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See detailIsokinetic intervention in microtraumatic shoulder instability: an update
Gremeaux, V.; Croisier, Jean-Louis ULg; Forthomme, Bénédicte ULg

in Journal of Sports Medicine & Physical Fitness (2012), 52

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See detailIsokinetic measurement of forearm pronators-supinators and wrist flexors-extensors in normal subjects
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Heinzius, C. et al

in Isokinetics & Exercise Science (2000, March), 8

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See detailIsokinetic profile of javelin throwers and relationship to field tests
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Forthomme, L. et al

in Vlaams Tijdschrift voor Sport Geneeskunde & Sport Wetenschappen (2003), 95

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See detailIsokinetic strength and fatigability in patients with multiple sclerosis. The relationship between gait speed and isokinetic parameters
Maquet, Didier ULg; Dive, Dominique ULg; Entem, Arnaud et al

in Isokinetics & Exercise Science (2007), 15

Introduction Multiple sclerosis (MS) is a chronic disease characterized by inflammation and demyelisation of the central nervous system. Decline of muscular performances, fatigue, weakness and spasticity ... [more ▼]

Introduction Multiple sclerosis (MS) is a chronic disease characterized by inflammation and demyelisation of the central nervous system. Decline of muscular performances, fatigue, weakness and spasticity are the most common and disabling symptoms characterizing this neurological disease. Undoubtedly, objective assessments of muscle function would be relevant to deliver the most appropriate treatment and to appraise possible training effects resulting from rehabilitation. The purposes of this study were to assess muscle strength and fatigue of knee flexors and extensors in patients with multiple sclerosis by means of an isokinetic dynamometer. Relations between isokinetic results and gait speed were also investigated. Methods Eight patients (49 +/- 7 years old) suffering from multiple sclerosis (with unaided gait) were included in this study. Bilateral knee flexor and extensor performances were assessed using a Cybex Norm dynamometer. Maximal isokinetic strength was measured at 60°/s (3 repetitions) and 180°/s (5 repetitions). Thereafter, patients performed a fatigue protocol consisting in 30 successive maximal-intensity knee flexions and extensions at 180°/s angular velocity. Fatigue was analysed using the cumulative work parameter (corresponding to the sum of work developed through the 30 movements) and a fatigue index (ratio between work developed during 3 last contractions and 3 first contractions). Gait speeds corresponded to the time necessary to subject for walking at maximal speed on a 7.62 m and 100 m long walkway. Results Isokinetic parameters (strength and fatigue) appeared to be decreased in MS patients comparatively to normative data [1]. Knee flexors/extensors ratio was reduced for some patients, yet MS subjects displayed no significant bilateral asymmetry, suggesting a bilateral weakness process. Significant negative correlations (- 0.76 < r < - 0.95, p < 0.05) between gait speeds (measured through a 7.62 m and 100 m long walkway) and hamstring isokinetic parameters (peak torque and cumulative work) were observed. In contrast, we did not find any correlation between gait speed and quadriceps isokinetic performances, except for the correlation between gait speed on 100 m long walkway and fatigue index (0.78 < r < 0.89, p < 0.05). Discussion and conclusion Objective evaluation of muscle performance deficiencies in patients with MS appears essential for designing a successful rehabilitation program. However, no consensus has been established with regard to the most relevant isokinetic protocol modalities for assessing patients suffering form central nervous system lesions. Our preliminary results underlined that gait speed was negatively correlated to hamstring isokinetic parameters (strength and cumulative work). Interestingly, no patient included in our study reported increased symptoms such as spasticity during or after the test, indicating that MS patients are able to perform strength and fatigue isokinetic assessments. References [1] Maquet D, Croisier JL, Renard C, Crielaard JM. Muscle performance in patients with fibromyalgia, Joint Bone Spine 69 :293-9, 2002. [less ▲]

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See detailIsokinetic strength and fatigue of the elbow flexors and extensors in sedentary women
Maquet, Didier ULg; Forthomme, Bénédicte ULg; Demoulin, Christophe ULg et al

in Isokinetics & Exercise Science (2004), 12(3), 203-208

Objective. To establish the inter-session reproducibility of isokinetic concentric strength and fatigue profile of the elbow flexors and extensors in sedentary women. Methods. Forty healthy women who were ... [more ▼]

