Unrestricted.2016-11-142011-02-192016-11-141997-08http://hdl.handle.net/2346/22020Three modeling issues involved in Hill-based models for skeletel muscle contraction are addressed. These include the role of muscle mass, the role of viscosity. and the effect of modulating series elastic stiffness by activation. Four models are derived in a simplified setting. Xumerical simulations are conducted and the implications of the modeling issues are investigated.application/pdfengMuscle contraction -- Mathematical modelsAnatomy -- Mathematical modelsSkeleton -- Movements -- Mathematical modelsBones -- Anatomy -- Mathematical modelsThesis