Orthotics and Prosthetics Commons^™

Prosthetic Attention In Upper Limb Loss: User Experiences, Clinical Perceptions, And Developing Candidate Items, Tanu Bhargava

Theses and Dissertations

The human hand is a powerful tool essential for performing a range of tasks from simple to complex, and it plays a crucial role in social interactions and environmental engagement. Upper limb (UL) loss disrupts these functions and significantly impacts daily life. Prosthetic devices can partially restore these abilities and improve quality of life, but they lack the intuitive control and sensory feedback of natural hands. Consequently, operating a UL prosthesis requires substantial attentional demands, a factor that potentially contributes to high rates of device dissatisfaction and disuse. For UL prosthesis users, managing attentional resources is critical to efficiently controlling …

Development Of A Novel Predictive Model And Prosthetic System To Assess Dynamic Leg Length Based Gait Biomechanics In Lower Limb Prosthesis Users, Therese Parr

All Dissertations

Individuals with transfemoral amputation often rely on a prosthesis as a replacement for their missing extremity’s structure and function. Lower-limb prosthetic devices are developed with the goal of restoring biomechanical abilities and mitigating secondary health risks for users. However, biomechanical deficits for unilateral transfemoral prosthesis users are very common and are induced by both leg length discrepancy (LLD) and current prosthetic design shortcomings. Lack of push off power as well as difficulty shortening the leg for toe clearance can result in gait compensations that lead to asymmetric limb loading, increased muscle activity, and an increased incidence of falling due to …

Collapsible Prosthetic Shower Leg, Amanuel Matias, Mahsa Ebrahim

Honors Thesis

The purpose of this capstone project is to build a collapsible prosthetic shower leg that can provide a transtibial amputee with reliable support while showering. Phil Tamoush, an 83-year old transtibial amputee, was the inspiration for this work. Phil’s constant travel for his arbitration work leaves him without the option to bring along his usual shower leg due to the additional space it takes up in his travel bag. There are currently no commercially available prosthetic shower legs that can collapse into a condensed unit, so this capstone project explores an unexplored field for which there is a significant need. …

The Effect Of Coronal Prosthetic Alignment Changes On Socket Reaction Moments, Spatiotemporal Parameters, And Perception Of Alignment During Gait In Individuals With Transtibial Amputation, Hiroshi Hashimoto, Toshiki Kobayashi, Fan Gao, Masataka Kataoka, Kuniharu Okuda

Kinesiology and Health Promotion Faculty Publications

Introduction: The alignment of a prosthesis is clinically determined based on observations by clinicians and the subjective perception of amputees during gait. However, this process has been reported to be unreliable. Socket reaction moment has been reported to be significantly impacted by alignment changes, but the impact of these alignment changes on other gait parameters is unclear. The aim of this study was to investigate the effects of coronal alignment changes of a transtibial prosthesis on socket reaction moment, spatiotemporal parameters, and perceptions of alignment during gait in amputees.

Methods: Nine individuals with transtibial amputation participated in this study. Socket …

The New Hero Of Upper Limb Prosthetics, Erin Miskell

Biology: Student Scholarship & Creative Works

This paper looks at the history and future of upper extremity prosthesis. The goal of this paper was to compare three different up and coming technological advances in the field of prosthesis that may help the devices to become more life-like for their users. Of the three different approaches looked at, the Open Bionics Hero Arm is praised as being the best option.

Grip Force Control Using Prosthetic And Anatomical Limbs, Michael S. Trujillo, Daniel M. Russell, David I. Anderson, Marilyn Mitchell

Rehabilitation Sciences Faculty Publications

Introduction

Skillful object manipulation in various activities of daily living requires accurate and economical modulation of grip force, yet experimental studies investigating grip force using a prosthesis are lacking. The purpose of this study was to compare grip force output between two types of upper-limb prosthetic prehensors. We hypothesized a relationship between grip force output and the muscular tension needed to control the prehensor.

Materials and Methods

Ten able-bodied participants attempted to produce a static target grip force using a voluntary opening and voluntary closing prosthetic simulator and their anatomical hand. The target forces were 0.49 N, 4 N, and …

Biomechanical Analysis Of Gait Kinetics Resulting From Use Of A Vacuum Socket On A Transtibial Prosthesis, Maria De Lourdes Ramos Gonzalez

Honors College Theses

The technology and design of lower limb prosthetics have evolved greatly since their introduction. The current study proposed to compare the effects of a conventional pin socket attachment and a vacuum socket attachment for a transtibial amputee. Whereas traditional measurements of gait utilize force plates and camera systems, this study made use of a small tri-axial load cell located at the base of the socket to measure the forces and moments exerted during a regular gait cycle. The hypothesis tested stated that a vacuum pump socket attachment, when compared to a non-vacuum (pin) socket, will have a significant effect on …