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
Peer Reviewed
See detailIsokinetic evaluation of hip strength muscle groups in unilateral lower limb amputees
Croisier, Jean-Louis ULiege; Maertens De Noordhout, Benoît ULiege; Maquet, Didier ULiege et al

in Isokinetics & Exercise Science (2001), 9(4), 163-169

The objectives of the study were to measure the isokinetic strength of the hip flexor-extensor and adductor-abductor muscle groups in unilateral lower limb amputees and to evaluate abnormalities in order ... [more ▼]

The objectives of the study were to measure the isokinetic strength of the hip flexor-extensor and adductor-abductor muscle groups in unilateral lower limb amputees and to evaluate abnormalities in order to improve the usual rehabilitation programs. Thirty-three patients with unilateral lower limb amputation were included in this study; they served as their own controls, the amputated side being compared to the intact side. Using an isokinetic device, the relative peak torques (N.m by body weight), bilateral asymmetries and agonist/antagonist torque ratios were calculated for the hip flexor, extensor, adductor and abductor muscle groups. A significant reduction of mean concentric relative peak torque measured on the amputated limbs was generally observed when compared to the intact contralateral limb (p < 0.05). The mean percentage of relative peak torque decrease was greater for the extensors than for the flexors (33 +/- 20% and 22 +/- 23%, respectively, at 30degrees/s angular velocity), and for the abductors than for the adductors (23 +/- 22% and 11 +/- 19%, respectively, at 30degrees/s angular velocity). Furthermore, the flexor/extensor torque ratio was significantly increased for the amputated limb (for instance, 1.25 +/- 0.33 versus 1.09 +/- 0.25 for the intact limb at 30degrees/s). The reduction of the abductor/adductor ratio of the operated limb reached the level of statistical significance at 60degrees/s only (1.25 +/- 0.46 versus 1.07 +/- 0.36 for the intact limb). In conclusion, isokinetic testing revealed a significant reduction of the hip stabilizing muscle strength as a consequence of lower limb amputation. The more marked decrease of the strength of the abductor and extensor muscle groups, resulting in imbalances of the agonist/antagonist strength ratios should be taken into account to adapt the conventional rehabilitation programs. [less ▲]

Detailed reference viewed: 283 (12 ULiège)
Peer Reviewed
See detailIsokinetic evaluation of hip strength muscle groups in unilateral lower limb amputees
Croisier, Jean-Louis ULiege; Maertens De Noordhout, Benoît; Camus, Gérard et al

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

Detailed reference viewed: 42 (1 ULiège)
Peer Reviewed
See detailIsokinetic evaluation of knee extensors and flexors in patients with unilateral symptomatic gonarthrosis
Henrotin, Yves ULiege; Croisier, Jean-Louis ULiege; Dumont, R et al

in Osteoarthritis and Cartilage (1999), 7(SA), 94

Detailed reference viewed: 12 (1 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic evaluation of knee extensors and flexors in patients with unilateral symptomatic gonarthrosis
Henrotin, Yves ULiege; Croisier, Jean-Louis ULiege; Dumont, R et al

in Annals of the Rheumatic Diseases (2000), 59(S1), 275

Detailed reference viewed: 11 (2 ULiège)
Peer Reviewed
See detailIsokinetic evaluation of knee extensors and flexors in patients with unilateral symptomatic gonarthrosis
Henrotin, Yves ULiege; Croisier, Jean-Louis ULiege; Dumont, R. et al

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

Detailed reference viewed: 25 (4 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic evaluation of knee extensors and flexors in patients with unilateral symptomatic gonarthrotis
Henrotin, Yves ULiege; Croisier, Jean-Louis ULiege; Dubuc, JE et al

in Clinical Rheumatology (2001), 20

Detailed reference viewed: 16 (1 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic evaluation of muscular function in patients with chronic pain and fatigability
Maquet, Didier ULiege; Croisier, Jean-Louis ULiege; Moutschen, Michel ULiege et al

in Isokinetics & Exercise Science (2003, March), 11(1), 73-74

Detailed reference viewed: 30 (6 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic fatigue protocol: Assessment of shoulder rotator muscles
Forthomme; Maquet, Didier ULiege; Lehance, Cédric ULiege et al

in Abstract book of 13th Annual Congress of the European College of Sport Science (2008)

