Free Papers

Time Program Code Thursday, March 2
9:10 AM - 10:40 AM F1 Free Papers: Upper Limb Prosthetics  (F1)
Falls in Persons with Upper-Limb Loss
Matthew J. Major, PhD
Although persons with upper-limb loss do not generally suffer from low balance confidence, they report a relatively high prevalence of falls.
  F2 Free Papers: Upper Limb Prosthetics  (F2)
Symptom Severity and Prosthesis Use: Exploring the Pain Experience Using the Disabilities of the Arm, Shoulder, and Hand (DASH)
Bertrand Frossard
The pain experience of individuals with upper-limb deficiencies has been identified as an important factor in relation to prosthesis use and as an outcome that can change as a result of upper-limb prosthetic use. We will discuss if the use of an upper-limb prosthesis has an impact on reported pain levels and if it varies across levels of absence or origin of limb absence.
  F3 Free Papers: Upper Limb Prosthetics  (F3)
Case Comparison of Electric Digits and 3-D-Printed Body-Powered Hand Prostheses
Kerstin Baun, MPH, OTR/L
This study examines the differences in function between 3-D-printed body-powered hands and electric digit system prostheses. A case study comparison utilizing standardized functional testing as well as subjective evaluation was completed.
  F4 Free Papers: Upper Limb Prosthetics  (F4)
Using Meaningful Data to Optimize the Quality of Life for Persons with Partial-Hand Amputation
Dan Conyers, CPO, FAAOP
This study evaluated the odds of positive screens on various measure of psychological wellness (e.g., PTSD, depression) between subgroups of patients with upper-limb amputation, indicating the need to objectively evaluate patient needs and inform patient-specific care recommendations.
  F5 Free Papers: Upper Limb Prosthetics  (F5)
Contact Reflex Improves Fragile Grasping While Blindfolded
Gary Berke, MS, CP, FAAOP
This study compares the effect of visual impairment on fragile item grasp with a myoelectric prosthesis using contact detection compared to a standard myoelectric prosthesis and to able-bodied subjects.
  F6 Free Papers: Upper Limb Prosthetics  (F6)
Using Meaningful Data to Optimize the Quality of Life for Persons with Upper-Limb Amputations
John M. Miguelez, CPO, FAAOP(D)
This study aims to identify and assess the influence of amputation level and perceived quality of life with the potential to impact prosthetic rehabilitation. Results will enhance our understanding of factors influencing prosthesis wear time and may guide successful upper-limb prosthetic rehabilitation practice.
  F7 Free Papers: Lower Limb Prosthetics  (F7)
A Double-Blind Study of a Bimodal Ankle-Foot Prosthesis for Improved Balance and Mobility
Sara Koehler-McNicholas, PhD
A novel bimodal ankle-foot prosthesis has been designed that can accommodate both standing and walking through the use of a rigid foot plate and an ankle that can lock and unlock. Results suggest that in the absence of visual feedback, the locked system may improve standing balance for experienced, relatively active lower-limb prosthesis users.
  F8 Free Papers: Lower Limb Prosthetics  (F8)
Comparison of Self-report and Clinician Measured Body Mass Index Calculations for Lower-Limb Amputees
Jennifer Lynn Lucarevic, PT, DPT, PhD Candidate
Body mass index has been found to be a surrogate measure of body fat, a predictor of obesity, and an indicator of type 2 diabetes. This study explores two methods of calculating BMI in lower-limb amputees.
  F9 Free Papers: Lower Limb Prosthetics  (F9)
Gait Symmetry in Transfemoral Amputees
Seok Hun Kim, PT, PhD
This study identifies the effects of a split-belt treadmill gait training program on symmetric walking in people with unilateral transfemoral amputation. The results show that adaptation of gait symmetry during split-belt treadmill training can be carried over to over-ground walking and increase exercise tolerance in unilateral transfemoral amputees.
