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Dissertations / Theses on the topic 'Biomechanics of the ankle'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Mitchell, Andrew Charles Stephen. "The biomechanics of functional ankle instability." Thesis, University of Chichester, 2005. http://eprints.chi.ac.uk/842/.

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An epidemiological study into the incidence of ankle sprain in elite and non-elite athletes was carried out to collect data on the incidence of sports injuries focusing specifically on ankle sprains in elite and non-elite athletes. Furthermore, to develop and validate a questionnaire to be used to collect data on the residual symptoms associated with a history of ankle sprain and functional instability. Ankle sprains accounted for 16% of all injuries and symptoms of functional instability were reported by 95% of athletes that reported sustaining an ankle sprain during the study. The questionna

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2

Elliott, Bradley Jay. "Optimization of WSU Total Ankle Replacement Systems." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1341333609.

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3

Flick, Kevin Charles. "Biomechanics and dynamics of turning /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/5221.

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4

Rix, Jessica. "Effects of Chronic Ankle Instability and Ankle Bracing on Plantar Pressure during a Jump Landing Task." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1305124623.

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5

Dewan, Curt. "Biomechanics of the foot and ankle during ice hockey skating." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81326.

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This study describes the biomechanics of the foot and ankle during the transitional and steady state skating strides using kinematic, kinetic, and myoelectric measures. A data set for five collegiate hockey players was completed (mean +/- SD: age = 21.8 +/- 1.9 years, height = 1.81 +/- 0.05 m, mass = 83.3 +/- 8.0 kg). Three acceleration strides and a constant velocity stride were examined on ice. An electrogoniometer at the ankle was used to measure angular displacement and velocity values. Myoelectric activation patterns were measured at the vastus medialis, tibialis anterior, peroneus

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6

Kuska, Elijah. "Ankle and Midtarsal Joint Kinematics During Rearfoot and Non-rearfoot Strike Walking." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1564222776215818.

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7

Hamilton, Stephanie E. "The influence of passive ankle joint power on balance recovery." Thesis, Michigan Technological University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3724620.

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<p> Over one–third of Americans over the age of 65 fall each year, costing more than $19 billion in health care costs in 2000. Many adults 65+ who have not experienced a fall still fear falling, and fear can decrease quality of life and increase the likelihood of falls. Several factors such as muscle strength, power, stiffness and tendon properties change in the human body with age affecting balance, which has been tagged as a fall risk predictor. Additionally, balance recovery strategies also differ between young and older adults, with young adults primarily utilizing their ankle joint

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8

Fournier, Brandon. "Model and Characterization of a Passive Biomimetic Ankle for Lower Extremity Powered Exoskeleton." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37373.

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Lower extremity powered exoskeletons (LEPE) allow people with spinal cord injury (SCI) to perform activities of daily living, such as standing, walking, or stair and ramp ascent/descent. However, current LEPE walk slowly and require extensive use of forearm crutches to maintain user stability. Consequently, this limits LEPE time of use and overall system performance. While the biological ankle is known to be critical for energy efficiency, speed, and stability in able-bodied walking, current LEPE do not include biomimetic ankle designs and thus limit device performance. The objective of this

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9

Tatarski, Rachel Leigh. "A Novel Approach to the Diagnosis and Prognosis of Syndesmotic Ankle Sprain Syndrome." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu159525742962944.

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10

Wiersdorf, Jason. "Preliminary design approach for prosthetic ankle joints using compliant mechanisms /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1138.pdf.

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11

Dahrouj, Ahmad Sami. "The development of a novel system to assess the effect of sudden foot and ankle inversion/supination on the musculoskeletal system." Thesis, University of Dundee, 2011. https://discovery.dundee.ac.uk/en/studentTheses/dffc0272-143a-41cc-98d2-a00160606e65.

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Ankle sprains are one of the most common type of sports injury. They occur most frequently when the foot is in a supine or inverted position. Recovery from an ankle sprain can take from one and up to 26 weeks depending on the severity of the injury. During that period the individual will be unable to participate in any meaningful sports activity and as such it is important to be able to prevent the occurrence of such injuries. Prevention of ankle sprain injuries would require a better understanding of the risk factors of this injury. Several studies attempted to assess such risk actors by indu

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12

Tian, Feng. "A superelastic variable stiffness knee actuator for a knee-ankle-foot orthosis." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1449578210.

