References of "Jidovtseff, Boris"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailInfluence de la fatigue sur les paramètres biomécaniques de la foulée mesurés par accéléromètrie
Jidovtseff, Boris ULiege; RODRIGUEZ DE LA CRUZ, Carlos ULiege; Bury, Thierry ULiege et al

in Science et Sports (in press)

Aims of the study The aim of the study was to investigate the influence of fatigue on stride biomechanics measured by a portable accelerometer, the MyotestRun. Opportunities of the protocol allowed ... [more ▼]

Aims of the study The aim of the study was to investigate the influence of fatigue on stride biomechanics measured by a portable accelerometer, the MyotestRun. Opportunities of the protocol allowed additional analysis on the device reliability and sensitivity. Methods Thirty-two male subjects, divided in two groups (runners and control), were involved in the study and achieved a treadmill progressive VO2max test; repeated run at constant velocity on a track and a field test at 90% of the VvO2max until exhaustion. The biomechanical measurements obtained from the MyotestRun allow exploring the reliability, the influence of speed, the differences between treadmill and track stride and the influence of fatigue. Results Results show an excellent reproducibility of the MyotestRun values, except for the asymmetry of the stride. No significant stride difference appears between treadmill and track conditions. The progressive test shows that all the parameters evolve with speed increment, confirming the sensitivity of the MyotestRun. The study shows changes in the stride with the fatigue, such as an increase of the contact time, a decrease of the force. However any change in the stride frequency is observed. If the study shows that the fatigue pattern is more constant in the runners group it also highlights adaptations to fatigue that can be very different from one subject to another. Conclusion This study confirmed that MyotestRun is a useful device in the stride analysis. The influence of fatigue on the stride is in accordance with most of the studies while confirming very important interindividual differences. [less ▲]

Detailed reference viewed: 29 (3 ULiège)
Full Text
Peer Reviewed
See detailDevelopment of specific tests in bike-trials riders and relationship with jumping ability
Thomas, Pierre-Charles; Miny, Kévin ULiege; Jidovtseff, Boris ULiege

in Science et Sports (in press)

Aims of the study - The first aim of this study was to set a battery of field tests in order to assess specific muscular function of biketrial riders. The second aim was to investigate the discrimination ... [more ▼]

Aims of the study - The first aim of this study was to set a battery of field tests in order to assess specific muscular function of biketrial riders. The second aim was to investigate the discrimination of these tests by comparing the performance of elite and amateur riders. Material and method - Twenty ELITE biketrial riders and 13 biketrial amateurs (AMAT) underwent field tests. The battery of field tests consisted in four non specific jumping tests (SJ, CMJ,SBJ and Reactivity) and three original specific tests on the bike (bike gap, side-hop over an elastic and holding time on the back-wheel). All the tests were performed on the field with portable equipment. Results – The results show that bike specific tests are very discriminant: ELITE riders were significantly superior in each test (p<0.001) The 20in riders seem to have a greater jumping ability in comparison with the 24in riders. The correlation between the jumping field tests and the bike specific tests is fairly high (r>0.7). Conclusion – The field tests as well as the bike specific tests showed to be selective and discriminant for the biketrial rider’s. Jumping ability appears to be very important in order to achieve the elite level. [less ▲]

Detailed reference viewed: 119 (10 ULiège)
See detailL'activité physique chez l'enfant : un élément clé de sa qualité de vie
Jidovtseff, Boris ULiege

Scientific conference (2019, May 20)

Detailed reference viewed: 35 (5 ULiège)
See detailLe sport c'est bon pour... le cerveau !
Jidovtseff, Boris ULiege

Scientific conference (2019, March 14)

Detailed reference viewed: 45 (5 ULiège)
Full Text
Peer Reviewed
See detailIntérêt des microcourants pour prévenir/limiter la survenue de DOMS après un effort excentrique
Demoulin, Christophe ULiege; Hoyaux, A; Bornheim, Stephen ULiege et al

in Kinesitherapie, La Revue (2019, February), 19(206), 75-76

Detailed reference viewed: 43 (5 ULiège)
See detailLes dangers de l'hyper-spécialisation précoce
Jidovtseff, Boris ULiege

