References of "Croisier, Jean-Louis"
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See detailEntraînement concentrique ou excentrique : transfert des gains
Maquet, Didier ULiege; Delvaux, François; Croisier, Jean-Louis ULiege

in Croisier, Jean-Louis; Codine, Philippe (Eds.) Exercice musculaire excentrique (2009)

The purpose of this study was to compare pure concentric and eccentric isokinetic training with respect to their possible specificity in the progression of strength of the knee flexor and extensor muscles ... [more ▼]

The purpose of this study was to compare pure concentric and eccentric isokinetic training with respect to their possible specificity in the progression of strength of the knee flexor and extensor muscles. Subjects were divided into 2 groups (eccentric or concentric training) and performed a specific training of dominant leg. Before and after the training session, isokinetic performances of trained leg and non-trained leg (cross-education) were evaluated. We observed a greater increase of muscle performances after eccentric training. A cross-education effect was measured exclusively after eccentric training session. We showed an increase of maximal eccentric performances after the pure concentric training. No significant progression of maximal concentric performance was measured after eccentric training. [less ▲]

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See detailMuscular strength, functional performances and injury risk in professional and junior elite soccer players.
Lehance, Cédric ULiege; Binet, J.; Bury, Thierry ULiege 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 detailExplosive strength imbalances in professional basketball players.
Schiltz, Marc; Lehance, Cédric ULiege; Maquet, Didier ULiege et al

in Journal of Athletic Training (2009), 44(1), 39-47

CONTEXT: Despite the high rate of lower limb injuries in basketball players, studies of the dominant-limb effect in elite athletes often neglect injury history. OBJECTIVE: To determine lower limb ... [more ▼]

CONTEXT: Despite the high rate of lower limb injuries in basketball players, studies of the dominant-limb effect in elite athletes often neglect injury history. OBJECTIVE: To determine lower limb explosive-strength asymmetries in professional basketball players compared with junior basketball players and control participants. DESIGN: Cohort study. SETTING: Academic medical institution. PATIENTS OR OTHER PARTICIPANTS: 15 professional basketball players, 10 junior basketball players, and 20 healthy men. MAIN OUTCOME MEASURE(S): We performed an isokinetic examination to evaluate the knee extensor (Ext) and flexor (Fl) concentric peak torque at 60 degrees .s(-1) and 240 degrees .s(-1) and (Fl only) eccentric peak torque at 30 degrees .s(-1) and 120 degrees .s(-1). Functional evaluation included countermovement jump, countermovement jump with arms, 10-m sprint, single-leg drop jump, and single-leg, 10-second continuous jumping. Variables were compared among groups using analysis of variance or a generalized linear mixed model for bilateral variables. RESULTS: The 2 groups of basketball players demonstrated better isokinetic and functional performances than the control group did. No differences in functional or relative isokinetic variables were noted between professional and junior basketball players. Professional players with a history of knee injury failed to reach normal knee extensor strength at 60 degrees .s(-1). Knee Ext (60 degrees .s(-1)) and Fl (eccentric 120 degrees .s(-1)) torque values as well as 10-second continuous jumping scores were higher in those professional players without a history of knee injury than those with such a history. Compared with the group without a history of knee injury, the group with a history of knee injury maintained leg asymmetry ratios greater than 10% for almost all isokinetic variables and more than 15% for unilateral functional variables. CONCLUSIONS: The relative isokinetic and functional performances of professional basketball players were similar to those of junior players, with no dominant-side effect. A history of knee injury in the professional athlete, however, was reflected in bilateral isokinetic and functional asymmetries and should be considered in future studies of explosive strength. [less ▲]

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See detailInjuries, risk factors and prevention initiatives in youth sport
Frisch, Anne ULiege; Croisier, Jean-Louis ULiege; Urhausen, Axel et al

in British Medical Bulletin (2009), 92

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See detailCardiovascular Responses to Static Assessments of Trunk Muscles
Demoulin, Christophe ULiege; Grosdent, Stéphanie ULiege; Bury, Thierry ULiege et al

in Journal of Musculoskeletal Pain (2009), 17(4), 378-389

Objectives: To investigate the cardiovascular responses to standard static assessments of strength and endurance of trunk extensor muscles. Methods: Trunk extensor performances of ten healthy men, 48.2±5 ... [more ▼]

