The University of Texas at Austin
College of Engineering


Intermuscular coordination of hemiparetic walking

Funding Agency: National Institutes of Health (NICHD)
Project Description:The goal of this project is to investigate how impaired muscle force production limits walking speed in hemiparetic patients, with the goal to design effective rehabilitation interventions.
Collaborators: Dr. Steve Kautz at the Medical University of South Carolina; Dr. Felix Zajac at Stanford University.

Optimization of dynamic ankle-foot orthosis design

Funding Agency: Center for Rehabilitation Sciences Research (CRSR)

Project Description: The overall goal of this project is to develop a scientific basis for prescribing and manufacturing ankle-foot orthoses (AFOs) with an appropriate stiffness level for individual subjects. Additive manufacturing techniques (SLS) are used to fabricate AFOs with varying design characteristics that are tested over a wide range of mobility tasks.
Collaborators: Dr. Jason Wilken at the Military Performance Lab, Center for the Intrepid, Fort Sam Houston, TX

Wheelchair propulsion optimization

Project Description: The goal of this project is to using computer modeling and simulation techniques to develop a scientific basis for optimizing wheelchair propulsion technique and seat position to reduce demand placed on the wheelchair user.
Collaborators: Dr. Jill McNitt-Gray at the University of Southern California; Dr. Phil Requejo and Dr. Sara Mulroy at Rancho Los Amigos National Rehabilitation Center.

Effect of prosthetic foot-ankle stiffness on amputee function

Funding Agency:The Veterans Affairs (VA)
Project Description: The overall goal of this project is to identify causal relationships between prosthetic foot-ankle stiffness and amputee gait mechanics and develop a predictive prescription tool to improve rehabilitation outcomes. This project uses additive manufacturing techniques (SLS) to fabricate patient-specific prosthetic feet with a wide range of mechanical properties.
Collaborators: Dr. Glenn Klute at the VA RR&D Center for Limb Loss Prevention & Prosthetic Engineering.


Mechanically-induced stochastic resonance to improve amputee gait

Funding Agency: The Veterans Affairs (VA)
Project Description:The purpose of this research is to determine if mechanically-induced stochastic resonance, applied to the residual limb of a diabetic lower limb amputee or the plantar surface of their intact foot, can enhance peripheral sensation sufficiently to result in improved postural stability and gait.
Collaborators: Dr. Glenn Klute at the VA RR&D Center for Limb Loss Prevention & Prosthetic Engineering; Gordon Bosker, Gail Walden and Jim Schroeder at the Andrew J. Gitter Research Center South Texas VA Medical Center.

The influence of ankle-foot orthoses on post-stroke hemiparetic walking

Funding Agency: The American Heart Association (AHA)

Project Description: The goal of this project is to investigate the influence of ankle-foot othoses (AFOs) on gait performance in healthy and post-stroke hemiparetic subjects over a range of walking conditions.
Collaborators: Dr. Steve Kautz at the Medical University of South Carolina.