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13

Jenkyn, Thomas Richard. "Biomechanics of the ankle joint complex using a muscle model assisted optimisation model." Thesis, University of Strathclyde, 2001. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21444.

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A seven segment model of the right leg and foot was developed with segments: thigh, lower leg, talus, hindfoot, midfoot and lateral and medial forefoot. Three-dimensional mapping of internal structures was made from CT scans and anatomical photographs (Visible Human Project). Twelve healthy subjects performed level walking and medial walking turns at slow, preferred and fast speed. Equilibrium about the two joints of the ankle complex (ankle and subtalar), was solved using Muscle Model Assisted Optimisation (MMAO). A three component, Hill-type muscle model determined tensions in eight muscles

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14

Zamanian, Hashem. "Toward Creating Normal Ankle Joint Behavior for Drop Foot Patients Using an Ankle Foot Orthosis (AFO) with Superplastic NiTi Springs." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501856335099577.

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15

Shinohara, Junji. "Effects of Five-Toed Socks with Grippers and Ankle Bracing on Dynamic Postural Control and Subjective Feelings During a Jump-Landing Task in Individuals with Chronic Ankle Instability." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1323353599.

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16

Fox, Jonathan. "Knee and Ankle Biomechanics during Squatting with Heels On and Off of the Ground, With and Without Weight Shifting." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1461925451.

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17

Gundapaneni, Dinesh. "Computational Simulations of Biomechanical Kinematics in WSU Total Ankle Replacement Systems." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright151559184243815.

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18

Rao, Smita Rajshekhar. "Foot and ankle mechanics in individuals with diabetes mellitus and neuropathy." Diss., University of Iowa, 2006. https://ir.uiowa.edu/etd/90.

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With over 7% (20 million) people in the United States affected by diabetes mellitus (DM), DM has emerged as a significant health problem. The hallmark of DM is multi-system involvement and the lower limbs are frequently involved in the form of foot ulcers. Inability to heal foot ulcers and maintain healing contributes to the high rate of amputation seen in individuals with DM. The development of foot ulcers has been strongly linked with mechanical stress. Changes in muscle characteristics and segmental foot mobility have been postulated to limit forward progress

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19

Abdollahi, Sofla Mohammadhassan. "Identification, Simulation and Control of an Ankle Foot Orthosis." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1341502439.

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20

Wan, Lu Ph D. Massachusetts Institute of Technology. "In-vivo cartilage contact biomechanics : an experimental and computational investigation of human ankle joint complex." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45439.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.<br>Includes bibliographical references (p. 236-259).<br>Osteoarthritis is affecting over 20 million people in the United States, the etiology of which is still unclear. As abnormal stress is believed to be one of the factors causing the degeneration of cartilage, the combined dual-orthogonal fluoroscopic and magnetic resonance imaging technique was applied to investigate the in-vivo biomechanics of human ankle joint complex in this work. The in-vivo kinematic data showed that the talocrural joint contributes more i

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21

Terada, Masafumi. "An Examination of Sensorimotor and Mechanical Factors Contributing to Posttraumatic Ankle Instability." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1396601011.

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22

Twohy, Kyra Elizabeth. "Impact of an Ankle Foot Orthosis on Reactive Stepping in Healthy Young Adults Using a Lean-and-Release Paradigm." University of Dayton / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1597064801653152.

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23

Kwanyuang, Atichart. "Biomechanical evaluation of total ankle replacements." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/16843/.

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Globally, 1% of the population is affected by arthritis of the foot and ankle. Total ankle replacement (TAR) was developed as an alternative to fusion to treat end-stage arthritis, however failure rates are relatively high and are often related to bony damage. The purpose of this PhD was to develop a finite element (FE) model of a TAR to examine the risk of bone failure, and how this is affected by component alignment. An experimental model of a TAR implanted into synthetic bone was first created as a means to validate an initial FE model under known conditions. Location and size of the plasti

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24

Dicus, Jeremy Raymond. "Kinetic and Kinematic Differences in Expected and Unexpected Drop Landing Ankle Inversion." Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1163530597.

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25

Yniguez, Stephanie. "The effects of fatigue on plantar pressure distribution in subjects with chronic ankle instability after jump-landing task." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1305050264.

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26

Struckovs, Vasilijs. "Biomechanical adaptations involved in ramp descent: Impact of microprocessor-controlled ankle-foot prothesis. Kinetic and kinematic responses to using microprocessor-controlled ankle-foot prosthesis in unilateral trans-tibial amputees during ramp descent." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/17214.