Scientific conference (2018, December 15)

Detailed reference viewed: 196 (11 ULiège)
Full Text
See detailLes risques de la spécialisation sportive précoce - les bienfaits de la diversification sportive précoce
Jidovtseff, Boris ULiege

Conference given outside the academic context (2018)

Detailed reference viewed: 53 (4 ULiège)
Peer Reviewed
See detailImplementing outdoor activities appropriate to children
Jidovtseff, Boris ULiege; De Sousa Morgado, Liliane ULiege; Delvaux, Anne ULiege

in Shirley Gray Malcolm Thorburn (Ed.) Bokk of abstracts (2018, July)

During early childhood it is critical to offer adapted physical activity that favors motor development and physical fitness. Outdoor activities with the children can be considered as effective situations ... [more ▼]

During early childhood it is critical to offer adapted physical activity that favors motor development and physical fitness. Outdoor activities with the children can be considered as effective situations that could achieve these outcomes. Indeed, the time spent outdoor is associated with the level of physical activity (Sallis, 2000). Moreover, it has been demonstrated that outdoor activities in a natural and affording environment influence physical activity play and motor development in children (Fjortoft, 2004). Implementing such outdoor activities appropriated to preschool children is presently investigated at the CEReKi. The CEReKi is an association of the University of Liège that organizes sport days for children aged from 3 to 8. It has a long experience about how to adapt indoor facilities and how to use equipment in order to meet children needs and to favour motor development and physical activity. For different reasons (reduction in the gym availability; interest in the development of interdisciplinary activities; affording natural environment next to the sport centrum), it has been decided to implement outdoor activities at the CEReKi and a reflexive approach has been engaged in order to start them during the spring of 2018. The presentation will focus on the global reflexive approach: determination of the aim of the new outdoor activities ; analysis of the opportunities and risks of the natural environment ; the arrangements that needs to be done in order to adapted the playscape to the children ; the opportunities to develop interdisciplinary activities where both physical activity and nature discovery are achieve at the same time ; precautions to take with children in order to make activities possible during most of the weathers conditions. A preliminary critical analysis of the implemented outdoor activities will be presented. References Sallis, J. F., Prochaska, J. J., & Taylor, W. C. (2000). A review of correlates of physical activity of children and adolescents. Medicine & science in sports & exercise, 32(5), 963-975. Fjørtoft, Ingunn. (2004). “Landscape as Playscape: The Effects of Natural Environments on Children’s Play and Motor Development.” Children, Youth and Environments 14(2): 21-44. [less ▲]

Detailed reference viewed: 17 (4 ULiège)
Full Text
See detailPassage de la catégorie minime à cadet : comment gérer ce passage délicat ?
Jidovtseff, Boris ULiege

Conference given outside the academic context (2018)

Detailed reference viewed: 24 (2 ULiège)
See detailDevenir un enfant actif : pourquoi et comment ?
Jidovtseff, Boris ULiege; Cloes, Marc ULiege

Conference (2018, March 23)

L’importance de l’activité physique dès l’enfance est devenue une évidence scientifique. Les bienfaits dépassent largement le cadre de la santé et du bien-être de l’individu. Les études démontrent un ... [more ▼]

