponent force plates. Results A muscular lateral strength imbalance (±10% with p-value < 0,02) has been identified on the hamstring in concentric and eccentric by means of isokinetic testing, with the healthy side stronger than the pathologic. The main statistical significant outcome in the biomechanics analysis is the lower knee angle (±12% with p-value < 0,02) at the low point before the concentric pushing phase of the unipodal CMJ for the healthy leg than to the other one whereas there's no difference between both legs in an equivalent healthy population. Discussion & conclusion The tridimensional analysis appears to be complementary, not redundant, with the isokinetic strength testing due to the different nature of their informations obtained. It could be integrated in the return to play process decision expected the potentially interesting information about the player's biomechanics that it provides. References 1. Ekstrand, J., M. Hagglund, and M. Walden, Epidemiology of muscle injuries in professional football (soccer). Am J Sports Med, 2011. 39(6): p. 1226-32. 2. Ekstrand, J., M. Hagglund, and M. Walden, Injury incidence and injury patterns in professional football: the UEFA injury study. Br J Sports Med, 2011. 45(7): p. 553-8. 3. Lopez, V., Jr., et al., Profile of an American amateur rugby union sevens series. Am J Sports Med, 2012. 40(1): p. 179-84. 4. Price, R.J., et al., The Football Association medical research programme: an audit of injuries in academy youth football. Br J Sports Med, 2004. 38(4): p. 466-71. 5. Verrall, G.M., et al., Assessment of player performance following return to sport after hamstring muscle strain injury. J Sci Med Sport, 2006. 9(1-2): p. 87-90. 6. Brooks, J.H., et al., Incidence, risk, and prevention of hamstring muscle injuries in professional rugby union. Am J Sports Med, 2006. 34(8): p. 1297-306. [less ▲]

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See detailMuscular and physical features correlated with ball velocity during the volleyball spike
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Ciccarone, Guido et al

in Computer Methods in Biomechanics & Biomedical Engineering (2005, September), 8(Supp 1), 105-106

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See detailMuscular forces affecting the outcome of CCL surgery
Ramirez, J.; Böhme, Béatrice ULg; Vroomen, Carl ULg et al

in Proceedings of the 20th ECVS Congress (2011)

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See detailMuscular forces affecting the outcome of CCL surgery.
Ramirez, L.; Böhme, Béatrice ULg; Vroomen, Carl ULg et al

in Proceedings of the 20th ECVS Congress (2011)

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See detailMuscular imbalance and acute lower extremity muscle injuries in sport
Croisier, Jean-Louis ULg

in International SportMed Journal (2004), 5(3), 169-176

Investigating factors associated with muscle strains highlight the multifactorial origin of the injury and the difficulty of identifying isolated or combined factors that caused the injury. Among the ... [more ▼]

Investigating factors associated with muscle strains highlight the multifactorial origin of the injury and the difficulty of identifying isolated or combined factors that caused the injury. Among the numerous causes reported in the literature, only a few have been scientifically associated with injury occurrence, while others have been empirically suggested. Contradictions in articles dealing with muscle strength and imbalance are frequent, and are probably the result of differences in methodology and criteria for patient inclusion. Imbalance in muscle strength commonly refers to abnormal bilateral asymmetry (between homologous groups) and a disruption of the agonist-antagonist ratio. Some authors who focus on a history of hamstring or adductor strains have demonstrated the frequent abnormality of muscle strength and balance by means of isokinetic assessment. Mixed ratios, combining the eccentric performance of “decelerating” muscles (such as the hamstrings) and the concentric performance of “mobiliser” muscles (such as the quadriceps) are suggested and seem relevant. An increased emphasis on eccentric strengthening exercises, particularly for the hamstrings, and ratio correction on the basis of statistically selected cut-offs, significantly reduces the recurrence rate of the injury and lingering complaints upon return-to-sport. Similarly, isokinetic interventions, as a preseason screening tool in sports where there is a high rate of muscle strain injuries, could detect imbalances early and thus promote a preventive strategy. [less ▲]

