References of "Jidovtseff, Boris"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailApport de la musculation en sport collectifamateur : exemple du handball féminin
Jidovtseff, Boris ULg; Frère, Pauline; Theunissen, Catherine ULg

in Science & Sports (in press)

Introduction. — The aim of the study was to verify, in a non-professional handball female, if theintroduction of two short workouts per week during all season has a positive impact on muscularperformance ... [more ▼]

Introduction. — The aim of the study was to verify, in a non-professional handball female, if theintroduction of two short workouts per week during all season has a positive impact on muscularperformance.Methods. — Eighteen female playing handball at the top Belgian level were monitored duringthe complete season. Ten of these girls (‘‘Muscu’’ group) achieved, in addition to their usualtraining, two short (30 minutes) strength training sessions weekly. The other (‘‘Control’’ group)followed the usual training, without any strength training session. A battery of tests (leg power,arm power, vertical jump, sprint, throwing, flexibility) has been set up to four times during theseason to follow up muscular performance.Results. — According to the literature, the ‘‘Control’’ group showed any change in performanceduring the year. By contrast, ‘‘Muscu group results demonstrated that the short strength trai-ning program was efficient, with significant improvements in leg power (P < 0.005) and sprint(P < 0.05) tests. Increase in vertical jump was very close to the level of significance (P = 0.06).Arms power did not improve but appeared to be superior in the ‘‘Muscu’’ group in comparisonwith ‘‘Control’’ at the end of the season, which was not the case at the beginning.© 2013 Elsevier Masson SAS. All rights reserved. [less ▲]

Detailed reference viewed: 298 (13 ULg)
Full Text
See detail1er Colloque Guy Namurois : Livre des résumés
Jidovtseff, Boris ULg; Halleux, Philippe; Lambert, Eric et al

in Jidovtseff, Boris (Ed.) 1er Colloque Guy Namurois : Livre des résumés (2014, February 22)

Colloque multi-disciplinaire en l'honneur de Guy Namurois

Detailed reference viewed: 24 (7 ULg)
Full Text
Peer Reviewed
See detailINFLUENCE OF JUMPING STRATEGY ON KINETIC PARAMETERS
Jidovtseff, Boris ULg; Quievre, Jacques; Harris Nigel et al

in Journal of sports medicine and physical fitness (2014), 54

Aim: Different jumping strategies can be used during plyometric training. Understanding how manipulating variables such as the counter-movement, flexion amplitude, the drop and the load could influence ... [more ▼]

Aim: Different jumping strategies can be used during plyometric training. Understanding how manipulating variables such as the counter-movement, flexion amplitude, the drop and the load could influence neuromuscular adaptation would be beneficial for coaches and athletes. The purpose of this study was to analyze how these variations in the vertical jump influenced kinematic and kinetic parameters as measured by a force platform. Methods: Ten male subjects performed, eight kinds of vertical jumps on a force platform : (1) squat jump (SJ); (2) shallow counter-movement jump (S-CMJ); (3) natural counter-movement jump (N-CMJ); (4) deep counter-movement jump (D-CMJ); (5) loaded (20kg) counter-movement jump (20-CMJ); (6) shallow drop jump (S-DJ); (7) deep drop jump (D-DJ); (8) six consecutive jump test (6CJ). Customised Labview software was used to calculate time, displacement, velocity, acceleration, force, power, impulse and stiffness. After statistical analysis, jumping variables were grouped to achieve spécific training objectives. Results: The mechanical parameters were largely influenced by the jump strategy, all the deep jumps produced superior jump heights and concentric velocities as compared to the shallow jumps. The exercises associated with greater power outputs were the S-DJ (5386±1095w) and 6CJ (5795±1365w) that involved short impulse durations and very high accelerations. The greatest values of muscle stiffness were not recorded during the highest vertical jumps, meaning that stiffness is not critical for jumping high. Conclusion: This study gives an overview of what is changing when we manipulate jumping variables and instructions given to the athletes. Plyometric exercises should be carefully selected according to the sport and specific individual needs. [less ▲]

Detailed reference viewed: 33 (2 ULg)
Full Text
See detailAccoutumance à l'eau : 25 ans de pratique et d'expérience avec le CEReKi
Jidovtseff, Boris ULg; Mornard, Manhattan ULg; Delvaux, Anne ULg

Conference given outside the academic context (2013)

Le diaporama présente de manière synthétique l'approche de l'accoutumance à l'eau recommandée par le CEREKI ainsi que les résultats d'études montrant son efficacité.

