Fey, Nicholas P.

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https://hdl.handle.net/10735.1/6613

Nicholas Fey Is an Assistant Professor in the departments of Mechanical Engineering and of Biomechanics. Dr. Fey joined the UT DAllas faculty in 2016 after completing a postdoctoral fellowship that specialized in prothetics and rehabilitation engineering. His research interests include:

  • Neuromuscular Biomechanics
  • Rehabilitation Engineering and Robotics
  • Prothetics and Orthotics

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Recent Submissions

Now showing 1 - 2 of 2
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    Reducing Residual Limb Adipose Tissue via Surgery Alters Foursquare Stepping Mechanics of a Transfemoral Amputee
    (Institute of Electrical and Electronics Engineers Inc.) Levy, Emily T.; Fey, Nicholas P.; Levy, Emily T.; Fey, Nicholas P.
    As prosthetic technology advances, performance improvement is expected for persons with amputation to accomplish their daily activities. However, prosthesis research often overlooks the interface between the residual limb of the user and the prosthetic socket. This case study analyzed the influence of the local mechanical properties of the residual limb on biomechanics during non-steady movements. Before and after a unique surgery removing excess adipose tissue in the residual limb, an obese transfemoral amputee performed foursquare step tests. Post-surgery, the subject moved more fluidly. The increased maneuverability is characterized by increased stepping speed, less sharp direction changes, and more efficient movement path, and these movement qualities were quantified by task completion time, radius of curvature, and distance travelled, respectively. © 2017 IEEE.
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    Effect of Medial Thighplasty on Oxygen and Metabolic Consumption Rates in a Transfemoral Amputee during Sustained Overground Walking Bouts
    (Institute of Electrical and Electronics Engineers Inc.) Kunnappally, Jamie R.; Fey, Nicholas P.; Kunnappally, Jamie R.; Fey, Nicholas P.
    Energy expenditure during daily physical activity is notably higher for amputees, even when using a lower limb prosthetic device, due in part to the constraints surrounding the patient-device interface. This case study tracks changes in minute by minute metabolic data during a six minute walking test pre and post-medial thighplasty in a transfemoral amputee in order to gain a better understanding of how the procedure changes the metabolic rates and energy expenditure involved in overground walking for the amputee by altering the physical relationship between the patient and the prosthetic socket. Post medial-thighplasty, the subject is able to expend less metabolic energy and consume less O₂ which is reflected in the lower cost of transport when either metric is normalized to body weight.

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