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Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney 2020 University of Montana

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney

Undergraduate Theses and Professional Papers

Ground dwelling birds must scale all kinds of complex terrain in order to survive in their natural environments. For instance, Alectoris chukar live on steep hillsides with slopes of up to 60° or 172.3% slope. We undertook the present study to improve understanding of how birds successfully traverse such complex terrain. Using a high speed camera, we analyzed the hind limb kinematics of chukars during normal locomotion on a 10° and 35° incline, decline, and level slope. We compared the data collected from the video recordings, which we had used to identify and digitize the bony landmarks, between all ...


Effect Of Exercise Position On Percent Changes In Serratus Anterior Muscle Thickness, Joseph M. Day 2019 University of Dayton

Effect Of Exercise Position On Percent Changes In Serratus Anterior Muscle Thickness, Joseph M. Day

Joseph Day

Objective: A reliable method for measuring SA thickness with ultrasound imaging has been reported, yet the ability to detect differences in levels of contractility has yet to be established. The purpose of this study was to determine if there are differences in the percent change in thickness of the SA during four different exercise positions performed by healthy individuals.

Design: Observational study

Setting: Laboratory

Participants: Twenty-eight healthy participants, mean age 26 (SD 4, 57% female, 100% right handed)

Methods: Volunteers were positioned in a standardized sitting posture and anatomical landmarks were marked for ultrasound probe positioning. Two resting and two ...


Current Athletic Training Educational Preparation For Dry Needling, Brian V. Hortz, Sue Falsone, Duncan Tulimieri 2019 Denison University

Current Athletic Training Educational Preparation For Dry Needling, Brian V. Hortz, Sue Falsone, Duncan Tulimieri

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Dry needling is an advanced practice skill that many athletic trainers are being trained to perform. The purpose of this study is to determine the degree to which the current athletic training educational competencies and standards prepare practitioners for the performance of dry needling tasks. Methods: An expert panel review was used to verify which of the dry needling tasks are currently taught through entry-level athletic education as defined by the 5th edition competencies and 2020 standards. Results: Results demonstrated that 11% of the tasks were dry needling specific and these were regarded as not provided through entry-level ...


Commentary: The Use Of Case-Based Learning And Concept Mapping To Teach Students Clinical Reasoning, Jeremy R. Hawkins, Michael Reeder, Michael Olson, Amy Bronson 2019 Colorado Mesa University

Commentary: The Use Of Case-Based Learning And Concept Mapping To Teach Students Clinical Reasoning, Jeremy R. Hawkins, Michael Reeder, Michael Olson, Amy Bronson

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: Teaching students as inexperienced clinicians the process of evaluating athletic injuries and medical conditions is often challenging. Utilizing case-based learning and concept mapping as educational tools can facilitate growth in the clinical and diagnostic decision making process. Discussion: Experienced clinicians regularly employ case pattern recognition and hypothetico-deductive reasoning in clinical settings. Each type of reasoning is prone to anchoring and confirmation bias, devaluing relevant information, and framing effect if not utilized correctly. Classroom instructors and preceptors can use case-based learning and concept mapping to help students as inexperienced clinicians organize their thinking and more effectively apply their knowledge. Implications ...


The Effects Of Deep Oscillation Therapy For Individuals With Lower-Leg Pain, McCall E. Christian, Riley C. Koenig, Zachary K. Winkelmann, Kenneth E. Games 2019 Missouri State University

The Effects Of Deep Oscillation Therapy For Individuals With Lower-Leg Pain, Mccall E. Christian, Riley C. Koenig, Zachary K. Winkelmann, Kenneth E. Games

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Lower extremity (LE) pain accounts for 13-20% of injuries in the active population. LE pain has been contributed to inflexibility and fascial restrictions. Deep oscillation therapy (DOT) has been proposed to improve range of motion and reduce pain following musculoskeletal injuries. Therefore, our objective was to determine the effectiveness of DOT on ankle dorsiflexion range of motion (ROM) and pain in individuals with and without lower-leg pain. Methods: We used a single blind, pre-post experimental study in a research laboratory. Thirty-two active participants completed this study. Sixteen individuals reporting lower-leg pain and sixteen non-painful individuals completed the study. Participants ...