Objective. To establish the inter-session reproducibility of isokinetic concentric strength and fatigue profile of the elbow flexors and extensors in sedentary women. Methods. Forty healthy women who were physically inactive or engaged in recreational sports were included in the study. Strength was evaluated at 60 and 180 degrees/s. The fatigue protocol consisted of 30 maximal-intensity elbow flexion and extension at 180 degrees/s. Results. The extensors were stronger than flexors while no dominance effect was apparent. In addition the work output of the extensors during the fatigue protocol was larger than the flexors', the previous being more fatigue resistant. A dominance effect was observed for the extensors in the fatiguing protocol. Reproducibility expressed by the coefficient of variation was less or equal to 11%. Conclusions. This study highlights satisfactory reproducibility of isokinetic strength and fatigue parameters. The values derived may be useful for interpretation of clinical tests or characterization of pathological states in women with similar characteristics. [less ▲]

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See detailIsokinetic testing of knee musculature in patient with unilateral gonarthrosis
Henrotin, Yves ULg; Croisier, Jean-Louis ULg; Dumont, R. et al

in Revue du Rhumatisme (English ed.) (1997, November), 11

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See detailIsolated Atherosclerotic Aneurysms of the Iliac Arteries
Desiron, Quentin ULg; Detry, Olivier ULg; Sakalihasan, Natzi ULg et al

in Annals of Vascular Surgery (1995), 9(Suppl), 62-6

Atherosclerotic aneurysms limited to the iliac arteries are rare and entail a high risk of rupture. To evaluate the efficacy of prophylactic surgery, we retrospectively studied 15 patients (13 men and two ... [more ▼]

Atherosclerotic aneurysms limited to the iliac arteries are rare and entail a high risk of rupture. To evaluate the efficacy of prophylactic surgery, we retrospectively studied 15 patients (13 men and two women; mean age 69 years) treated for isolated iliac aneurysms in the Department of Cardiovascular Surgery at the University Hospital of Liege over a period of 18 years. They had a total of 25 aneurysms (20 common iliac and five internal iliac). Six patients were treated electively and nine on an emergency basis for rupture. Five of the emergency patients (33%) died in the early postoperative period (< 30 days); in each case the aneurysm had ruptured and an emergency operation was performed (55.5% mortality in the ruptured iliac aneurysm group). On the other hand, all patients treated electively survived. Our study is comparable to other recent series in the literature, which also reported a high incidence of rupture and death in emergency operations. Prophylactic elective surgery is recommended for iliac aneurysms. [less ▲]

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See detailIsolated chlamydia trachomatis infection and cervical intraepithelial neoplasia in adolescence
To, Hong ULg

in The 2012 Conference of Asia Oceania Research Organisation on Genital Infection and Neoplasia, Hongkong 13-15 July 2012 (2012, July 15)

Many authors suggest an association between CT infection and dysplasia or neoplastic cervical atypia, but evidence of an isolated Chlamydia trachomatis (CT) infection increasing the risk of developing ... [more ▼]

Many authors suggest an association between CT infection and dysplasia or neoplastic cervical atypia, but evidence of an isolated Chlamydia trachomatis (CT) infection increasing the risk of developing cervical intraepithelial neoplasia (CIN) remains unproven. We present a case of isolated CT infection in an adolescent 17 year old girl who was referred to our hospital with high grade cervical squamous intraepithelial lesion (HSIL) on her Pap smear. CT was detected in both the rapid test of the endocervix specimen and PCR testing of urine, but human papilloma virus (HPV) infection (Qualitative HPV PCR test) was not present. CIN3 was confirmed on biopsy of the thick acetowhite and mosaic zone at colposcopy. Isolated CT infection is a potential factor in the development of CIN in adolescence. [less ▲]

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See detailIsolated systolic and diastolic dippers, an intermediate subgroup between dippers and non-dippers
Moonen, martial; Saint-Remy, Annie ULg; Krzesinski, Jean-Marie ULg et al

Conference (1997, October 04)

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See detailIsolated transient UV auroral structures at Jupiter: possible signatures of magnetospheric injections 
Dumont, Maïté ULg; Grodent, Denis ULg; Radioti, Aikaterini ULg et al

Conference (2013, July 11)

We investigate transient ultraviolet auroral features located equatorward of the main emission (130 features) based on Hubble Space Telescope (HST) observations of the northern and southern Jovian ... [more ▼]