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See detailMuscular imbalances determined by isokinetic and functional tests in professional basketball players
Schiltz, Marc; Lehance, Cédric ULg; Maquet, Didier ULg et al

in Abstract book de la 6ème Journée Belge d’Isocinétisme du GIBL (2008, March)

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See detailMuscular Performance Assessment of Trunk Extensors: A Critical Appraisal of the Literature
Demoulin, Christophe ULg; GROSDENT, Stéphanie ULg; Smeets, Rob et al

in Asghar Norasteh, Ali (Ed.) Low Back Pain (2012)

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See detailMuscular strength and functional performances in elite and junior elite soccer players: what does preseason testing really teach us?
Lehance, Cédric ULg; Binet, Johnny; Bury, Thierry ULg et al

in Journal of Sports Science & Medicine (2007), 6(suppl 10), 68-69

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See detailMuscular strength, functional performances and injury risk in professional and junior elite soccer players.
Lehance, Cédric ULg; Binet, J.; Bury, Thierry ULg et al

in Scandinavian Journal of Medicine & Science in Sports (2009), 19(2), 243-51

Muscle strength and anaerobic power of the lower extremities are neuromuscular variables that influence performance in many sports activities, including soccer. Despite frequent contradictions in the ... [more ▼]

Muscle strength and anaerobic power of the lower extremities are neuromuscular variables that influence performance in many sports activities, including soccer. Despite frequent contradictions in the literature, it may be assumed that muscle strength and balance play a key role in targeted acute muscle injuries. The purpose of the present study was to provide and compare pre-season muscular strength and power profiles in professional and junior elite soccer players throughout the developmental years of 15-21. One original aspect of our study was that isokinetic data were considered alongside the past history of injury in these players. Fifty-seven elite and junior elite male soccer players were assigned to three groups: PRO, n=19; U-21, n=20 and U-17, n=18. Players benefited from knee flexor and extensor isokinetic testing consisting of concentric and eccentric exercises. A context of lingering muscle disorder was defined using statistically selected cut-offs. Functional performance was evaluated throughout a squat jump and 10 m sprint. The PRO group ran faster and jumped higher than the U-17 group (P<0.05). No significant difference in isokinetic muscle strength performance was observed between the three groups when considering normalized body mass parameters. Individual isokinetic profiles enabled the identification of 32/57 (56%) subjects presenting lower limb muscular imbalance. Thirty-six out of 57 players were identified as having sustained a previous major lower limb injury. Of these 36 players, 23 still showed significant muscular imbalance (64%). New trends in rational training could focus more on the risk of imbalance and implement antagonist strengthening aimed at injury prevention. Such an intervention would benefit not only athletes recovering from injury, but also uninjured players. An interdisciplinary approach involving trainers, a physical coach, and medical staff would be of interest to consider in implementing a prevention programme. [less ▲]

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See detailMusculation fonctionnelle : les mouvements de projection
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Crielaard, Jean-Michel ULg

in Actes du Colloque sur l’intervention dans les APS : rétro/perspectives (2002, September)

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See detailMusculation ou renforcement musculaire
Croisier, Jean-Louis ULg

in Xhardez, Yves (Ed.) Vade-mecum de Kinésithérapie et de rééducation fonctionnelle (2002)

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See detailMusculocontractural Ehlers-Danlos syndrome (Former EDS Type VIB) and Adducted Thumb Clubfoot Syndrome (ATCS) represent a single clinical entity caused by mutations in the Dermatan-4-Sulfotransferase 1 encoding CHST14 gene
Malfait, Fransiska; Syx, Delfien; Vlummens, Philip et al

in Human Mutation (2010), 31(11), 1233-1239

We present clinical and molecular findings with three patients with an EDS VIB phenotype from two consanguineous families. The clinical finding of EDS kyphoscoliotic (EDS type VIA and B) comprise ... [more ▼]