L’importance de l’activité physique dès l’enfance est devenue une évidence scientifique. Les bienfaits dépassent largement le cadre de la santé et du bien-être de l’individu. Les études démontrent un impact positif sur la scolarité ou encore sur l’économie à long terme. A l’inverse une absence d’activité physique s’accompagne de risques accrus pour la santé comme l’obésité ou le diabète (1). L’évolution de notre mode de vie occidental montre, au fil des années, une réduction de cette activité, parallèlement à une augmentation du temps d’écran. Les recommandations internationales décrites par l’OMS (2) sont loin d’être atteintes et si des actions fortes ne sont pas posées, le risque que la situation s’empire est élevé. Durant l’enfance il ne suffit pas de faire de l’activité physique, il est également important de favoriser le développement moteur de l’enfant. En effet, les études scientifiques (3) montrent clairement que les compétences motrices vont influencer la perception de compétence, qui va elle-même favoriser la participation active de l’enfant, ce qui renforcera la condition physique de l’enfant ainsi que son niveau d’activités physique. Pour rendre les enfants plus actifs, il est indispensable de favoriser une approche intégrée, à l’image du concept Canadien de Physical Litteracy (4) qui vise à développer la motricité globale de l’enfant tout en nourrissant la confiance en soi, ainsi que la prise de conscience de l’importance de bouger. Pour espérer avoir une efficacité sur la santé il est indispensable d’envisager une approche qui intègre une activité physique appropriée à une alimentation saine ainsi qu’à une limitation des comportements sédentaires comme le temps d’écran. Les actions pouvant être menées dans les principaux contextes de vie des enfants (maison, école, clubs, espaces publics) seront proposées. L’action potentiellement la plus efficace reste toutefois une action politique synchronisée visant à la fois le ministère de la santé, de l’éducation et du sport, qui favoriserait à tous les niveaux socio-écologiques (5) l’activité physique des enfants. Les enjeux de santé publique, économique, de bien-être et de développement à long terme en valent certainement la peine ! 1. MacCallum, L., Howson, N., & Gopu, N. (2012). Designed to move. A physical activity action agenda. Published by The American College of Sports Medicine, Nike & The International Council of Sport Science and Physical Education. 2. Organisation Mondiale de la santé. (2010). Global recommendations on physical activity for health. 3. Stodden, D. F., Goodway, J. D., Langendorfer, S. J., Roberton, M. A., Rudisill, M. E., Garcia, C., & Garcia, L. E. (2008). A developmental perspective on the role of motor skill competence in physical activity: An emergent relationship. Quest, 60(2), 290-306 4. Balyi, I., Way, R., & Higgs, C. (2013). Long-term athlete development. Human Kinetics. 5. Sallis, J. F., Cervero, R. B., Ascher, W., Henderson, K. A., Kraft, M. K., & Kerr, J. (2006). An ecological approach to creating active living communities. Annu. Rev. Public Health, 27, 297-322. [less ▲]

Detailed reference viewed: 164 (24 ULiège)
Full Text
See detailWat zijn de risico’s van vroege sportspecialisatie op de gezondheid van kinderen?
Jidovtseff, Boris ULiege

in JGZ: Tijdschrift voor Jeugdgezondheidszorg (2018), 50(1), 2-6

Enkele wetenschappelijke studies uit de jaren 90 toonden aan dat wie in bepaalde domeinen zoals sport een zeer hoog niveau wil bereiken, al heel vroeg en intens moet beginnen te trainen. Wie te lang wacht ... [more ▼]

Enkele wetenschappelijke studies uit de jaren 90 toonden aan dat wie in bepaalde domeinen zoals sport een zeer hoog niveau wil bereiken, al heel vroeg en intens moet beginnen te trainen. Wie te lang wacht, maakt maar weinig kans om ooit de top te bereiken. De media-aandacht voor jonge sporters, de organisatie van belangrijke jeugdcompetities en de prestatiedrang op erg jonge leeftijd, hebben bijgedragen tot vroege specialisaties. Echter toonden de onderzoekers aan dat die aanpak niet bijzonder efficiënt is en bovendien de ontwikkeling en de gezondheid van het kind in het gedrang kan brengen. De laatste jaren worden alternatieve en kindgerichte oplossingen voorgesteld als ontwikkelingsmodellen op lange termijn. [less ▲]