  F10 Free Papers: Lower Limb Prosthetics  (F10)
Visual Localization for Prosthetic Lower-Limb Control
Eric Rombokas
We demonstrate vision-based localization of the lower limb during walking on varied terrain. We use this location to estimate terrain and anticipate transitions.
  F11 Free Papers: Lower Limb Prosthetics  (F11)
Ability of Epidermal Sensors to Measure Lower-Limb Temperature During Activity with a Prosthesis Simulator
Lilly Tran, MS
This study assesses temperature readings from epidermal sensors by comparing them to thermocouples, which have been previously used to collect data from the socket-limb interface. Epidermal sensors provided temperature magnitudes and trends during initial testing that are reasonable.
12:20 PM - 1:50 PM F12 Free Papers: Lower Limb Prosthetics  (F12)
The Effect of Cleat Placement on Force Generation in a Cyclist with a Transtibial Amputation: A Pilot Study
Kyle R. Leister, MPO, CO, ATC
The aim of this study was to analyze peak force production at three different cleat positions on the plantar aspect of a transtibial amputee’s cycling shoe during maximal exertion and steady state trials.
  F13 Free Papers: Lower Limb Prosthetics  (F13)
A Case Study Demonstrating the Benefit of the Össur Proflex Foot to a User with a Unilateral Transtibial Amputation
Lee Childers, PhD, MSPO, CP
This case study demonstrates the problem with using traditional inverse dynamics to quantify push off of energy storage and return feet while offering a solution through using a unified deformable (UD) segment model. The UD approach demonstrates the Össur Proflex foot provides more push off than a Variflex foot.
  F14 Free Papers: Lower Limb Prosthetics  (F14)
Turning Biomechanics of Lower-Limb Prosthesis Users with a History of Falls
Jonathan S. Akins, PhD
Turning was assessed in prosthesis users performing a figure-of-8 walking test. Transfemoral (TF) prosthesis user without a history of falls had greater turn asymmetry than TF users with a history of falls.
  F15 Free Papers: Lower Limb Prosthetics  (F15)
Variable Stiffness Torsion Adaptor: Pilot Study with Transtibial Amputees
Glenn K. Klute, PhD
A variable stiffness torsion adapter might reduce residual limb injuries in persons with lower-limb amputation who are capable of complex gait maneuvers. This study examines the effect of three torsional stiffnesses on the peak transverse plane moments at the socket measured during five walking tasks using a within-subject experimental design and persons with transtibial amputation (n=5).
  F16 Free Papers: Lower Limb Prosthetics  (F16)
Perspiration and Secure Suspension for Lower-Limb Amputees in Demanding Environments
Glenn K. Klute, PhD
This study compared a prosthesis designed to unobtrusively expel perspiration with a standard-of-care prosthesis in hot and humid environments using a within-subject experimental design and persons with transtibial amputation (n=5).
2:00 PM - 3:30 PM F17 Free Papers: Lower Limb Prosthetics  (F17)
Change in Pressure Distribution with an Adjustable Socket
Garrett Hurley, CPO, CIO
Data quantifying the relationship between the profile of pressure distribution on a residual limb and patient outcomes are critical for prosthetic socket design and may further help to justify costs when payers challenge the need for socket adjustability or socket replacements. Results from this study support a direct correlation between socket shape and functional outcomes.
  F18 Free Papers: Lower Limb Prosthetics  (F18)
A Computational Tool to Assess Limb-Socket Interface
John Cagle
Three people with transtibial amputation were enrolled with limb shapes characterized as cylindrical, short-conical, and long-conical. The effect of limb shape on load transmission through the residual limb was assessed by creating finite element models from magnetic resonance images that captured participants’ limb, liner, and socket.
  F19 Free Papers: Lower Limb Prosthetics  (F19)
The Effect of Transfemoral Prosthetic Interface Design on Gait Biomechanics Using a CAREN System: IRC Compared to Sub-Ischial
Jason T. Kahle, MSMS, CPO, FAAOP
Transfemoral socket design has evolved over the last ten years due to advanced technologies. Understanding the differences between sub-ischial and ischial containment sockets is crucial to contend evolution. This case control compares sub-ischial to ischial ramus containment in perturbation scenarios. The Computer Assisted Rehabilitation Environment (CAREN) represents the ideal instrument to evaluate biomechanics when simulating walking and perturbation scenarios.
