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Adiabatic Invariant of Center-of-Mass Motion during Walking as a Dynamical Stability Constraint on Stride Interval Variability and Predictability
09 septembre 2022, BUISSERET, Fabien; Dehouck, Victor; Boulanger, Nicolas; HENRY, Guillaume; Piccinin, Florence; White, Olivier; DIERICK, Frédéric,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
Human walking exhibits properties of both stability and variability. On the one
hand, the variability of the interval of time between heel strikes is autocorrelated, i.e., not randomly
organized. On the other hand, walking is highly stereotyped and arguments from general mechanics
suggest that the stability of gait can be assessed according to invariant properties. This study aims
at proposing ...
Adiabatic invariants drive rhythmic human motion in variable gravity
01 décembre 2020, Boulanger, Nicolas; BUISSERET, Fabien; DIERICK, Frédéric; Dehouck, Victor; White, Olivier,
- 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 ...
AsymptomaticGenu Recurvatumreshapes lower limb sagittaljoint and elevation angles during gait at different speeds
17 mars 2021, BUISSERET, Fabien; DIERICK, Frédéric; Lavallée, Pauline; Schreiber, Céline,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
Background:Kinematic characteristics of walking with an asymptomatic genu recurvatum are currently unknown. The objective of this study is to characterize the lower limb sagittal joint and elevation angles during walking in participants with asymptomatic genu recurvatum and compare it with control participants without knee deformation at different speeds.Methods:The spatio-temporal parameters and ...
Benefits of nonlinear analysis indices of walking stride interval in the evaluation of neurodegenerative diseases
12 décembre 2020, DIERICK, Frédéric; Chantraine, Frédéric; Vandevoorde, Charlotte; White, Olivier; BUISSERET, Fabien,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
Indices characterising the long-range temporal structure of walking stride interval (SI) variability such as Hurst exponent (H) and fractal dimension (D) may be used in addition to indices measuring the amount of variability like the coefficient of variation (CV). We assess the added value of the former indices in a clinical neurological context. Our aim is to demonstrate that they provide a clinical ...
Capteur, ce movement est-il déconseillé ?
Autre
Comme tous les systèmes dynamiques, l’Homme est soumis aux lois de la mécanique. Il n’est toutefois pas réductible à une machine comme les autres : il est biologique, psychologique et social !
La douleur, définie comme une expérience sensorielle et émotionnelle désagréable associée à une lésion tissulaire réelle ou non, est une composante de nature complexe. Elle se manifeste notamment dans les ...