Perceptual And Contextual Sources Of Athletic Training Confidence: The Transition To Professional Entry Level Master’S Programs, Craig E. Pfeifer, Erin Moore, Brian Seiler, Caroline Thomason, Eva V. Monsma 2019 Lander University

Perceptual And Contextual Sources Of Athletic Training Confidence: The Transition To Professional Entry Level Master’S Programs, Craig E. Pfeifer, Erin Moore, Brian Seiler, Caroline Thomason, Eva V. Monsma

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: The shift of athletic training education from undergraduate degrees to professional master’s degrees and the prominence of computer-based credentialing may impact the hands-on experiences beneficial for developing confidence in athletic training competency domains. Health care provider confidence is critical for clinical skill development, performance and enhancing patient care. Purpose: To examine domain specific efficacy, its sources, learning contexts (i.e., classroom, laboratory, clinical settings) and clinical characteristics by program types. Method: Descriptive, cross-sectional design where 178 Athletic Trainers (AT; age 24.25 + 3.76, n = 72 male, n = 106 female) participated in the study (Master’s Program (MP ...


Exoskeletons: Used As Ppe For Injury Prevention, Terry Butler, Jason C. Gillette 2019 Lean Steps Consulting

Exoskeletons: Used As Ppe For Injury Prevention, Terry Butler, Jason C. Gillette

Jason C Gillette

THIS ARTICLE FOCUSES ON THE PREVENTION of shoulder musculoskeletal disorders (MSDs) commonly associated with muscle fatigue and repetitive overuse in an occupational setting. The authors’ purpose and motivation are the potential consideration of exoskeletons as PPE for shoulder injury prevention


Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly DeSpiegelaere, Mukul Mukherjee, Sara Myers 2019 University of Nebraska Medical Center

Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly Despiegelaere, Mukul Mukherjee, Sara Myers

Student Research and Creative Activity Fair

Single Session Walking Adaptations to an Ankle Foot Orthosis in Patients with Claudication and Peripheral Artery Disease

Todd Leutzinger1, 2, Iraklis Pipinos2, 3, Jason Johanning2, 3, Mukul Mukherjee1, Sara Myers1, 2

1Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE USA

2Nebraska and Western Iowa Veterans Affairs’ Medical Center, Omaha, NE USA

3Department of Surgery, University of Nebraska Medical Center, Omaha, NE USA

Email: tleutzinger@unomaha.edu

Peripheral artery disease (PAD) is an atherosclerotic disease affecting the arteries of the lower extremities [1]. The primary symptom of PAD is intermittent claudication ...


The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun 2019 University of Nebraska at Omaha

The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun

Student Research and Creative Activity Fair

Name: Jenny Anne Maun

Title: The effects of stiffness of a prosthetic shock-absorbing pylon on mechanical work during walking

Degree: Masters

Faculty Advisor: Kota Z. Takahashi, PhD

Co-authors: Steven A. Gard, PhD; Matthew J. Major, PhD

A prosthetic shock-absorbing pylon (SAP) is intended to attenuate impact forces, provide comfort, and reduce residual limb pain for prosthesis users. However, the effect of an SAP and its spring stiffness on the mechanical work done by the prosthetic limb during walking remains unclear. The purpose of this study: to investigate the effects of SAP spring stiffness and walking speed on the mechanical work ...


How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi 2019 University of Nebraska at Omaha

How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi

Student Research and Creative Activity Fair

The ankle structures play a key role in body support, forward propulsion and leg swing. One important property of the human ankle is its ‘quasi-stiffness’, or resistance to angular motion. The ankle joint stiffness can play a role in aiding the lower leg as its rocks over the foot. Human biological ankle stiffness changes in response to changes in the mechanical demands of walking (e.g. added load or changes in speed), using active muscle contractions. However, the role of ankle stiffness in regulating metabolic energy across walking conditions is unknown. Therefore, the purpose of this study is to determine ...


Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz 2019 University of Nebraska at Omaha

Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz

Student Research and Creative Activity Fair

Parkinson’s Disease (PD) causes gait to be more variable and more random. Gait variability is related to disease severity, and may be a marker of fall risks. Gait in PD is attention-dependent, meaning a distraction while walking could be detrimental. The effects of dual-task walking on gait variability in PD are unclear (in particular fractal fluctuations). This study will determine if dual-task walking impacts stride-to-stride variability compared to normal walking in people with Parkinson’s Disease. We predict that dual-tasking will lead to more random stride-to-stride variability in people with PD, compared to controls. Also, within the PD group ...


How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi 2019 Department of Biomechanics

How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi

Student Research and Creative Activity Fair

The foot's biomechanical role in walking on sloped surfaces is currently unclear. While previous biomechanics studies have examined the hip, knee, and ankle, the foot is oversimplified as a rigid-body segment. This oversimplification overshadows its complex structure and function. In this project, we use an innovative multi-segment foot model to explore how the foot adapts its mechanics to incline and decline walking. Preliminary results have revealed that the foot is capable of adapting its mechanical work profile to both incline and decline walking. Specifically, the foot can increase its positive work output (i.e., increased energy generation) during inclined ...


Effect Of Handrail Use During Stair Climbing In Oa Patients: A Pilot Study, Jenna Ackerman 2019 University of Nebraska at Omaha

Effect Of Handrail Use During Stair Climbing In Oa Patients: A Pilot Study, Jenna Ackerman

Student Research and Creative Activity Fair

Introduction: For the patients with osteoarthritis of the knee, stairs are commonly a difficult task and may be the first thing affect by osteoarthritis.1 This population often employs altered strategies when they approach, ascend, and descend the stairs compared to a healthy population. Within 12 years, 80% of patients develop knee osteoarthritis in the contralateral limb.2 Handrails play an important role by assisting with balance, control, and confidence, but their use needs to be assessed even further to fully understand how handrails impact the contralateral limb in osteoarthritic patients and how they may be integrated optimally into gait ...


3d Prosthetics Effects On Standing Posture In Unilateral Upper Limb Deficient Children, Keaton Young 2019 University of Nebraska at Omaha

3d Prosthetics Effects On Standing Posture In Unilateral Upper Limb Deficient Children, Keaton Young

Student Research and Creative Activity Fair

3D Prosthetics Effects on Standing Posture in Unilateral Upper Limb Deficient Children

Keaton Young

Department of Biomechanics, University of Nebraska at Omaha

Introduction

Upper Limb Reduction Deficiency (ULD) is a congenital disability that affects the upper limb, which the Center for Disease Control and Prevention estimates that nearly 1,500 babies are born with ULD in the United States yearly 1,2. Prior research has focused on functional treatment of the upper limbs but has lacked observance of the effects that prosthetics and limb loss incur to the trunk. Therefore, the purpose of this study is to examine the acute ...


The Time Of Slip Onset During Stance Influences The Characteristics Of The Unconstrained Perturbation, Corbin Rasmussen, Nathaniel Hunt 2019 University of Nebraska at Omaha

The Time Of Slip Onset During Stance Influences The Characteristics Of The Unconstrained Perturbation, Corbin Rasmussen, Nathaniel Hunt

Student Research and Creative Activity Fair

Falls pose a significant health hazard, resulting in devastating injuries like broken wrists, fractured hips, and traumatic brain injuries that exceed $50 billion in U.S. medical costs. To address these risks, biomechanists have subjected individuals to simulated slips in order to study the factors that lead to falls. These studies have focused on slips that happen immediately after heel-strike and are unnaturally restricted by the methods used to cause the slip. Therefore, the effects of unconstrained slips that occur throughout stance phase are unknown. To address this knowledge gap, we examined the relationship between the timing of slip onset ...