Detailed reference viewed: 31 (2 ULiège)
Full Text
See detailPromouvoir l’activité physique du jeune enfant, à domicile, à l’école, dans les loisirs
Jidovtseff, Boris ULiege; Cloes, Marc ULiege

in InfONE - Le magazine de l'Office de la Naissance et de l'Enfance (2018), 2

Detailed reference viewed: 173 (45 ULiège)
Peer Reviewed
See detailMeasuring children motor skills with MOBAK-1: criteria adaptation and comparison of two scoring systems
Jidovtseff, Boris ULiege; Paulus, Camille ULiege; De Sousa Morgado, Liliane ULiege

in Electronic Abstract book AIESEP 2017 (2017, November 07)

Introduction The MOBAK-1 testing battery has been recently developed with the aim of assessing the locomotion and object-control abilities of first grade children. Previous researches have demonstrated ... [more ▼]

Introduction The MOBAK-1 testing battery has been recently developed with the aim of assessing the locomotion and object-control abilities of first grade children. Previous researches have demonstrated the global interest of this testing battery (1,2). However, a critical analysis of children failures in the tests revealed that some failures were related to the misunderstanding of the instruction or to unsuitable criteria and not to children inability (2). Moreover, the discrimination of the scoring system was also questioned. The aim of the study is to improve criteria in order to avoid the failure that are not related to children ability and to compare the actual dichotomous scoring system with another scoring system taking in consideration the progression of the children. Methods The MOBAK-1 testing battery will be addressed to 30 first grade children. Criteria for each test will be adapted according to previous observations (2) and will include familiarization with the task and additional trial when it is clear that the failure is not due to children ability. All the children will be assessed at the same time with the actual dichotomous scoring system and with an original scoring system that takes the children level of development into account. Results We hypothesized that the adaptation of the criteria will improve the testing battery discrimination. We also expected that the scoring system based on children progression will be more accurate but will be more difficult to be used by unexperienced teachers. Conclusion According to the results of the study, concrete improvements will be addressed to the researchers who work on MOBAK testing battery development. References 1. Herrmann, C., Gerlach, E., & Seelig, H. (2015). Development and validation of a test instrument for the assessment of basic motor competencies in primary school. Measurement in Physical Education and Exercise Science, 19(2), 80-90. 2. Jidovtseff B., Vandeloise V., Cloes M., Morgado L., Mornard M. (2017). Measuring children motor skills with MOBACK-1: descriptive data and critical analysis Book of abstracts. CIAPSE 2017. Finland. [less ▲]

Detailed reference viewed: 38 (3 ULiège)
Peer Reviewed
See detailPictorial scale of perceived water competences The building of a new tool adapted to the children
Jidovtseff, Boris ULiege; De Sousa Morgado, Liliane ULiege; Sääkslahti, Arja et al

Conference (2017, November 07)

Introduction Researches have demonstrated the interest to develop pictorial instrument for assessing fundamental movement skill perceived competence in young children (1). Perceived competence appears ... [more ▼]