Detailed reference viewed: 79 (10 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic intervention in microtraumatic shoulder instability: an update
Gremeaux, V.; Croisier, Jean-Louis ULiege; Forthomme, Bénédicte ULiege

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

Detailed reference viewed: 61 (2 ULiège)
Peer Reviewed
See detailIsokinetic measurement of forearm pronators-supinators and wrist flexors-extensors in normal subjects
Forthomme, Bénédicte ULiege; Croisier, Jean-Louis ULiege; Heinzius, C. et al

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

Detailed reference viewed: 52 (0 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic profil of subjects with proximal patellar tendinopathy
Croisier, Jean-Louis ULiege; Roberjot, Mathieu; DELVAUX, François ULiege et al

in The Future of Football Medicine (2017, May)

Introduction: Proximal patellar tendinopathy is relatively common among sportsmen, even among football players who do repetitive shooting sessions. However, the strength profile of subjects with proximal ... [more ▼]

Introduction: Proximal patellar tendinopathy is relatively common among sportsmen, even among football players who do repetitive shooting sessions. However, the strength profile of subjects with proximal patellar tendinopathies is rarely described and the isokinetic profile remains unknown. Purpose: We aimed to determine the strength profile of subjects suffering from this frequently recurrent pathology. Methods: Forty-three players (29,1±8.5 y.o.; 78.1±11.9kg; 179.3±7.2cm) with chronic proximal patellar tendinopathy confirmed by ultrasounds were recruited. Quadriceps and hamstrings muscular performances of the healthy and pathological side were measured using an isokinetic dynamometer (Cybex Norm) at the concentric speed of 60°/s (C60) and 240°/s (C240) and at the eccentric speed of 30°/s (E30 - only for hamstrings). A visual analogic scale of pain (VAS) has also been used after each isokinetic test in order to associate the level of complaints and the intensity of contractions. Results: The results (Table 1) for the isokinetic tests comparing the healthy (HS) to the pathological side (PS) are significant for the different conditions of contraction and test speeds, as for the results of the VAS associated to those tests (p<0.01). Indeed, pathological limbs had a maximum peak torque for the quadriceps at C60 and at C240 lower than healthy limbs (2.17 ± 0.68 N.m/kg vs 2.47 ± 0.55 N.m/kg, p = 0.0003 and 1.46 ± 0.42 N.m/kg vs. 1.56 ± 0.31 N.m/kg, p = 0.02, respectively); this represents a bilateral difference of 14% for C60 and 7% in C240. In E30, pathological limbs were also weaker than the healthy limbs (2.46 ± 0.91 N.m/kg vs 2.79 ± 0.96 N.m/kg, p = 0.0008) which represents a difference of 13% between healthy and pathological limbs. For the hamstrings of the pathological limbs, we observed a maximum peak torque at C60 and C240 lower than for the hamstrings of the healthy limbs (1.26 ± 0.37 N.m/kg vs. 1.37 ± 0.36 N.m/kg, p = 0.006 and 0.80 ± 0.23 N.m/kg vs 0.85 ± 0.20 N.m/kg, p = 0.04). The bilateral differences of hamstring strength were 8.7% in C60 and 6% in C240. The PS were more painful than the HS (VAS C60: 3.47 ± 2.65 vs 0.20 ± 1.05; p>0.01; VAS C240: 2.83 ± 2.47 vs. 0.68 ± 0.10; p>0.01; VAS E30: 5,26 ± 2.78 vs 0.58 ± 1.93; p>0.01). The difference of pain can be seen especially in eccentric mode. This observation suggest that isokinetic tests, beyond the measure of strength, could represent a pain provocation test, even with a possible pronostic value for the efficacy of treatment. Conclusions: In our study, the isokinetic results of patients with proximal patellar tendinopathy showed a significant difference in strength profile between the HS and the PS as well as VAS associated with each tests. However, the diversity of outcomes recorded in our population suggests that an individualized rehabilitation treatment is probably more relevant than a common protocol for the healing of this tendon pathology. Isokinetic tests can also represent a tool for assessment of treatment planning. Finally, it would seem that isokinetic tests in the eccentric mode on the quadriceps can be a pain assessment tool for the pathological tendon. [less ▲]

