Wrist dynamics in the posteroanterior plane: model and experiments

Document Type



Master of Science (MS)


Mechanical Engineering

First Advisor's Name

Diana M. Rincon

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Sabri Tosunoglu

Third Advisor's Name

Richard T. Schoephoerster

Date of Defense



The purpose of this study was to create and validate mathematical model of the human wrist. The validated model can be useful in the quantification of dynamic effects on wrist injuries.

A model of the wrist based on elements modeling soft tissue as viscoelastic materials was generated. An algorithm based on the fourth order Runge-Kutta method extended to multiple coupled ordinary differential equations written in Matlab® was used to solve the system of coupled ordinary differential equations defining the model. The model was first validated based on results found in the literature for static models. A simple experiment was then developed and used to validate experimentally the results obtained from the model.

Force transmission increased significantly when dynamic loads were analyzed. The results of this study exposed the limitation for static models to characterize the wrist behavior.



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