Detailed reference viewed: 27 (4 ULg)
Full Text
Peer Reviewed
See detail1RM PREDICTION AND LOAD-VELOCITY RELATIONSHIP
Jidovtseff, Boris ULg; Cronin, John; Crielaard, Jean-Michel ULg et al

in Abstract book of 8th International Conference on Strength Training (2012, October)

Detailed reference viewed: 24 (3 ULg)
Full Text
Peer Reviewed
See detail1RM PREDICTION AND LOAD-VELOCITY RELATIONSHIP
Jidovtseff, Boris ULg; Cronin, John; Villaret, Jérémy et al

Poster (2012, October)

Detailed reference viewed: 25 (4 ULg)
Full Text
Peer Reviewed
See detailMODELING RELATIONSHIPS BETWEEN JUMP HEIGHT, GROUND CONTACT TIME, REACTIVITY AND STIFFNESS
Jidovtseff, Boris ULg; Apolloni, Jérémy; Harris, Nigel et al

in Abstract book of 8th International Conference on Strength Training (2012, October)

Detailed reference viewed: 35 (15 ULg)
Full Text
See detailApprentissage et contenus en fonction de l’âge
Jidovtseff, Boris ULg; Theunissen, Catherine ULg

Learning material (2012)

Ces notes présentent l'évolution de l'apprentissage en fonction de l'âge.

Detailed reference viewed: 53 (2 ULg)
Full Text
Peer Reviewed
See detailINFLUENCE OF FATIGUE ON THE STRIDE CHARACTERISTICS DURING AN INTENSE ENDURANCE RUNTEST
Jidovtseff, Boris ULg; Rodriguez de la Cruz, Carlos ULg; Croisier, Jean-Louis ULg et al

in Abstract book of 17th ECSS Congress (2012, July)

Detailed reference viewed: 100 (36 ULg)
Full Text
Peer Reviewed
See detail1RM PREDICTION AND LOAD-VELOCITY RELATIONSHIP
Jidovtseff, Boris ULg; Cronin, John; Crielaard, Jean-Michel ULg et al

in Abstract book of 17th ECSS congres (2012, July)

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailValidation d’une activité de psychomotricité adaptée aux grands prématurés
Jidovtseff, Boris ULg; Vandermeulen, Mary; Dutilleux, Benjamine ULg et al

Poster (2012, May 23)

Pendant la petite enfance, les grands prématurés restent fragiles. Une étude récente (de Kieviet et al, 2009) met en évidence un retard psychomoteur de cette population par rapport à la normale. A partir ... [more ▼]

Pendant la petite enfance, les grands prématurés restent fragiles. Une étude récente (de Kieviet et al, 2009) met en évidence un retard psychomoteur de cette population par rapport à la normale. A partir de 3 ans, de nombreuses activités existent pour stimuler leur développement moteur mais avant cet âge, rien n’est organisé. Nous avons donc décidé de mettre sur pied une activité de psychomotricité adaptée à cette population, entre 1,5 et 3 ans. L’objectif de cette étude consistait à valider cette activité de développement originale. Appliquant les principes des recherches-action, nous avons structuré notre démarche en quatre phases : (1) la planification durant laquelle nous avons mené une réflexion sur l’organisation et le contenu de l’activité ; (2) l’intervention au cours de laquelle fut expérimentée l’activité et fut collectée une série d’informations ; (3) l’analyse des données et ; (4) l’aménagement d’un nouveau modèle tenant compte des étapes précédentes. La validation menée lors de l’intervention repose sur la triangulation des données : interview et questionnaires proposés aux parents, questionnaire adressé aux moniteurs et interviews semi-structurées réalisées auprès de 10 experts de la psychomotricité et/ou des prématurés (pédiatres, kinésithérapeutes, logopèdes, psychologues, psychomotriciens). Une analyse de contenu a été réalisée afin de dégager les éléments de sens qui ont été compilés. Les différents acteurs s’accordent sur la majorité des éléments proposés dans les activités (contenu, matériel, espaces, diversité) et sur l’organisation (structuration, jeux libre, binôme kinésithérapeute-éducateur sportif). Des ajustements paraissent nécessaires au niveau de la phase d’accueil et du rituel de fin de séance. La présence des parents durant l’activité fait débat. Le projet a été initialement bien pensé et la majorité du concept a été validée par les experts. De légères adaptations ont été programmées. Cette étude renforce la crédibilité de l’initiative dont l’intérêt a été chaleureusement salué par les parents. [less ▲]