We investigate transient ultraviolet auroral features located equatorward of the main emission (130 features) based on Hubble Space Telescope (HST) observations of the northern and southern Jovian hemispheres (2000-2007). Several properties of the auroral emissions are analyzed, such as their position in auroral region, power and brightness. Additionally, we magnetically map the auroral structures to the equatorial plane using VIPAL model and we compare their observed properties with those of magnetospheric injections observed by Galileo. We suggest that these transient auroral structures could be related to magnetospheric injections. The mapped radial position and system III longitude of the observed auroral features are in good agreement with those of the injections observed in the equatorial plane by Galileo. Based on power and brightness of the auroral features, we discuss the mechanisms involved in the ionosphere-magnetosphere coupling injections. This comparative study demonstrates that the structures under study are related to magnetospheric injections and sheds light to the mechanism involved in the magnetosphere-ionosphere dynamics. [less ▲]

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See detailIsolating auroral FUV emission lines using compact, broadband instrumentation
Molyneux, P.M.; Bannister, N.P.; Bunce, E.J. et al

in Planetary and Space Science (in press)

Images of auroral emissions at far ultraviolet (FUV, 122–200 nm) wavelengths are useful tools with which to study magnetospheric-ionospheric coupling, as the scattered sunlight background in this region ... [more ▼]

Images of auroral emissions at far ultraviolet (FUV, 122–200 nm) wavelengths are useful tools with which to study magnetospheric-ionospheric coupling, as the scattered sunlight background in this region is low, allowing both dayside and nightside auroras to be imaged simultaneously. The ratio of intensities between certain FUV emission lines or regions can be used to characterise the precipitating particles responsible for auroral emissions, and hence is a useful diagnostic of magnetospheric dynamics. Here, we describe how the addition of simple transmission filters to a compact broadband imager design allows far ultraviolet emission ratios to be deduced while also providing large-scale instantaneous images of the aurora. The low mass and volume of such an instrument would make it well-suited for both small satellite Earth-orbiting missions and larger outer planet missions from which it could be used to characterise the tenuous atmospheres observed at several moons, as well as studying the auroral emissions of the gas giants. We present a study to investigate the accuracy of a technique to allow emission line ratio retrieval, as applied to the OI 130.4 nm and 135.6 nm emissions at Ganymede. The ratio of these emissions provides information about the atmospheric composition, specifically the relative abundances of O and O2. Using modelled FUV spectra representative of Ganymede's atmosphere, based on observations by the Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS), we find that the accuracy of the retrieved ratios is a function of the magnitude of the ratio, with the best measurements corresponding to a ratio of ∼1.3 . [less ▲]

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See detailIsolating the 130.4 nm and 135.6 nm emissions in Ganymede’s aurora using broadband optics
Molyneux, Philippa M; Grodent, Denis ULg; Bunce, Emma J et al

Conference (2012, September 27)

We discuss a technique for isolating the two main Far Ultraviolet emission lines in Ganymede’s aurora by adding flight proven transmission filters to a broad- band, wide-field imager design. We find that ... [more ▼]

We discuss a technique for isolating the two main Far Ultraviolet emission lines in Ganymede’s aurora by adding flight proven transmission filters to a broad- band, wide-field imager design. We find that the ra- tio of OI emissions at 135.6 nm and 130.4 nm can be recovered if the transmission of the filters and other optical elements are well known. This ratio allows constraints to be placed on the relative abundances of O atoms and O2 molecules within Ganymede’s at- mosphere, leading to more accurate models of atmo- spheric composition. [less ▲]

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See detailIsolation ad Characterization of osteocalcin in horses
Carstanjen, B; Wattiez, R; Amory, Hélène ULg et al

in Proceedings of the ECVS meeting 2002 (Resident Forum) (2002)

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See detailIsolation and analysis of a putative FLC orthologue in Sinapis alba L.
D'Aloia, Maria ULg; Melzer, Siegbert; Périlleux, Claire ULg

in Acta Physiologiae Plantarum (2004), 26(3), 23-24

In many plant species, flowering is promoted by a long exposure to low temperature, a process known as vernalization. Some plants even have an absolute requirement for winter cold before being able to ... [more ▼]

