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diff --git a/doc/conclusion.tex b/doc/conclusion.tex index 0f2ebba..ced517c 100644 --- a/doc/conclusion.tex +++ b/doc/conclusion.tex @@ -1,23 +1,16 @@ \chapter{Conclusion} \label{ch:conclusion} -\TODO{Conclusion about work done} +Musculoskeletal modeling and simulation is an instrumental tool in understanding muscle function involved in +biped walking. However creating these simulations at an anatomically realistic level is impossible without +proper experimental data. If phenomena shall be studied at a more abstract and fundamental level, the models +and the input need to be abstracted accordingly. -Musculoskeletal modeling has been instrumental in understanding joint torque and muscle function
-during movements based on the physics of the musculoskeletal system. Because generating de novo
-muscle-actuated simulations of movement based on performance criteria is challenging as a result
-of both muscle redundancy and the stiffness of the solution space, particularly for unstable tasks
-such as walking \cite{Ting2012} +The OpenSim software was used to analyze the feasibility of such an abstract-level musculoskeletal simulation +using locomotor primitives patterns. However the focus of usage for OpenSim currently is in areas where +adequate and precise experimental data is available or can easily be generated. -Thus OpenSim with the provided and used muscle-skeleton models is in its current state -not feasible for the simulation of tasks such as those that were subject of this project. - -\begin{itemize} - \item Precise EMG data from an actual subject (no averaged an processed patterns) would be needed in order to achieve realistic behavior in simulation with OpenSim. - \item Focus of OpenSim more on clinical applications where such data is available. - \item A more abstract musculoskeletal model of a human would need to be developed in OpenSim, for such simulations, but is outside of the focus of this project. The OpenSim API would provide a decent foundation for developing such a model from scratch. - \item Ground contact forces would need to be incorporated (and provided by the study the project is based on). - \item Muscles were removed from the model ``arbitrarily'' (because no data is available for them), consequences for behavior of model unclear -\end{itemize} - -More abstract models such as the ones used by Geyer and Herr \cite{Geyer2010}, Marques et al. \cite{Marques2012a, Marques2012} or Wang et al. \cite{Wang2012} might be more suitable.
\ No newline at end of file +More abstract -- bottom-up built -- models such as the ones used by Geyer and Herr \cite{Geyer2010}, Marques et +al. \cite{Marques2012a, Marques2012} or Wang et al. \cite{Wang2012} are more suitable for these kinds of +analyses. Such an abstracted model could possibly also be built inside OpenSim, however the tools it currently +provides to achieve this are limited in their functionality.
\ No newline at end of file |