Introduction Researches have demonstrated the interest to develop pictorial instrument for assessing fundamental movement skill perceived competence in young children (1). Perceived competence appears appear at least as important as actual competence as it may more directly affect motivation towards an active behavior (2). For different reasons, it is worth developing such a pictorial instrument for assessing children’s perceived water competencies. With that aim, a collective of researchers have decided to work on the development of such a new tool. Methods The collective of researcher started in 2016 during AIESEP congress in Laramie (USA) and grew up by including additional experts specialized in aquatic skill and/or pictorial scale tools. Videos skype conference and email exchanges were used for communication. Important discussions and decisions concerned the list of aquatic competence skills, the scoring system, the selection of an illustrator and the characteristics of the pictures. In order to build the tool within a reasonable delay, timing with the different actions has been suggested. Results A first list of water competencies has been dressed based on scientific references (3-5). According to these skills, different practical situation have been selected to be included in the pictorial scale. The collective of researcher decided to start with a three level score system including ‘not able’, ‘in progression’ and ‘able’ pictures for each situation. All pictures must be digital in such a way they could be used on paper and/or on computer and android/apple applications. Pictures have to be neutral and to be representative of different cultures and contexts in order to be adapted to all countries and situations. The possibility of having the same image in different cultural contexts is investigated. The different steps in the scale development have been scheduled and will include: content validity, face validity, construct validity, reliability, data collection. Conclusion The development of a pictorial instrument for assessing children perceived water competencies is progressing well and a usable version of the tool should be available by the end of 2017 References 1. Barnett, L. M., Ridgers, N. D., Zask, A., & Salmon, J. (2015). Face validity and reliability of a pictorial instrument for assessing fundamental movement skill perceived competence in young children. Journal of science and medicine in sport, 18(1), 98-102. 2. Barnett, L. M., Morgan, P. J., van Beurden, E., & Beard, J. R. (2008). Perceived sports competence mediates the relationship between childhood motor skill proficiency and adolescent physical activity and fitness: a longitudinal assessment. International journal of behavioral nutrition and physical activity, 5(1), 40. 3. Langendorfer, S. J., & Bruya, L. D. (1995). Aquatic readiness: Developing water competence in young children. Human Kinetics 1. 4. Langendorfer (2015). Changing Learn-to-Swim and Drowning Prevention Using Aquatic Readiness and Water Competence, International Journal of Aquatic Research and Education, 2015, 9, 4-11 5. Quan et al. (2015). Toward Defining Water Competency: An American Red Cross Definition, International Journal of Aquatic Research and Education, 2015, 9, 12-23 [less ▲]

Detailed reference viewed: 77 (10 ULiège)
Full Text
Peer Reviewed
See detailChildren motor skills competencies in Wallonia: descriptive data and testing battery discrimination analysis
Jidovtseff, Boris ULiege; Vandeloise, Vérane; De Sousa Morgado, Liliane ULiege et al

Conference (2017, September 16)

Detailed reference viewed: 22 (2 ULiège)
Full Text
See detailLa lecture partagée pour améliorer l’entrée dans l’écrit chez des enfants issus de population défavorisée
Maillart, Christelle ULiege; Binamé, Florence ULiege; Vossius, Line ULiege et al

Conference (2017, May 19)

Les enfants issus de populations défavorisées sont à risque de présenter des difficultés d’apprentissage en lecture. Sans intervention appropriée, le décalage entre les performances de ces enfants et leur ... [more ▼]

Les enfants issus de populations défavorisées sont à risque de présenter des difficultés d’apprentissage en lecture. Sans intervention appropriée, le décalage entre les performances de ces enfants et leur pairs persiste voire se creuse avec le temps (Lonigan et al., 2015). Cette communication présente les résultats d’une étude en intervention ciblant la littératie émergente chez de jeunes enfants scolarisés en fin de maternelle. Elle fait partie d’un projet plus large comparant les effets de différentes interventions ciblées 1) sur les précurseurs du calcul, 2) sur des activités psychomotrices ou 3) sur la littératie émergente chez trois groupes d’enfants prése. Pour cette dernière intervention, un groupe de 10 enfants d’âge préscolaire âgés de 51 mois à 70 mois, tous issus d’une école accueillant des enfants issus de milieux socio-économiques faibles, ont participé à une intervention en lecture partagée pendant dix semaines, trente minutes par jour, cinq fois par semaine. La lecture partagée est considérée comme une « bonne pratique » pour le développement de la littératie émergente (National Early Literacy Panel, 2008). Elle cible à la fois des aptitudes concernant le code (conscience phonologique ou connaissance de l’alphabet) et le sens (vocabulaire, syntaxe, grammaire narrative) (Piasta, 2016). Les performances des enfants dans les différentes mesures langagières ou de lecture, évaluées avant et après l’intervention, ont été comparées aux performances obtenues par des enfants ayant participé aux deux autres interventions. Les effets à court terme (pré, post intervention) mais aussi à long terme sur le développement du langage écrit seront présentés, permettant de distinguer des effets d’entrainement spécifique ou plus de stimulation plus globale. [less ▲]

Detailed reference viewed: 458 (29 ULiège)