  F20 Free Papers: Lower Limb Prosthetics  (F20)
Hybrid Vacuum Pump for Vacuum-Assisted Suspension in Transfemoral Prostheses
Matthew Major, PhD
A hybrid vacuum pump for vacuum-assisted suspension of transfemoral sockets that integrates mechanical and electric function was developed and tested.
  F20A Free Papers: Lower Limb Prosthetics  (F20A)
Quantification of Rectifications for the Northwestern University Flexible Sub-Ischial Vacuum (NU-FlexSIV) Socket
Stefania Fatone, PhD, BPO(Hons)
Rectification maps and templates help communicate an important step in the fabrication of the NU-FlexSIV Socket facilitating dissemination of the technique and providing an alternative fabrication option via CAD-CAM and central fabrication.
5:15 PM - 6:15 PM F21 Free Papers: Upper Limb Orthotics  (F21)
Improving Upper-Limb Function in Chronic Stroke Utilizing Custom Myoelectric Bracing: A Case Report
Stefanie Dunaway MS, OTR/L
A case report that describes the use of a custom-fabricated myoelectric elbow-wrist-hand orthosis to increase upper-extremity function in a chronic stroke survivor.
  F22 Free Papers: Upper Limb Orthotics  (F22)
Case Study: Upper-Extremity Dynamic Orthoses in an Individual with Arthrogryposis
Elyse Annette Zanghi, CO
This case study examines an individual with arthrogryposis who used two upper-extremity dynamic orthoses: a trunk orthosis with flexion assist developed at the Research Institute of Chicago, and a WREX manufactured by DuPont. Fabrication of the devices, use, and results of using the device will be discussed.
  F23 Free Papers: Upper Limb Orthotics  (F23)
Giving Them a Hand: Wearing a Myoelectric Elbow-Wrist-Hand Orthosis Reduces Upper-Extremity Impairment in Chronic Stroke
Heather T. Peters, MOT, OTR/L
The vast majority of stroke survivors exhibit no movement in their affected hand, which significantly undermines performance of daily tasks. There is an urgent need to determine the efficacy of technology that facilitates movement in this population. The purpose of this study was to determine the impact of a myoelectric orthosis on paretic upper-extremity outcomes in chronic stroke.
Time Program Code Friday, March 3
9:00 AM - 10:30 AM F24 Free Papers: Lower Limb Prosthetics  (F24)
Change in Pressure Distribution with Alignment Changes
Garrett Hurley, CPO, CIO
Results of this study support the hypothesis that there is a direct correlation between prosthetic alignment and patient outcomes. Thus, support is provided for the billing of align-able prostheses and appropriately aligned prostheses.
  F25 Free Papers: Lower Limb Prosthetics  (F25)
The Relationship Between Limb Motion, Limb Volume, Socket Comfort, and Prosthetic Suspension
Matthew Wernke, PhD
Limb motion inside the socket may provide a clinically relevant tool to quantify and monitor changes in socket fit. The purpose of this study is to understand the relationship between limb motion, limb volume, and socket comfort and how these outcomes are impacted by suspension method.
  F26 Free Papers: Lower Limb Prosthetics  (F26)
Clinical Practices to Optimize the Socket Fitting Process
Matthew Wernke, PhD
The socket fitting process can be difficult, but it is vital to the success of the prosthesis. The purpose of this study is to understand how clinical procedures affect limb volume stability in order to optimize the socket fitting procedure.
10:35 AM - 12:10 PM F27 Free Papers: General Prosthetics  (F27)
Effective Subject Blinding In P&O Research
Anna Marie Clark
Several methods of subject blinding; e.g., concealing (application of) an intervention, for use in prosthetics and orthotics research are compared.
