Journal ArticleDOI
Analysis of Fundamental Human Movement Patterns Through the Use of In-Depth Antagonistic Muscle Models
Jack M. Winters,Lawrence Stark +1 more
TLDR
A nonlinear eighth-order agonist-antagonist muscle model is identified, based on engineering analysis and design criteria, as the desired structure for the broad-range study of a variety of fundamental human joint movements as mentioned in this paper.Abstract:
A nonlinear eighth-order agonist-antagonist muscle model is identified, based on engineering analysis and design criteria, as the desired structure for the broad-range study of a variety of fundamental human joint movements. To complement this structure, systematic protocols, that combine material and geometrical information for each muscle, are developed to obtain the model parameter values needed for the various muscle constitutive equations. The parameters describing the four basic nonlinear relations are easy to visualize, representing the peak curve values and "shape" parameters. Elbow, knee, wrist, and ankle fiexion-extension and eye, wrist, and head rotation are simulated by this same model structure.read more
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Dissertation
Protocole d'identification sous FES et synthèse des séquences de stimulation chez le blessé médullaire
TL;DR: In this paper, the authors propose an approach for the identification of parametres du systeme musculosquelettique sous stimulation electrique fonctionnelle (FES) des muscles.
Modeling human arm movements constrained by robotic systems
TL;DR: The dynamics of constrained movements of the hunlan arm are examined, where the environment dictates the position, while the human maintains a desired contact force.
Journal ArticleDOI
Heavy and Explosive Training Differentially Affect Modeled Cyclic Muscle Power.
Kira K Tanghe,James C. Martin +1 more
TL;DR: It is suggested that changes in time required for activation and deactivation in response to training are highly influential for maximal power across a range of functional frequencies, ultimately altering the ideal training regimen for specific activities.
Dissertation
Industrialisation of a Finite Element Active Human Body Model for Vehicle Crash Simulations
Erik Eliasson,Jacob Wass +1 more
TL;DR: The SAFER Active Human Body Model (AHBM) as discussed by the authors was developed in a PhD project at Chalmers University of Technology to enable studies of pre-crash events, such as emergency braking.
Towards efficient and robust control of bipedal walking : basic models of posture and rhythmic movement
TL;DR: The goal of the conducted research is to find the basic principles of neural control that make human walking both efficient and robust, and to achieve this goal, a bottom-up approach was chosen that started with analyzing the behavior and stability of posture under reflexive control and concluded with anefficient and robust spinal control of bipedal gait.
References
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Journal ArticleDOI
The heat of shortening and the dynamic constants of muscle
TL;DR: In this article, a more accurate and rapid technique for muscle heat measurement was proposed, and some astonishingly simple and accurate relations have been found, which determine the effect of load on speed of shortening, allow the form of the isometric contraction to be predicted, and are the basis of the so-called "visco-elasticity" of skeletal muscle.
Journal ArticleDOI
Data on the distribution of fibre types in thirty-six human muscles: An autopsy study
TL;DR: In this paper, the mean fibre type proportions of each muscle were examined and the spatial distribution of the fibre types was examined in order to determine whether this was random or not, and the number of closed fibers observed in the actual samples was compared statistically with the number expected to occur in a hexagonal lattice model, assuming a random distribution.
Journal ArticleDOI
Dynamic properties of mammalian skeletal muscles.
TL;DR: The author examines the relationship between ATPase activity of myosin and intrinsic speed of shortening, and the effects of nerve cross-union on properties of myOSin.
Journal ArticleDOI
A physiologically based criterion of muscle force prediction in locomotion
TL;DR: The inversely-nonlinear relationship of muscle contraction force and the possible contraction duration is utilized in a method to mathematically predict individual muscle forces and shows substantial agreement with that activity pattern predicted when endurance is used as the optimization criterion.
Journal ArticleDOI
Elasticity of soft tissues in simple elongation
TL;DR: A theoretical framework is presented in which the elastic properties of soft tissues can be described and it is shown that the mathematical formulation works well also in reducing published data on the series element of the heart and striated muscles, and the skin.
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