We present clinical and molecular findings with three patients with an EDS VIB phenotype from two consanguineous families. The clinical finding of EDS kyphoscoliotic (EDS type VIA and B) comprise kyphoscoliosis, muscular hypotonia, hyperextensible, thin and bruisable skin, atrophic scarring, joint hypermobility, and variable ocular involvement. Distinct craniofacial abnormalities, joint contractures, winkled palms, and normal urinary pyridinoline ratios distinguish EDS VIB from EDS VIA. A genome-wide SNP scan and sequence analyses identified a homozygous frameshift mutation (NM_130468.2:c.145delG, NP_569735.1:p.val49*) in CHST14, encoding dermatan-4- sulfotransferase 1 (D4ST-1), in two Turkish siblings. Subsequent sequences analysis of CHST14 identified a homozygous 20-bp duplication (NM_130468.2:c.981_1000dup, NP_569735.1p.Glu334-Glyfs*107) in an Indian patient. Loss-of-function mutations in CHTS14 were recently reported in adducted thumb clubfoot syndrome (ATCS). Patients with ATCS present similar craniofacial and muscoloskeletal features as the EDS VIB patients reported here, but lack the severe skin manifestations. By identifying the identical mutation in patients with EDS VIB and ATCS, we show that both conditions form a phenotypic continuum. Our findings confirm that the EDS-variant associated with the CHTS14 mutations forms a clinical spectrum, which we propose to coin as "musculocontractural EDS" and which results from a defect in dermatan sulfate biosynthesis, perturbing collagen synthesis. [less ▲]

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See detailMusculoskeletal disorders in a time demographic changes: a real challenge for the future in Europe and Northern America
Ethgen, Olivier ULg; Richy, Florent; De Ceulaer, F. et al

in Osteoporosis International (2002, November), 13(Suppl.3), 48-49

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See detailThe Muse's Progress: 'Infinite Rehearsal' in J. M. Coetzee's Foe
Maes-Jelinek, Hena ULg

in Maes-Jelinek, Hena; Petersen, Kirsten Holst; Rutherford, Anna (Eds.) A Shaping of connections : Commonwealth literature studies, then and now : Essays in honour of A.N. Jeffares (1989)

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See detailLa muséalisation de l'espace urbain : Quand le musée de ville se met en scène dans les rues
Postula, Jean-Louis ULg

in Bergeron, Yves; Arsenault, Daniel; Provencher St-Pierre, Laurence (Eds.) Musées et muséologies : au délà des frontières : Les muséologies nouvelles en question (2015)

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See detailMuséaliser l'art conceptuel: De Seth Siegelaub à Lawrence Weiner
Eloy, Céline ULg

in Culture et Musées (2011), 16

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See detailLe musée d'architecture de l'ancien Pays de Liège
Charlier, Sébastien ULg

in Bulletin de l'Institut Archéologique Liégeois (2015), CXIX

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See detailLe Musée de la Famenne
Van Ruymbeke, Muriel ULg

in Actes du LI e congrès de la Fédération des cercles d'archéologie et d'histoire de Belgique (1992)

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See detailLe Musée de la Famenne: un défi, une réussite
Van Ruymbeke, Muriel ULg

in La Vie wallonne (1991), (414-415), 157-160

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See detailLe musée de la photographie et sa pertinence sémiotique
Dondero, Maria Giulia ULg

in Nouveaux Actes Sémiotiques (2005), 98-100

Cet article analyse un certain nombre d’archives photographiques des collections privées et publiques exposées au Musée de la Photographie Contemporaine de Milan. Il prend en considération les différents ... [more ▼]

Cet article analyse un certain nombre d’archives photographiques des collections privées et publiques exposées au Musée de la Photographie Contemporaine de Milan. Il prend en considération les différents paramètres de catalogage (historique, par thème, par genre, par statut, par technique) en les mettant en relation avec l’organisation des espaces d’exposition. Cette recherche vise à montrer les paramètres hybrides du catalogage et à démontrer que le catalogage et les choix d’exposition produisent de véritables théories implicites du medium photographique. [less ▲]

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