Objectives: To investigate the cardiovascular responses to standard static assessments of strength and endurance of trunk extensor muscles. Methods: Trunk extensor performances of ten healthy men, 48.2±5.6 years, and 10 healthy women, 49±5.7 years, were assessed by means of a maximum static strength test [consisting in maximal voluntary contractions [MVC] performed with a specific dynamometer], and two static endurance tests [the Sorensen test, and a 50 percent MVC test]. Heart rate [HR], auscultatory systolic [SBP], and diastolic blood pressure [DBP] were recorded throughout the tests. Results: The MVCs induced significant increases of HR and SBP [mean peak values averaging 90 [female] to 95 [male] beats per minute and 133 [female] to 141 [male] mmHg]. The HR, SBP, and DBP values increased significantly across time throughout both endurance static tests. At the end of these tests, mean HR, SBP, and DBP reached 114 to 122 beats per minute, 172 to 185 mmHg, and 112 to 120 mmHg. Genders differed significantly with regard to holding times [longer in females], but a gender effect was only found on SBP [higher in males]. Heart rate and SBP increases were significantly higher in males than in female subjects. Conclusions: The strength test seems less demanding than expected, though our results need to be confirmed. Standard static endurance tests yield sizeable functional stress on the cardiovascular system. Our study emphasizes the need to exclude subjects with cardiac trouble from such efforts and suggests the relevance of monitoring cardiovascular parameters if tests are performed until exhaustion. [less ▲]

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See detailExercice musculaire excentrique
Croisier, Jean-Louis ULiege; Codine, Philippe

Book published by Masson (2009)

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See detailIsokinetic assessment of the scapular muscles in serratus anterior dysfunction
Forthomme, Bénédicte ULiege; Wang, François-Charles ULiege; Crielaard, Jean-Michel ULiege et al

in Journal of Rehabilitation Medicine Supplement (2008, June), 47

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See detailCase report of isolated rectus femoris atrophy
Kaux, Jean-François ULiege; Wang, François ULiege; Kurth, Isabelle ULiege et al

in Journal of Rehabilitation Medicine Supplement (2008, June)

Introduction: Non-traumatic neuromuscular lesions of only one muscular portion of the quadriceps are rare and poorly described in literature. Aim: The goal of our study was to investigate the possible ... [more ▼]

Introduction: Non-traumatic neuromuscular lesions of only one muscular portion of the quadriceps are rare and poorly described in literature. Aim: The goal of our study was to investigate the possible causes of this pathology and to objectively quantify the functional consequences of this isolated atrophy from the rectus femoris on the total muscular performances of the quadriceps. Patient and Method: A male patient, 44 years old, presented an isolated atrophy of the right rectus femoris without pain nor history of previous traumatic event. He reported occasional paraesthesias on anterior right thigh. Electromyographic exploration of the lower limbs, imagery (echography and MRI) and isokinetic test were undertaken by the patient. Results: Imagery explorations showed the atrophy of the right rectus femoris combined with fatty degeneration but this exam did not allow determining the actual etiology. Therefore, a precise diagnosis was not allowed, even if the EMG confirmed the presence of important signs of specific and isolated denervation only in the right rectus femoris. The isokinetic test, performed in the classical sitting position, highlighted symmetrical performances for flexors of the knee and a moderately decrease in the right concentric quadriceps torque (-10%). A complementary isokinetic assessment, in a lying supine position, demonstrated a more marked deficit of this right quadriceps (higher than -30%). Conclusion: No precise etiology was shown for this isolated atrophy of the right rectus femoris. Nevertheless, we brought back the importance to lay the patient in a lying supine position in order to preferentially investigate the rectus femoris performances through an isokinetic test. [less ▲]

