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Cinématique du grand battement et du développé chez des danseurs amateurs : effets à court terme d’un étirement statique ou dynamique
11 décembre 2020,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
Les jeunes danseurs amateurs semblent utiliser majoritairement l’étirement statique. Or, la littérature montre également l’efficacité de l’étirement dynamique sur la performance des sportifs. L’un de ces étirements est-il dès lors plus favorable à l’exécution de deux mouvements de danse classique, le grand battement et développé ? Seize participants ont réalisé ces mouvements dans trois conditions ...
NOMADe : présentation du projet et premières réalisations
11 décembre 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
Où le projet INTERREG FWVL NOMADe (NeurOMuskuloskeletAl Disorders – e-learning ecosystem) est présenté, ainsi que deux réalisations illustrant la première année de son déroulement
Adiabatic invariants drive rhythmic human motion in variable gravity
01 décembre 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
Voluntary human movements are stereotyped. When modeled in the framework of classical mechanics they are expected to minimize cost functions that may include energy, a natural candidate from a physiological point of view also. In time-changing environments, however, energy is no longer conserved—regardless of frictional energy dissipation—and it is therefore not the preferred candidate for any cost ...
Gravitating Bubbles of Gluon Plasma above Deconfinement Temperature
13 octobre 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
The equation of state of SU(3) Yang–Mills theory can be modelled by an effective Z3−
symmetric potential depending on the temperature and on a complex scalar field ϕ
. Allowing ϕ
to be dynamical opens the way to the study of spatially localized classical configurations of the scalar field. We first show that spherically symmetric static Q-balls exist in the range (1−1.21)×Tc
, Tc
being the ...
The Formulations of Classical Mechanics with Foucault’s Pendulum
01 octobre 2020,
- CERDECAM
,
- Article scientifique
Article scientifique
Since the pioneering works of Newton (1643–1727), Mechanics has been constantly reinventing itself: reformulated in particular by Lagrange (1736–1813) then Hamilton (1805–1865), it now offers powerful conceptual and mathematical tools for the exploration of dynamical systems, essentially via the action-angle variables formulation and more generally through the theory of canonical transformations. ...
Meson spectrum in SU(N) gauge theories with quarks in higher representations: A check of Casimir scaling hypothesis
01 juin 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
Gauge theories with gauge group and quarks belonging to arbitrary representations of SU(N)
form a rich landscape of QCD-like theories, whose study can shed new light on the properties of confinement. Four cases are particularly worth of interest: quarks in the fundamental representation, quarks in the 2-indice (anti)symmetric representation and quarks in the adjoint representation. The last three ...
Opinion sur l’efficacité de la prise en charge en kinésithérapie des troubles neuro-musculo- squelettiques par téléréadaptation
18 avril 2020,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
En cette période de confinement liée au coronavirus 2 du syndrome respiratoire aigu sévère (SRAS-CoV-2), l’objectif de cet article est de formuler une opinion sur l'efficacité de la prise en charge kinésithérapique des troubles neuro-musculo-squelettiques (TNMS) par téléréadaptation (TR) ainsi que des guidelines pour les kinésithérapeutes. L’efficacité de la prise en charge en kinésithérapie par TR ...
Timed Up and Go and Six-Minute Walking Tests with Wearable Inertial Sensor: One Step Further for the Prediction of the Risk of Fall in Elderly Nursing Home People
05 juin 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
Assessing the risk of fall in elderly people is a difficult challenge for clinicians. Since falls represent one of the first causes of death in such people, numerous clinical tests have been created and validated over the past 30 years to ascertain the risk of falls. More recently, the developments of low-cost motion capture sensors have facilitated observations of gait differences between fallers ...
DYSKIMOT: An Ultra-Low-Cost Inertial Sensor to Assess Head’s Rotational Kinematics in Adults during the Didren-Laser Test
04 février 2020,
- CERISIC
,
- Article scientifique
Article scientifique
Various noninvasive measurement devices can be used to assess cervical motion. The size, complexity, and cost of gold-standard systems make them not suited to clinical practice, and actually difficult to use outside a dedicated laboratory. Nowadays, ultra-low-cost inertial measurement units are available, but without any packaging or a user-friendly interface. The so-called DYSKIMOT is a home-designed, ...