In many plant species, flowering is promoted by a long exposure to low temperature, a process known as vernalization. Some plants even have an absolute requirement for winter cold before being able to flower the next summer, hence behave as biennials or winter crops. A recent breakthrough in the understanding of the molecular bases of vernalization has been the cloning of the FLOWERING LOCUS C (FLC) gene in Arabidopsis thaliana (Michaels S.D. & Amasino R.M., 1999). FLC encodes a repressor of flowering and is downregulated by vernalization. So vernalization relieves the inhibitory role that FLC plays on downstream genes involved in the floral transition of the shoot apical meristem (SAM). Although vernalization has been shown, by physiological studies, to be sensed by the SAM, molecular evidences are missing. Such analyses are impaired in Arabidopsis by the small size of the plant and the rosette growth habit. We therefore cloned a FLC homologue in a caulescent relative Brassicaceae: mustard (Sinapis alba L.). We identified two clones by screening a cDNA library made from leaf mRNA. One of them, SaFLC1, was used for in situ hybridizations on SAM sections. Preliminary results are shown. Because of its agronomical importance, we have also tried to manipulate the vernalization process in crops. By using a transgenic approach, we have attempted to bypass the strict vernalization requirement of winter colza (Brassica napus L.). We have over-expressed SaMADS A, a gene which is repressed by FLC in wild type, and observed that the transgenics did not require vernalization any more. [less ▲]

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See detailIsolation and biomass production of a Saccharomyces cerevisiae strain binding copper and zinc ions
Stroobants, Aurore ULg; Delroisse, Jean-Marc; Delvigne, Frank ULg et al

in Applied Biochemistry and Biotechnology (2009), 157(1),

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See detailIsolation and Characterisation of a Ruminant Alphaherpesvirus Closely Related to Bovine Herpesvirus 1 in a Free-Ranging Red Deer
Thiry, Julien ULg; Widen, F.; Grégoire, Fabien ULg et al

in BMC Veterinary Research (2007), 3

BACKGROUND: The genus Varicellovirus of the Herpesviridae subfamily Alphaherpesvirinae includes a cluster of viruses antigenically and genetically related to bovine herpesvirus 1 (BoHV-1): namely bovine ... [more ▼]

BACKGROUND: The genus Varicellovirus of the Herpesviridae subfamily Alphaherpesvirinae includes a cluster of viruses antigenically and genetically related to bovine herpesvirus 1 (BoHV-1): namely bovine herpesvirus 5 (BoHV-5), bubaline herpesvirus 1 (BuHV-1), caprine herpesvirus 1 (CpHV-1), cervid herpesviruses 1 (CvHV-1) and 2 (CvHV-2) and elk herpesvirus 1 (ElkHV-1). Considering the serological relationship between these ruminant alphaherpesviruses, several surveys have studied the occurrence of BoHV-1 related virus infection in wild and domestic ruminant species. In this way, a recent investigation has indicated, in Belgium, a high increase in the serological prevalence of BoHV-1 related virus infection in free-ranging red deer population. In this context, it has been decided to investigate the presence of an alphaherpesvirus spreading in the Belgian free-ranging red deer population. RESULTS: The current study reports the first isolation in a free-ranging red deer of a BoHV-1 closely related virus. The isolate was antigenically, genomically and genetically characterised by comparison with several ruminant alphaherpesvirus. Immunofluorescence assays revealed the isolate was antigenically distinct from bovine and caprine alphaherpesviruses. Similarly, BamHI and BstEII restriction analyses demonstrated the genomic difference between the isolate and the other ruminant alphaherpesviruses. Next, the sequencing of selected parts of UL27 and US8 genes showed a high degree of homologies between each BoHV-1 related ruminant alphaherpesvirus and the isolate. Besides the close relationship between all ruminant alphaherpesviruses, the phylogenetic analysis revealed that the isolate clustered with CvHV-1. CONCLUSION: The first isolation of a virus closely related to BoHV-1 in a free-ranging red deer is reported. Data demonstrate that a CvHV-1 strain, named Anlier, circulates in wild red deer in continental Europe. Anlier strain show consistent differences with the virus isolated from Scottish farmed red deer. All together, these results improve our understanding of ruminant alphaherpesviruses. [less ▲]

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See detailIsolation and characterisation of new alien monosomic addition lines of Gossypium australe F. Muell. on G. hirsutum L.
Mergeai, Guy ULg; Sarr, D.; Ahoton, L. et al

in Proceedings of the 2004 International cotton initiative workshop (2004)

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See detailIsolation and characterisation of new spore-forming lactic acid bacteria with prospects of use in food fermentations and probiotic preparations
Bayane, Ali; Diawara, B.; Dubois Dauphin, Robin ULg et al

in African Journal of Microbiology Research [=AJMR] (2010), 4(11), 1016-1025

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See detailIsolation and characterisation of seven alien monosomic addition lines of Gossypium australe F. Muell. on G. hirsutum L.
Ahoton, L.; Lacape, J. M.; D'Hont, A. et al

in World Cotton Research Conference - 3. Cotton production for the new Millenium (2004)

Detailed reference viewed: 39 (7 ULg)