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
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Development of Digital Control Systems for Wearable Mechatronic Devices: Applications in Musculoskeletal Rehabilitation of the Upper Limb
TL;DR: The Wearable Mechatronics-Enabled Control Software framework was developed to enable the implementation and comparison of different control software solutions presented in the literature and reduces the amount of restructuring and modification required to complete these development tasks.
Dissertation
Development and evaluation of a new method to objectively measure spasticity
TL;DR: The overall clinical implications and conclusions from this thesis are that this new method to measure spasticity is valid and is able to distinguish betweenSpasticity and other components of passive muscle resistance in the wrist and finger muscles.
Journal ArticleDOI
Spatial frames for motor control would be commensurate with spatial frames for vision and proprioception, but what about control of energy flows?
TL;DR: The model identifies a spatial coordinate frame within which the sensorimotor apparatus produces movement that addresses the performance of spatial tasks, but seems to have little to say about movements involving energy expenditure as the principle component of the task.
Journal ArticleDOI
Analysis of the role of proprioceptive information during arm movements using a model of the human arm.
TL;DR: E evaluation of the roles of different afferent signals shows that sensed muscle forces are important to achieve accurate control of fast movements, and velocity feedback is not essential, but for small look delays an increased performance is attained by feedback of velocity.
Journal ArticleDOI
Reciprocal and coactivation commands are not sufficient to describe muscle activation patterns
C.C.A.M. Gielen,B.M. van Bolhuis +1 more
TL;DR: The results indicate that joint stiffness is not uniquely determined and that it may be different for isometric contractions and movements.
References
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
Elasticity of soft tissues in simple elongation
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