Detailed reference viewed: 67 (10 ULg)
Full Text
Peer Reviewed
See detailINFLUENCE DE LA MÉTHODE CEREKI SUR LE NIVEAU D’ACCOUTUMANCE À L’EAU
Jidovtseff, Boris ULg; Vandermeulen, Mary; Schiettecatte, Delphine et al

in Abstract book de la 7ème Biennale de l'Association pour la Recherche en Intervention en Sport (ARIS) (2012, May)

Detailed reference viewed: 12 (2 ULg)
Full Text
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)

Detailed reference viewed: 50 (7 ULg)
Full Text
Peer Reviewed
See detailUsing the load-velocity relationship for 1RM prediction.
Jidovtseff, Boris ULg; Harris, N. K.; Crielaard, Jean-Michel ULg et al

in Journal of Strength & Conditioning Research (2011)

Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using the load-velocity relationship for 1RM prediction. J Strength Cond Res 24(x): 000-000, 2009-The purpose of this study was to investigate ... [more ▼]

Jidovtseff, B, Harris, NK, Crielaard, J-M, and Cronin, JB. Using the load-velocity relationship for 1RM prediction. J Strength Cond Res 24(x): 000-000, 2009-The purpose of this study was to investigate the ability of the load-velocity relationship to accurately predict a bench press 1 repetition maximum (1RM). Data from 3 different bench press studies (n = 112) that incorporated both 1RM assessment and submaximal load-velocity profiling were analyzed. Individual regression analysis was performed to determine the theoretical load at zero velocity (LD0). Data from each of the 3 studies were analyzed separately and also presented as overall group mean. Thereafter, correlation analysis provided quantification of the relationships between 1RM and LD0. Practically perfect correlations (r = approximately 0.95) were observed in our samples, confirming the ability of the load-velocity profile to accurately predict bench press 1RM. [less ▲]

Detailed reference viewed: 33 (7 ULg)
Full Text
Peer Reviewed
See detailAnalyse comparative de différentes modalités d’électrostimulation du quadriceps fémoral
Tubez, François ULg; Jidovtseff, Boris ULg; Wang, François-Charles ULg et al

in Kinesitherapie Revue (2010), 10(107), 36-40

Objective: The purpose of this study is to assess the relevance of a technological innovation (Mi-Scan function, Compex company) offered by the range of rehabilitative and/ or sport oriented stimulators ... [more ▼]

Objective: The purpose of this study is to assess the relevance of a technological innovation (Mi-Scan function, Compex company) offered by the range of rehabilitative and/ or sport oriented stimulators. This analysis examines the effectiveness to induce muscle contraction and the reproductibility of this function. Method: A comparison of electrically evoked torques of the quadriceps was performed with and without the aid of this function, both at submaximal and maximal stimulation intensity. Moreover, this function was studied several times under identical conditions (reproducibility study). Results: No superior efficacy has been found when using a system including the "Mi" function over a system that did not use this feature. Additionally, our results have highlighted a poor reproducibility of measurements obtained by the "Mi"sensor. Discussion: Important doubts must be made concerning the validity and reliability of this tool. [less ▲]

Detailed reference viewed: 105 (42 ULg)
Full Text
Peer Reviewed
See detailMechanical comparison of eight vertical jump exercises
Jidovtseff, Boris ULg; Cronin, John; Harris, Nigel et al

in Computer Methods in Biomechanics & Biomedical Engineering (2010, September), 13(S1), 77-78

Detailed reference viewed: 107 (10 ULg)
Full Text
Peer Reviewed
See detailUnderstanding position transducer technology for strength and conditioning practitioners
Harris, Nigel; Cronin, John; Taylor, Kristie-Lee et al

in Strength & Conditioning Journal (2010), (34), 66-79

Detailed reference viewed: 35 (1 ULg)