  F28 Free Papers: General Prosthetics  (F28)
System Group Dynamics and Their Effect on Innovation in O&P
Gerald E. Stark, MSEM, CPO/L, FAAOP
Any new innovation comes with a higher degree of uncertainty and risk. Individuals who are less anxious and risk adverse may tend to adopt innovations more easily than others who regard change with greater uncertainty. This may be especially true in healthcare, where stress is heightened.
  F29 Free Papers: Lower Limb Prosthetics  (F29)
Quantification of Rectifications for the Northwestern University Flexible Sub-Ischial Vacuum (NU-FlexSIV) Socket
Stefania Fatone, PhD, BPO(Hons)
This session become F20A and has been moved to Thursday.
Rectification maps and templates help communicate an important step in the fabrication of the NU-FlexSIV Socket facilitating dissemination of the technique and providing an alternative fabrication option via CAD-CAM and central fabrication.
10:35 AM - 12:10 PM F30 Free Papers: General Prosthetics  (F30)
Online Self-Management Program for People with Limb Loss: Initial Evaluation of the PALS Online Program
Stephen T. Wegener, PhD
Data is presented on the impact of an online self-management program designed to improve outcomes following limb loss.
  F31 Free Papers: General Prosthetics  (F31)
Effectiveness of Augmented Reality Biofeedback in Balance and Gait Applications: A Pilot Study
Jonathan S. Akins, PhD
Augmented reality biofeedback may be a technology to provide telerehabilitation services to patients who do not have access to traditional rehabilitation clinics.
  F32 Free Papers: General Prosthetics  (F32)
Predicting Fall Risk in People with Unilateral Lower-Limb Loss Using a Component Timed-Up-and-Go (cTUG)
Sheila Marie Clemens
The value of the timed-up-and-go (TUG) test as an outcome measure is enhanced when it is administered in a way that examines its component sub-tasks: sit to stand transitions, linear gait, and turning. Significant differences in the performance of each of these components are evident between lower-limb prosthetic users categorized as low or increased fall risk.
2:00 PM - 3:30 PM F33 Free Papers: Lower Limb Prosthetics  (F33)
A Systematic Review to Determine Post-Amputation Functional Performance Level and Develop a Prosthetic Candidacy Treatment Algorithm
Jason T. Kahle, MSMS, CPO, FAAOP
A clinical treatment pathway for determining prosthetic candidacy was developed. A small number of modifiable factors for exclusion of prosthetic candidacy were identified. Identification of predictive factor would increase and streamline access to prosthetic care for a majority of individuals experiencing limb loss in the United States.
  F34 Free Papers: Lower Limb Prosthetics  (F34)
Gait Training Interventions for Lower-Extremity Amputees: A Systematic Literature Review
M. Jason Highsmith, PT, DPT, PhD, CP, FAAOP
Discuss the results of a systematic review of the literature to determine the evidence strength supporting gait training interventions and to formulate empirical evidence statements (EESs) to guide practice and research related to therapeutic gait training for lower-extremity amputees.
  F35 Free Papers: Lower Limb Prosthetics  (F35)
Matching Peak GRF by Utilizing Powered Prosthesis
Shawanee Patrick
This presentation details a case study in which a powered prosthesis was used to minimize differences in ground reaction force (GRF) loading.
  F36 Free Papers: Lower Limb Prosthetics  (F36)
How Often Do People with Transtibial Amputation Don and Doff Their Prostheses?
Kate Allyn, CPO, FAAOP
Review the results of this study that developed and tested a simple sensor for monitoring when people with transtibial amputation don and doff their prostheses.
  F37 Free Papers: Lower Limb Prosthetics  (F37)
Diagnostic Assessment of Limb Fluid Volume Changes in People with Transtibial Amputation: Testing a Clinical Monitoring Tool
Ty Youngblood
The purpose of this research is to evaluate a clinical diagnostic tool for assessing a patient’s limb fluid volume changes and establishing a patient’s fluid volume profile.
