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Full-Text Articles in Engineering

Formulation To Predict Lower Limb Muscle Forces During Gait, Gil Serrancolí, Jonathan P. Walter, Allison Kinney, A. Barjau, Benjamin J. Fregly, Josep M. Font-Llagunes Oct 2013

Formulation To Predict Lower Limb Muscle Forces During Gait, Gil Serrancolí, Jonathan P. Walter, Allison Kinney, A. Barjau, Benjamin J. Fregly, Josep M. Font-Llagunes

Mechanical and Aerospace Engineering Faculty Publications

The human body has more muscles than Degrees of Freedom (DoF), and that leads to indeterminacy in the muscle force calculation. This study proposes the formulation of an optimization problem to estimate the lower-limb muscle forces during a gait cycle of a patient wearing an instrumented knee prosthesis. The originality of that formulation consists of simulating muscle excitations in a physiological way while muscle parameters are calibrated. Two approaches have been considered. In Approach A, measured contact forces are applied to the model and all inverse dynamics loads are matched in order to get a physiological calibration of muscle parameters. …


Optimization Problem Formulation For Predicting Knee Muscle And Contact Forces During Gait, Gil Serrancolí, Jonathan P. Walter, Allison Kinney, Benjamin J. Fregly, Josep M. Font-Llagunes Aug 2013

Optimization Problem Formulation For Predicting Knee Muscle And Contact Forces During Gait, Gil Serrancolí, Jonathan P. Walter, Allison Kinney, Benjamin J. Fregly, Josep M. Font-Llagunes

Mechanical and Aerospace Engineering Faculty Publications

The human body has more muscles than degrees of freedom (DOF), which leads to indeterminacy in the muscle force calculation. In this study, an optimization problem to estimate the lower-limb muscle forces during a gait cycle of a patient wearing an instrumented knee prosthesis is formulated. It consists of simulating muscle excitations in a physiological way while muscle parameters are calibrated.


A Pilot Study Of The Effect Of An Acute Vestibular Therapy On Postural Stability And Gaze Patterns Of Children With Autism Spectrum Disorder Apr 2013

A Pilot Study Of The Effect Of An Acute Vestibular Therapy On Postural Stability And Gaze Patterns Of Children With Autism Spectrum Disorder

Stander Symposium Projects

Children with Autism Spectrum Disorder (ASD) struggle with sensory regulation, resulting in abnormal gaze patterns and decreased postural stability. Sensory integration (SI) therapy is a common therapy used to help children with ASD with these issues, however, there is insufficient quantitative research concerning its effectiveness. A pilot study is currently being conducted to quantify the acute effects of a SI vestibular treatment on postural stability and gaze patterns. Both children diagnosed with ASDs and typically developing children are participating in the study, and test methods include quiet standing posturography and analysis of socially relevant visual fixations recorded by a mobile …


Understanding Chinese Students In A Global Context Apr 2013

Understanding Chinese Students In A Global Context

Stander Symposium Projects

Nowadays, more and more Chinese students choose to study in American higher education institutions. According to "Open Doors," the number of Chinese students enrolled at American colleges jumped 23% between 2010 and 2011, to 194,029, which is 25% of the total number of international students enrolled at American colleges. Along with that increase various challenges arise. The need to address global-centered settings becomes more and more urgent in American higher education. American universities set up curriculum and co-curriculum based on the assumption that every student has some certain knowledge or skills, which are usually lacking in the case of international …