Detailed reference viewed: 72 (1 ULiège)
Full Text
See detailIsokinetic profile of javelin throwers and relationship to field tests
Forthomme, Bénédicte ULiege; Croisier, Jean-Louis ULiege; Forthomme, L. et al

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

Detailed reference viewed: 51 (5 ULiège)
Full Text
Peer Reviewed
See detailisokinetic profile of subjects with proximal patellar tendinopathy
Croisier, Jean-Louis ULiege; Libertiaux, Vincent ULiege; Kaux, Jean-François ULiege

in European Journal of Sports Medicine (2017, September), 5(Supplement 1), 65-66

Detailed reference viewed: 9 (0 ULiège)
Peer Reviewed
See detailIsokinetic strength and fatigability in patients with multiple sclerosis. The relationship between gait speed and isokinetic parameters
Maquet, Didier ULiege; Dive, Dominique ULiege; 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 ▲]

Detailed reference viewed: 188 (17 ULiège)
Full Text
Peer Reviewed
See detailIsokinetic strength and fatigue of the elbow flexors and extensors in sedentary women
Maquet, Didier ULiege; Forthomme, Bénédicte ULiege; Demoulin, Christophe ULiege 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 ▲]

Detailed reference viewed: 83 (10 ULiège)
Peer Reviewed
See detailIsokinetic testing of knee musculature in patient with unilateral gonarthrosis
Henrotin, Yves ULiege; Croisier, Jean-Louis ULiege; Dumont, R. et al

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

Detailed reference viewed: 26 (3 ULiège)
Full Text
Peer Reviewed
See detailIsolated Atherosclerotic Aneurysms of the Iliac Arteries
Desiron, Quentin ULiege; Detry, Olivier ULiege; Sakalihasan, Natzi ULiege 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 ▲]

Detailed reference viewed: 26 (7 ULiège)
Full Text
Peer Reviewed
See detailIsolated chlamydia trachomatis infection and cervical intraepithelial neoplasia in adolescence
To, Hong ULiege

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 ▲]

Detailed reference viewed: 22 (0 ULiège)
Full Text
Peer Reviewed
See detailIsolated response curves in a base-excited, two-degree-of-freedom, nonlinear system
Noël, Jean-Philippe ULiege; Detroux, Thibaut ULiege; Masset, Luc ULiege et al

in Proceedings of the ASME 2015 International Design Engineering Technical Conferences (2015, August)

In the present paper, isolated response curves in a nonlinear system consisting of two masses sliding on a horizontal guide are examined. Transverse springs are attached to one mass to provide the ... [more ▼]

In the present paper, isolated response curves in a nonlinear system consisting of two masses sliding on a horizontal guide are examined. Transverse springs are attached to one mass to provide the nonlinear restoring force, and a harmonic motion of the complete system is imposed by prescribing the displacement of their supports. Numerical simulations are carried out to study the conditions of existence of isolated solutions, their bifurcations, their merging with the main response branch and their basins of attraction. This is achieved using tools including nonlinear normal modes, energy balance, harmonic balance-based continuation and bifurcation tracking, and global analysis. [less ▲]

Detailed reference viewed: 75 (13 ULiège)
Full Text
See detailIsolated systolic and diastolic dippers, an intermediate subgroup between dippers and non-dippers
Moonen, martial; Saint-Remy, Annie ULiege; Krzesinski, Jean-Marie ULiege et al

Conference (1997, October 04)

Detailed reference viewed: 16 (1 ULiège)