  F38 Free Papers: Orthotics  (F38)
Current Practice in Orthotic Treatment of Adolescent Idiopathic Scoliosis
Sun Hae Jang, MSc, CO, FAAOP
This study gathered the opinions of experienced spinal orthotists to determine areas of agreement or disagreement regarding orthotic biomechanical correction theory for adolescent idiopathic scoliosis. When areas of disagreement were identified, literature was reviewed to identify existing evidence and advance understanding in these areas.
  F39 Free Papers: Orthotics  (F39)
Biomechanical Effects of Adding a Flat Region to Constant Radius Rocker Bottom Shoes
Kyle Barrons, CPO, MSOP
Constant radius rocker bottom shoes (RBS) have been found to reduce ankle pain in persons with talar lesions. However, this shoe was found to be unstable for standing balance. An approach to enhancing the stability of patients using RBS may be to add flat regions in the rocker. This study investigated whether or not flat regions built into the CR-RBS would have an effect on the on ankle kinematics.
  F40 Free Papers: Orthotics  (F40)
Mechanical Properties and Isolated Effects of Ankle-Foot Orthosis Plantar Flexion Resistance, Dorsiflexion Resistance, and Alignment on Hemiparetic Gait in Stroke
Nicholas A. LeCursi, CO
The importance of adjusting AFO mechanical properties to optimize gait in individuals with stroke has been gradually recognized by researchers and clinicians. This paper presents the mechanical properties of a novel articulated AFO with independently adjustable plantar flexion resistance, dorsiflexion resistance, and alignment, and their effect on ankle and knee joint angles, moments, and power in chronic stroke.
  F41 Free Papers: Orthotics  (F41)
Effects of Heel Wedge Properties on Gait with the Intrepid Dynamic Exoskeletal Orthosis (IDEO)
Andrea J. Ikeda, CP
Participants walked using an IDEO with six different heel wedges of three heights and two durometers. Changing height and durometer systematically affected loading of the foot and has great potential to improve an individual’s gait.
  F42 Free Papers: Orthotics  (F42)
Clinical Impact of a Tunable Ankle Foot Orthosis on Hemiparetic Gait in Stroke: A Case Study
Beatrice Janka, CPO
Clinicians have increasingly recognized the importance of optimizing mechanical characteristics of orthoses specific to each patient’s needs. This case study presents the clinical approach and outcome of the orthotic treatment of a chronic stroke patient using an AFO that facilitates the independent adjustment of various mechanical characteristics.
3:35 PM - 5:05 PM F43 Free Papers: Prosthetics – Osseointegration  (F43)
The Osseointegration Group of Australia Accelerated Protocol (OGAAP-1) for Two-Stage Osseointegrated Reconstruction of Amputees
Jason T. Kahle, MSMS, CPO, FAAOP
Osseointegration is a realistic option as a primary and secondary amputation technique for prosthetic attachment of non-dysvascular amputees. This presentation of 53 osseointegration prosthetic attachment users will specifically address the Osseointegration Group of Australia Accelerated Protocol (OGAAP-1) for two-stage ossseointegrated reconstruction of amputees.
  F44 Free Papers: Prosthetics – Osseointegration  (F44)
Post Limb Reconstruction Strategy for Post Traumatic Amputees (OGAAP-2)
Jason T. Kahle, MSMS, CPO, FAAOP
Osseointegration (OI) is a realistic option as a primary and secondary amputation technique for prosthetic attachment of non-dysvascular amputees. This prospective study compared 20 subjects utilizing one OI protocol to 32 utilizing another, more accelerated protocol. The second, more accelerated protocol (OGAAP-2) reduces rehab time and prosthetic use to three months.
