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
Citations
More filters
Journal ArticleDOI
Effects of changes in segmental values and timing of both torque and torque reversal in simulated throws.
R.M. Herring,Arthur E. Chapman +1 more
TL;DR: An overarm throw in the sagittal plane was simulated using a three-segment model representing the upper arm, forearm and hand plus ball and it was concluded that the use of antagonism leads to beneficial redistributions of angular velocity amongst limb segments.
Journal ArticleDOI
Adaptive neural network control of cyclic movements using functional neuromuscular stimulation
J.-A. Riess,James J. Abbas +1 more
TL;DR: It is indicated that the PG/PS control system may provide an effective mechanism for automatically customizing stimulation patterns for individuals using functional neuromuscular stimulation (FNS) systems.
Journal ArticleDOI
Closed-loop multivariable system identification for the characterization of the dynamic arm compliance using continuous force disturbances: a model study.
TL;DR: A new multivariable closed-loop identification technique for estimating the dynamic compliance of the multijoint human arm during posture maintenance is presented and it is concluded that the identification technique is accurate, even for short observation periods and severe noise.
Proceedings ArticleDOI
The influence of muscle activity on head-neck response during impact
TL;DR: The model response with maximum muscle activation to high severity frontal and lateral impacts agrees well with volunteer responses, whereas a submaximum activation level or a larger reflex delay provides better results for the low severity impacts.
Journal ArticleDOI
Incorporation of muscle architecture into the muscle length-tension relationship.
TL;DR: A mathematical model of the muscle active length-tension relationship has been developed that integrates the functional basis of different muscle arrangements into a mathematical description of the contractile element.
References
More filters
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.
Related Papers (5)
The coordination of arm movements: an experimentally confirmed mathematical model.
Tamar Flash,Neville Hogan +1 more