Subthreshold Vibration Influences The Posture And Gait Of Transtibial Amputees, Charles Sloan 2019 University of Nebraska at Omaha

Subthreshold Vibration Influences The Posture And Gait Of Transtibial Amputees, Charles Sloan

Student Research and Creative Activity Fair

Unilateral transtibial amputees lose the afferent pathways of the limb when amputation occurs. The addition of vibration has shown to increase sensation on the applied limb. This study looks into how the addition of subthreshold vibration affects amputee gait and posture. Vibration applied to the residual limb was shown to have worked in posture, but not in gait.


Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim 2019 University of Nebraska at Omaha

Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim

Student Research and Creative Activity Fair

A musculoskeletal simulation study is necessary to identify the cause-effect relationship between hip abductor weakness and ACL loading during athletic events such as landing and jumping. The purpose of this study was to identify the effect of weakness of hip abductors on lower extremity kinematics and ACL loading during single-leg landings. We hypothesized that hip abductor weakness would alter lower extremity joint kinematics. We also hypothesized that hip abductor weakness would increase ACL loading during single-leg landings. This study was a combination of a human experiment and a musculoskeletal modeling simulation. Ten healthy participants performed single-leg landing from a height ...


Isolating Aspects Of Gait Through The Use Of Pacing Signals: A Pilot Study, Joel Sommerfeld 2019 University of Nebraska at Omaha

Isolating Aspects Of Gait Through The Use Of Pacing Signals: A Pilot Study, Joel Sommerfeld

Student Research and Creative Activity Fair

A number of recent studies have shown that the temporal structure of pacing signals greatly influences the gait dynamics observed when coordinating with those signals. Typically, those studies have focused on autocorrelation structure (ACF). The current study builds on that work by addressing how the probability distribution (PDF) of pacing signals contributes to the process of synchronization. Results show that people use both of those sources of information when coordinating the timing of the lower limbs with an external pacing signal.


Exoskeletons: Used As Ppe For Injury Prevention, Terry Butler, Jason C. Gillette 2019 Lean Steps Consulting

Exoskeletons: Used As Ppe For Injury Prevention, Terry Butler, Jason C. Gillette

Kinesiology Publications

THIS ARTICLE FOCUSES ON THE PREVENTION of shoulder musculoskeletal disorders (MSDs) commonly associated with muscle fatigue and repetitive overuse in an occupational setting. The authors’ purpose and motivation are the potential consideration of exoskeletons as PPE for shoulder injury prevention


Gait Mechanics Differences Between Healthy Controls And Patients With Peripheral Artery Disease After Adjusting For Gait Velocity, Stride Length, And Step Width, John D. McCamley, Eric Cutler, Kendra K. Schmid, Shane R. Wurdeman, Jason Johanning, Iraklis Pipinos, Sara A. Myers 2019 University of Nebraska at Omaha

Gait Mechanics Differences Between Healthy Controls And Patients With Peripheral Artery Disease After Adjusting For Gait Velocity, Stride Length, And Step Width, John D. Mccamley, Eric Cutler, Kendra K. Schmid, Shane R. Wurdeman, Jason Johanning, Iraklis Pipinos, Sara A. Myers

Journal Articles

Patients with peripheral artery disease (PAD) experience significant leg dysfunction. The effects of PAD on gait include shortened steps, slower walking velocity, and altered gait kinematics and kinetics, which may confound joint torques and power measurements. Spatiotemporal parameters and joint torques and powers were calculated and compared between 20 patients with PAD and 20 healthy controls using independent t tests. Separate analysis of covariance models were used to evaluate group differences after independently adjusting for gait velocity, stride length, and step width. Compared with healthy controls, patients with PAD exhibited reduced peak extensor and flexor torques at the knee and ...


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