  F45 Free Papers: Prosthetics – Osseointegration  (F45)
Safety of Osseointegrated Implants for Transfemoral Amputees: A Multicenter Prospective Cohort Study
Jason T. Kahle, MSMS, CPO, FAAOP
Osseointegration is a safe procedure for the primary and secondary reconstruction of all non-dysvascular amputees. Mild infection and irritation of the soft tissue in the skin penetration area are common and successfully managed with simple measures. Severe infections resulting in septic implant loosening are rare. These findings indicate careful surgical soft tissue handling is essential.
  F46 Free Papers: Prosthetics – Osseointegration  (F46)
Improved Function and QoL Following Osseointegrated Reconstruction of Post-Traumatic Amputees
Jason T. Kahle, MSMS, CPO, FAAOP
In these 32 post-traumatic unilateral transfemoral amputees (TFAs), significant improvements were achieved in all of the outcome measures of health-related quality of life, ambulation ability, and functional levels. These results confirm a suitable alternative for post-traumatic unilateral TFAs experiencing socket-related discomfort, with the potential to reduce recovery time compared to other protocols.
  F47 Free Papers: Prosthetics – Osseointegration  (F47)
A Comparison of Prosthetic Mobility in Amputees with Osseointegration versus Traditional Amputation and Socket
Robert Gailey, PhD, PT
Lower-limb amputees (LLA) with osseointegration prostheses (OIP) were able to demonstrate mobility similar to LLA with traditional socket prostheses as measured by the Timed Up and Go (TUG), and OIP TFA’s PLUS-M perceived mobility were significantly better.
  F48 Free Papers: Prosthetics – Osseointegration  (F48)
Comparison of Balance Outcomes in Amputees with an Osseointegrated versus Traditional Socket Prostheses
Jennifer Lynn Lucarevic, PT, DPT, PhD candidate
People with an osseointegrated prostheses (OIP) have reported a phenomenon called osseoperception, which is an improved ability to identify various sensations through their artificial limb. This study compares balance performance in subjects with OIP and traditional socket prosthesis using a case-control study design.
Time Program Code Saturday, March 4
8:00 AM - 9:30 AM F49 Free Papers: Lower Limb Prosthetics  (F49)
Socket Fit Comfort Helps to Predict Physical Activity Level Among Adults with a Unilateral Transtibial Amputation
Jaclyn Megan Sions, PhD, DPT, PT
This talk explores the impact of socket fit comfort on physical activity; i.e., the number of steps taken per day and the number of minutes spent in low-, medium-, and high-intensity activity, as obtained from an accelerometer. Data from 50 individuals with a unilateral transtibial amputation demonstrate that socket fit comfort is predictive of daily step counts and high-intensity activity minutes.
  F50 Free Papers: Lower Limb Prosthetics  (F50)
Self-Report Measures Help Predict Daily Step Counts Among Individuals with a Unilateral Transtibial Amputation
Jaclyn Megan Sions, PhD, DPT, PT
Accelerometers, which provide daily step counts, help to objectively determine the physical activity level of individuals with lower-limb amputations who are utilizing a prosthetic device. Data provided will demonstrate that commonly used self-report measures help to explain physical activity level; i.e., daily step counts, beyond age, gender, time elapsed since the amputation, and comorbidities.
  F51 Free Papers: Lower Limb Prosthetics  (F51)
Step Count Accuracy of the Stepwatch and FitBit One Among Individuals with a Unilateral Transtibial Amputation
Elisa Arch
This OPERF-funded study evaluated the step count accuracy of the StepWatch and FitBit activity monitors during forward, linear walking and complex walking and compared monitor step counts during real-world walking. Accuracy during forward walking was excellent. The StepWatch appears more accurate during complex walking. The FitBit consistently counted fewer real-world steps than the StepWatch
  F52 Free Papers: Lower Limb Prosthetics  (F52)
Neuromuscular Electrical Stimulation Use in Transtibial Amputations
Sara Peterson, CPO, MBA, FAAOP
Discuss a novel idea to apply neuromuscular electrical stimulation (NMES) to individuals with amputation to gauge the results.