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Ramp descent is a demanding task for trans-tibial amputees, due to the difficulty in controlling body weight progression over the prosthetic foot. A deeper understanding of the impact of foot function on ramp descent biomechanics is required to make recommendations for rehabilitation programs and prosthetic developments for lower-limb amputees. The thesis aim was to determine the biomechanical adaptations made by active unilateral trans-tibial amputees (TT) using a microprocessor-controlled ankle-foot prosthesis in active (MC-AF) compared to non-active mode (nonMC-AF) or elastically articulate

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27

Gautrey, Charlotte. "The biomechanics of the dynamic defence mechanism." Thesis, University of Hertfordshire, 2013. http://hdl.handle.net/2299/13905.

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Context: It has been suggested that muscle fatigue can lead to injury, however, research investigating this phenomenon in functional ankle instability (FAI) subjects is lacking. Aim: The purpose of this thesis was to research postural sway and muscular latency in FAI subjects and healthy controls, both before and immediately after localised and globalised fatigue protocols. Subjects: All subjects used in this project were males, between the ages of 18 and 25 years, and participated in regular (>2 x week) aerobic exercise. Subjects were categorised into healthy subjects, or subjects with a h

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28

Clayton, Lindsay E. "The Effects of Fatigue on Lower Extremity Kinetics and Kinematics in Subjects with Known Ankle Instability." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4056.

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The goal of this study was to evaluate biomechanical differences between healthy subjects and those with ankle instability during the gradual onset of lower extremity fatigue from a landing activity. An understanding of these differences is needed in order to prevent future injury to or further debilitation in individuals with ankle instability. A functional fatiguing activity was designed to focus fatigue on the quadriceps muscles, as those are the muscles most frequently fatigued during sport. Measures were taken throughout the progression of fatigue with a force plate and a motion trac

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29

Chande, Ruchi D. "IMPROVED CAPABILITY OF A COMPUTATIONAL FOOT/ANKLE MODEL USING ARTIFICIAL NEURAL NETWORKS." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4647.

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Computational joint models provide insight into the biomechanical function of human joints. Through both deformable and rigid body modeling, the structure-function relationship governing joint behavior is better understood, and subsequently, knowledge regarding normal, diseased, and/or injured function is garnered. Given the utility of these computational models, it is imperative to supply them with appropriate inputs such that model function is representative of true joint function. In these models, Magnetic Resonance Imaging (MRI) or Computerized Tomography (CT) scans and literature infor

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30

Forghany, Saeed. "The biomechanics of foot and ankle problems after stroke and the effects of orthotics on such problems." Thesis, University of Salford, 2009. http://usir.salford.ac.uk/26680/.

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Stroke is the leading cause of adult disability and -50% of people with stroke suffer foot deformities which influence walking. The aim of this study was to investigate foot and ankle biomechanics, posture, multi-segment kinematics and plantar pressure in people with stroke and explore the possible causes and functional consequences of any abnormalities. A cross-sectional survey of the static foot posture in 72 people with stroke showed that one-third had abnormal and asymmetrical foot posture with almost equal numbers having pronated and supinated affected foot associated with limited walking

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31

Cami, Sonila. "Effects of Body Mass Index and Walking Speed in Gait Biomechanics of Young Adult Males." Scholarly Repository, 2007. http://scholarlyrepository.miami.edu/oa_theses/86.

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Gait biomechanics of forty male subjects was evaluated at normal and fast walking speeds. The forty subjects composed four groups based on their body mass index, with ten subjects in each of the groups: underweight, normal weight, overweight and obese. To our knowledge this is the first comprehensive 3-dimensional kinetic and kinematic gait analysis of all four groups based on body mass index. The obese subjects walked with significantly slower gait speed by taking shorter steps and strides, while having significantly higher step widths and longer gait cycle times than the other subjects. The

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32

Mosher, Marseille A. "Landing Error Scoring System Evaluation of Anterior Cruciate Ligament Injury Risk with Prophylactic Ankle Support." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1428365633.

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33

Gatt, Alfred. "Biomechanical assessment of passive ankle joint complex dorsiflexion." Thesis, Staffordshire University, 2012. http://eprints.staffs.ac.uk/1991/.

