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ENREGISTREMENTS VIDEO

La science des acrobates

Carrière, Daniel ; Faure, Louis ; Découverte ; École nationale de cirque ; Cossin, Marion ; Aubertin, Patrice ; Prince, François ; Duquette, Hugo ; Dolhaine, Antonia ; Bouchard, Charles-Éric
Montréal : Société Radio-Canada, 2015

L’École nationale de Cirque de Montréal forme depuis 30 ans des artistes de cirque pour tous les chapiteaux du monde. La formation de 3 ans est exigeante et peut entraîner du surmenage et des blessures. Cette année l’École s’est tournée vers la science pour améliorer son programme de formation. Ces mesures permettent d’éviter des blessures et de mieux apprécier le travail de ces athlètes de haut niveau. [résumé du diffuseur]

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ARTICLES DE PERIODIQUES

Effect of jump heights, landing techniques, and participants on vertical ground reaction force and loading rate during landing on three different Korean teeterboards

Cossin, Marion ; Ross, Annie ; Prince, François
Proceedings of the Institution of Mechanical Engineers Part P Journal of Sports Engineering and Technology, 9 pages, November 2021

Korean teeterboard is one of the most physically and technically demanding circus disciplines. Two performers take turns jumping vertically and land with high impact. The aims of this study were to (1) compare the stiffness across three different teeterboards, and (2) compare Peak Landing Force (PLF) and Maximal Loading Rate (MLR) of four acrobats performing jumps from three teeterboards using four landing techniques (normal, smooth, straight legs, and empty board). Pressure sensors were used to determine recorded forces under the feet, while Boosted Regression Trees (BRT) was used to analyze factors contributing to PLF and MLR. Standard static loading protocol was used to estimate teeterboard stiffness. PLF and MLR increased with jump height. PLF and MLR were reached when landing on the teeterboard with the highest stiffness. The “normal” and “straight legs” landing techniques were associated with higher PLF and MLR. The BRT model was able to associate both PLF and MLR with jump height, participant, teeterboard, and landing technique factors. PLF reached 13.5 times the body weight when landing on the stiffer teeterboard using the straight legs technique. Trainers should be aware of the injury risk to teeterboard acrobats during landing.
Korean teeterboard is one of the most physically and technically demanding circus disciplines. Two performers take turns jumping vertically and land with high impact. The aims of this study were to (1) compare the stiffness across three different teeterboards, and (2) compare Peak Landing Force (PLF) and Maximal Loading Rate (MLR) of four acrobats performing jumps from three teeterboards using four landing techniques (normal, smooth, straight ...

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ARTICLES DE PERIODIQUES

A kinematic analysis of jumping technique in elite Korean teeterboard athletes : a case-study

Cossin, Marion ; Ross, Annie ; Prince, François
Sports Biomechanics, vol. 22 n°2, p. 246-254, 2021

Korean teeterboard is a circus discipline that consists of a board pivoted at its centre upon which two acrobats are catapulted in turn performing acrobatic jumps. This paper presents one of the first studies that focuses on investigating the factors that contribute to jump height in Korean teeterboard. A total of 120 jumps were recorded from two acrobats using motion capture. Selected variables were input to a Boosted Regression Trees (BRT) analysis, corresponding to three specific events: acrobat landing, rotation of the teeterboard and acrobat take-off. Significant predictor variables were identified as: 1) body’s centre of mass vertical velocity at the first contact with the teeterboard (relative importance: 69.4%) for landing, 2) maximum downward vertical teeterboard velocity for teeterboard rotation (72.7%) and 3) maximum upward vertical teeterboard velocity for take-off (50.4%). Kinematic parameters such as hip range of motion during take-off also contributed significantly to jump height (37.2%). The results provide understanding of the complex kinematics between two acrobats and a flexible pivoting board. Teeterboard designers, acrobats and trainers should be aware that maximising these parameters are the best strategies to improve jump height.
Korean teeterboard is a circus discipline that consists of a board pivoted at its centre upon which two acrobats are catapulted in turn performing acrobatic jumps. This paper presents one of the first studies that focuses on investigating the factors that contribute to jump height in Korean teeterboard. A total of 120 jumps were recorded from two acrobats using motion capture. Selected variables were input to a Boosted Regression Trees (BRT) ...

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ARTICLES DE PERIODIQUES

Injury patterns and injury rates in the circus arts : an analysis of 5 years of data from Cirque du Soleil.

Shrier, Ian ; Meeuwisse, Willem H. ; Matheson, Gordon O. ; Wingfield, Kristin ; Steele, Russell J. ; Prince, François ; Hanley, James ; Montanaro, Michael
juin 2009

Human circus arts are gaining increasing popularity as a physical activity with more than 500 companies and 200 schools. The only injury data that currently exist are a few case reports and 1 survey.


Cote : 617.102 701 5 S5614i 2009

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