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See detailWhole body vibration and fibromyalgia: Influence on muscle performances
Maquet, Didier ULiege; Philippe, Isabelle; Faymonville, Marie ULiege et al

in Journal of Rehabilitation Medicine Supplement (2008, June), 47

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See detailGait analysis during an original walking test: application in fibromyalgia syndrome
Maquet, Didier ULiege; Chapelier, Dominique; Bouquegneau, Adeline ULiege et al

in Journal of Rehabilitation Medicine Supplement (2008, June), 47

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See detailProtocole de résistance à la fatigue adapté aux rotateurs internes et externes de l’épaule
Forthomme, Bénédicte ULiege; Maquet, Didier ULiege; Lehance, Cédric ULiege et al

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

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See detailAnalyse de la marche à partir d’un accéléromètre triaxial : mise au point d’une épreuve de détection de la fatigue
Maquet, Didier ULiege; Chapelier, Dominique; Bouquegneau, Adeline ULiege et al

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

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

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

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See detailQuel protocole pour l’évaluation de la résistance à la fatigue du genou ?
Croisier, Jean-Louis ULiege; Maquet, Didier ULiege; Forthomme, Bénédicte ULiege et al

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

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See detailEvaluation de l’équilibre et de la force explosive des membres inférieurs dans une population jeune
Frisch, Anne ULiege; Urhausen, A.; Seil, R. et al

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

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See detailExploration musculaire isocinétique dans la sclérose en plaques : épreuves de force et de fatigabilité
Maquet, Didier ULiege; Dive, Dominique ULiege; Hengen, Christine ULiege et al

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

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See detailEvaluation isocinétique des muscles scapulaires : application à une neuropathie
Forthomme, Bénédicte ULiege; Wang, François-Charles ULiege; Sternon, Anne-Catherine ULiege et al

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

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See detailThe Ability of Isoinertial Assessment to Monitor Specific Training Effects
Jidovtseff, Boris ULiege; Croisier, Jean-Louis ULiege; Scimar, Nathalie ULiege et al

in Journal of Sports Medicine & Physical Fitness (2008), 48(1), 55-64

AIM: The aim of this study was to investigate the ability of isoinertial assessment to monitor training effects. Both parametric and curve analysis of the results were used to underline the specificity of ... [more ▼]

AIM: The aim of this study was to investigate the ability of isoinertial assessment to monitor training effects. Both parametric and curve analysis of the results were used to underline the specificity of maximal strength and maximal velocity resistance training methods. METHODS: Twenty-four untrained subjects were randomly assigned into three groups: a maximal strength-training group (heavy loads: 80% to 98% of the one repetition maximum [1-RM]), a maximal velocity-training group (light loads: 25% to 50% of 1-RM) and a control group. All the subjects were tested in bench press exercises before and after the 6-week training period. An isoinertial dynamometer was used to assess velocity and power at four increasing loads: 35%, 50%, 70% and 95% of the 1-RM load. Post-test protocol also included a trial at 105% of the 1-RM load. RESULTS: Isoinertial assessment demonstrated for both training groups significant gains at each load. Some specific adaptations appeared: strength training presented a greater increase for average power (+49%, P<0.001) and average velocity (+48%, P<0.001) at 95% of 1-RM, while velocity training emerged as a more effective way to improve performance at 35% and 50% of 1-RM (+11 to 22%) in comparison with strength training (+7 to 12%). The analysis of power and velocity curves specified that strength training enhanced performance earlier in the movement, while velocity training extended the propulsive action at the end of movement. CONCLUSION: The original combination of parametric and curve isoinertial assessment appears to be a relevant method for monitoring specific training effects. The complementarity of both strength and velocity training programmes underlined in this study could lead to practical applications in profiling training programmes. [less ▲]

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See detailStrength imbalances and prevention of hamstring injury in professional soccer players: A prospective study
Croisier, Jean-Louis ULiege; Ganteaume, S.; Binet, Johnny et al

in Isokinetics & Exercise Science (2008), 16(3), 190

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See detailRelevance of inertial fatigue test in sport applications
Jidovtseff, Boris ULiege; Cordonnier, Caroline ULiege; Binard, Anne-Sophie et al

in Isokinetics & Exercise Science (2008), 16(3), 190

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