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The measurement of ankle joint dorsiflexion is an important component of the clinical examination of the foot and is also an outcome measure often employed in research. Diagnosis of ankle equinus or limited ankle dorsiflexion is based solely on this measurement. Although a great majority of research papers in this field utilise normal clinical goniometers for obtaining the maximum ankle dorsiflexion angle (MADA) and important clinical decisions are based on these findings, there is overwhelming evidence that this method is highly unreliable. Thus this thesis aimed to investigate alternative me

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34

Mkandawire, Chimbaugona. "The relationship between viscoelastic relaxation and ligament morphometry /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/8052.

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35

Fong, Chun-Man Blackburn J. Troy. "The influence of ankle joint stiffness and range of motion on lower extremity biomechanics during a jump landing task." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2547.

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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2009.<br>Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Master of Arts in the Department of Exercise and Sport Science Athletic Training. " Discipline: Exercise and Sports Science; Department/School: Exercise and Sport Science.

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36

McCleve, John Miram IV. "Effects of the Fibular Repositioning Taping on Lower Extremity Biomechanics during Gait in Active Adults with Chronic Ankle Instability." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1493417599761808.

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37

Rice, Hannah. "Potential mechanisms for the occurrence of tibial stress fractures, metatarsal stress fractures and ankle inversion injuries in Royal Marine recruits." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/16947.

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Lower limb injury incidence is high amongst Royal Marine recruits. Tibial and metatarsal stress fractures are particularly problematic. The regular load carriage activities undertaken throughout training have been implicated, but mechanisms by which these injuries develop are poorly understood. The aim of this thesis was to improve understanding of the mechanisms by which the most prevalent Royal Marine training injuries develop. The first experimental chapter was a prospective study of 1065 Royal Marine recruits. Anthropometric and dynamic biomechanical variables (during barefoot running at 3

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38

Hoffman, Elizabeth Kate. "The Effect of Two Different Ankle Foot Orthoses on Reactive Stepping in Young, Healthy Adults." University of Dayton / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1628168801921651.

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39

Tessier, Isabelle Sylvie. "Development of a Prototype Active Ankle-Foot Orthotic Design Tool Using Novel Integrated Algorithms." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1588163374532685.

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40

Delorme, Sebastien. "Biomechanical analysis of ankle kinematics and ligament strain in snowboarding." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/29096.

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Because snowboarders are known to injure their ankles more often than alpine skiers, it has been postulated that stiffer snowboard boots would provide better protection to the ankle ligaments than current soft boots do. To test this hypothesis, we have measured the kinematics of the feet and lower legs of five snowboarders riding down a course of 10 gates on a ski hill using an electromagnetic motion tracking system. Results were obtained with each snowboarder wearing soft boots and stiffer step-in boots. The measurements were expressed in anatomically relevant rotations of the ankle joint com

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41

Teruya, Thiago Toshi. "Análise eletromiográfica da instabilidade crônica de tornozelo." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/39/39135/tde-01062017-092929/.

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A entorse de tornozelo pode ocorrer pela amplitude exagerada de inversão e flexão plantar. Lacuna importante no controle postural é a ação do ajuste postural antecipatório (APA) e compensatório (APC) para estabilizar a articulação do tornozelo. O reflexo de estiramento (M1) e as reações pré-programadas (M2 e M3) foram pouco exploradas em pessoas com instabilidade crônica de tornozelo (CAI). A co-ativação e inibição são fenômenos modulados em nível medular por neurônios excitatórios e inibitórios, mas as informações sobre esses fenômenos atuam na CAI são escassas. A fadiga muscular afeta negati

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42

Schlafly, Millicent. "Design and Testing of a Passive Prosthetic Ankle Foot Optimized to Mimic an Able-Bodied Gait." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7710.

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Currently there are nearly 2 million people living with limb loss in the United States [1]. Many of these individuals are either transtibial (below knee) or transfemoral (above knee) amputees and require an ankle-foot prosthesis for basic mobility. While there are an abundance of options available for individuals who require an ankle-foot prosthesis, these options fail to mimic an intact ankle when it comes to key evaluation criteria such as range of motion, push-off force, and roll over shape. The roll over shape is created by plotting the center of pressure during a step in a shank-based coo

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43

Kwon, Yongung. "EFFECTS OF CHRONIC ANKLE INSTABILITY AND REST INTERVALS ON PERFORMANCE, NEUROMUSCULAR FUNCTION, POSTURAL CONTROL, AND BIOMECHANICS DURING THE STAR EXCURSION BALANCE TEST." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4054.