11:30 AM - 1:00 PM F53 Free Papers: Lower Limb Prosthetics  (F53)
Preliminary Evaluation of a Microprocessor Controlled Knee Ankle Prostheses (MKAP) for Above-Knee Amputees
Boris Dauriac
Benefit from a controlled knee and ankle prosthesis compared to a controlled knee and an energy-storing and return foot were evaluated with quantified walking analysis in several daily living situations. This study shows, among others results, an improvement of foot flat period.
  F54 Free Papers: Lower Limb Prosthetics  (F54)
Comparative Effectiveness of MPK and NMPK Knees in K2 Transfemoral Amputees
Kenton R. Kaufman, PhD
Learn about a clinical trial that demonstrates when K2 transfemoral amputees receive an MPK (K3 technology), they reduce falls while increasing their physical activity. These improvements result in increased patient satisfaction. Thus, providing advanced MPK prosthetic technology to individuals classified as K2 amputees is defensible.
  F55 Free Papers: Lower Limb Prosthetics  (F55)
Initial Findings of User Feedback of Powered Knee-Ankle Intent Recognition Errors
Suzanne B. Finucane, MS, PTA
Use of the Subject Evaluation of Gait Instability (SEG) to quantify the effect of real-time classification errors when transfemoral amputees ambulate with a powered knee-ankle prosthesis.
  F56 Free Papers: Lower Limb Prosthetics  (F56)
Differences in Stepping and Functional Level While Using the Genium and C-Leg Microprocessor Knees
M. Jason Highsmith, PT, DPT, PhD, CP, FAAOP
The purpose of this report was to determine if functional level, observational analysis of hill ascent, and multi-directional stepping are improved with Genium relative to C-Leg.
  F57 Free Papers: Lower Limb Prosthetics  (F57)
Robust Inclusion of EMG Signals into the Control of Lower-Limb Powered Prostheses
Levi Hargrove, PhD
In this work we demonstrate the effectiveness of using an adaptive pattern recognition to improve the control of powered lower-limb prostheses. The system learns to incorporate EMG signals as the user walks and can adapt to changes in signal quality cause by volume fluctuation, perspiration, electrode liftoff, or excessive movement artifact.
1:10 PM - 2:40 PM F58 Free Papers: Lower Limb Prosthetics  (F58)
In-vivo Performance of a Fiberglass Dynamic Elastic Response Feet
Kenton R. Kaufman, PhD
Learn about a clinical trial comparing the performance of two types of dynamic elastic response feet: carbon fiber versus fiberglass composite. The results demonstrate increased energy return and greater patient satisfaction when using the fiberglass foot.
  F59 Free Papers: Lower Limb Prosthetics  (F59)
Crossover and Energy Storing Prosthetic Feet in Adults with Transtibial Amputation: A Comparative Effectiveness Study
Brian J. Hafner, PhD
This study was conducted to evaluate the relative effectiveness of energy storing and crossover prosthetic feet in adults with transtibial amputation. Outcomes included metabolic energy expenditure, endurance, walking performance, and self-reported mobility, fatigue, balance confidence, activity restrictions, and satisfaction.
  F60 Free Papers: Lower Limb Prosthetics  (F60)
Comparing Prosthetic Feet Using Stiffness Profiles
Nicholas D. Womac
Stiffness values were determined over a range of sagittal and coronal foot orientations for 28 different prosthetic feet. The resulting stiffness profiles were used to evaluate how the stiffness varied in both the sagittal and coronal planes as well as how the profiles varied across feet.
  F61 Free Papers: Lower Limb Prosthetics  (F61)
Effect of Shoes on the Mechanical Properties of Prosthetic Feet Utilized in Tropical Countries
Corin Shirley
Prosthetic feet are known to have short lifespans in tropical nations and are not easily replaceable due to a low number of practitioners and funds. This study examines a simple solution to extend that lifespan. Findings suggest that shoes may make a significant difference on the lifespan of the ICRC foot when exposed to a tropical environment and ISO 10328 standard testing.

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