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Introduction: It has been proposed that inadequate rest intervals may contribute to decreased performance of activities. However, previous research has not investigated the effect of rest interval on performance of the Star Excursion Balance Test (SEBT) in individuals with and without chronic ankle instability. Objective: To determine whether rest interval affects performance of the SEBT associated with chronic ankle instability (CAI) and whether neuromuscular function, postural control or biomechanics can be associated factors which may help discriminate between healthy individuals and those

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44

Noble, Lawrence Dean Jr. "DEVELOPMENT OF A MUSCLE FORCE OPTIMIZATION ALGORITHM TO IMPROVE CENTER OF PRESSURE DURING SIMULATED WALKING." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1301931722.

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45

Botha, Jan. "The development of a device for the investigation of dorsiflexion range of the ankle with a capacity to measure pathology, recovery and pharmacological benefit." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2086.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2005.<br>Various ways exist whereby balance abilities of the individual can be assessed. However, most of these are subjective methods. This thesis strives to demonstrate the effectiveness of a new device, the Dorsiflexometer that can be used to objectively assess one’s balance abilities. The Dorsiflexometer was constructed and mathematically modelled using appropriate simplifying assumptions. After its construction, the Dorsiflexometer was tested using two experimental set-ups to obtain raw data. Both

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46

Smith, Brian A. "Computational Modeling to Assess Surgical Procedures for the Treatment of Adult Acquired Flatfoot Deformity." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4019.

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Several surgically corrective procedures are considered to treat Adult Acquired Flatfoot Deformity (AAFD) patients, relieve pain, and restore function. Procedure selection is based on best practices and surgeon preference. Recent research created patient specific models of Adult Acquired Flatfoot Deformity (AAFD) to explore their predictive capabilities and examine effectiveness of the surgical procedure used to treat the deformity. The models’ behavior was governed solely by patient bodyweight, soft tissue constraints, and joint contact without the assumption of idealized joints. The current

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47

McInnes, Kurtis Anthony. "Biomechanical comparison of two total ankle replacement designs : micromotion and kinematic patterns." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42747.

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Introduction: Arthritis is a degenerative disease that causes irreversible damage to a joint’s articular cartilage. Despite having high failure rates in early total ankle arthroplasty (TAA) models, recent improvements have increased the success of this procedure, providing end-stage ankle arthritis patients a viable alternative to fusion with better functional outcomes. Currently, the most prevalent cause of failure is aseptic loosening, which is believed to be affected by motion at the bone-implant interface. The objective of this study was to compare micromotion and kinematic patterns of two

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48

De, Asha Alan R. "Biomechanical adaptations of lower-limb amputee-gait: Effects of the echelon hydraulically damped foot. Segmental kinetic and kinematic responses to hydraulically damped prosthetic ankle-foot components in unilateral, trans-tibial amputees." Thesis, University of Bradford, 2013. http://hdl.handle.net/10454/7271.

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The aim of this thesis was to determine the biomechanical adaptations made by active unilateral trans-tibial amputees when they used a prosthesis incorporating a hydraulically-damped, articulating ankle-foot device compared to non-hydraulically attached devices. Kinematic and kinetic data were recorded while participants ambulated over a flat and level surface at their customary walking speeds and at speeds they perceived to be faster and slower using the hydraulic device and their habitual foot. Use of the hydraulic device resulted in increases in self-selected walking speeds with a simultan

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49

Lindemann, Madeline. "The Design and Development of a 3D Printed Hindlimb Stabilization Apparatus for the Measurement of Stimulation-Evoked Ankle Torque in the Rat." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1623426552144434.

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50

Wiersdorf, Jason Matthew. "Preliminary Design Approach for Prosthetic Ankle Joints Using Compliant Mechanisms." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/721.

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The objective of this thesis is to develop design approaches and models for prosthetic ankle joints using kinematic models of the human ankle and compliant mechanisms technology. Compliant mechanisms offer several potential design advantages over traditional rigid-body designs including high reliability and low cost. These design advantages are ideal for use in prosthetics. Some prosthetic ankle/foot systems currently on the market have multiple degrees of freedom yet are expensive. Additionally, even though these systems have multiple degrees of freedom, none of them are designed after the ac

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