Medicine and Health Sciences Commons^™

The Effect Of Walking Speed And Magnitude Of Perturbation On Compensatory Responses, Farahnaz Fallah Tafti, Jenna Yentes

UNO Student Research and Creative Activity Fair

Imposing a perturbation can induce an unstable condition during gait. Measuring the compensatory responses may be an accurate indicator of the ability to control stability. Responses to a perturbation can be quantified through the perturbed walking pattern deviations from an unperturbed condition. The aim of this study was to determine the effect of perturbation magnitude or speed of walking on compensatory responses to lateral perturbations during walking. Twenty healthy young participants recruited to this study and they were perturbed with the medium magnitude of perturbation, while walking on the treadmill at three different speeds (slow, preferred, and fast). They also …

A Systematic Review: Long Range Correlations In Running Gait, Mr. Taylor Wilson

UNO Student Research and Creative Activity Fair

Long range correlations (LRCs) are apparent in human walking and running gait and are indicative of a healthy system. A systematic review (SR) was completed to determine the typical LRC patterns in running. 20 articles were included in the SR. LRCs in running gait tend to be similar to the LRCs in walking gait, with fatigue contributing to a negative effect on the LRCs.

This SR could have implications on training guidelines for coaches and physical therapy methods to increase the LRCs in running gait for healthier functioning. More research is needed to determine how LRCs depend on running surface …

Pharmacist-Prescribed Birth Control: A Policy Analysis, Brianna Full

UNO Student Research and Creative Activity Fair

Although unintended pregnancy in the United States has steadily decreased from 2008, rates are still unacceptably high as almost half (42%) of all pregnancies are not wanted or timed correctly (Finer & Zolna). In 2011, 2.8 million of the 6.1 million pregnancies in the United States each year were unintended. Public health professionals are worried about unintended pregnancy because research shows that unwanted or mistimed pregnancies come with associations to adverse maternal and child health outcomes, such as delayed prenatal care, premature birth, and negative physical and mental health effects for children (Frost, Frohwirth & Zolna, 2016). Also, two-thirds (68%) …

Psycho-Physiological Reactions To Automated Leadership, Seth Hackleman

UNO Student Research and Creative Activity Fair

We all remember the 2008 Disney Pixar film Wall-E. This amazing children’s movie highlights the relationship between two robots and a human pilot on a mission to save the planet. Advances in artificial intelligence and computer technology are enabling new and exciting opportunities for humans to interact with machines. Where humans often change jobs or inevitably retire, machines can be employed for lifetimes. This fact makes them prime candidates for replacing human leaders in some circumstances to avoid the knowledge loss that can occur when a human leader changes position or no longer works in an organization. While human-to-human leadership …

Development And Testing Of Novel Antimicrobial Materials For Additive Manufacturing With Application In Space, Michael Thompson, Jorge Zuniga, Christopher Copeland, Roberto Saavedra, Claudia Cortes Reyes, Andres Acuña Velásquez, Daniel Martínez Pereira, Claudio Soto

UNO Student Research and Creative Activity Fair

PURPOSE: The purpose of the study was twofold: (i) develop and test the antimicrobial properties of a polylactic acid- and a polyurethane-based filament, and (ii) use these filaments to manufacture a socket-based prosthesis to verify printability and longevity of the antimicrobial properties. It was hypothesized that the formulation of a novel biocidal copper-based nanocomposite with a biocompatible 3D printing polymer/copolymer can be used for the development of antimicrobial medical devices to mitigate microbial risks during long space flight missions [1, 2, 3].

METHODS: Polylactic Acid-based Filament Development-The development of a polylactic acid-based filament involved several processes, such as fermentation …

Characterization Of Dimerization Domains On The Mannose-6-Phosphate/Insulin-Like Growth Factor 2 Receptor, Tyler Degener

UNO Student Research and Creative Activity Fair

The mannose-6-phosphate/insulin-like growth factor 2 (M6P/IGF2) receptor is a transmembrane protein with the ability to sequester growth factors from the extracellular matrix. This behavior links the receptor to tumor suppression. On a structural level, the extracellular portion of the protein is segmented into 15 homologous repeats, which can be divided further into 5 triplet domains, labelled 1-3, 4-6, 7-9, 10-12, and 13-15. Each triplet receptor displays its own unique ligand binding affinity, including the ability to form dimers with triplets on a second M6P/IGF2 receptor. In fact, previous studies indicate that this protein functions optimally when dimerized. Thus, the purpose …

Utilizing Chemical Mutagenesis To Determine U21 Mechanism Of Action In Toxoplasma Gondii, Andrew Pham

UNO Student Research and Creative Activity Fair

The abstract has been removed to protect intellectual property of the project.

Longitudinal Analysis Of Gait In People With Parkinson’S Disease To Improve The Detection Of Risk Of Falls, Ryan Meidinger

UNO Student Research and Creative Activity Fair

Within 3 years of diagnosis, more than 85% of people with Parkinson’s disease (PD) develop gait problems, which may lead to falls resulting in serious injury and reduced quality of life. The evolution of gait impairments with PD progression and the relationship between locomotor performance and falls in PD are unclear. In addition, large individual variations exist at the level of gait performances corresponding to specific levels of disease severity. Deficits in cognitive and sensory-motor functions in PD also impair the ability to walk while doing another task (i.e., dual-tasking). When attentional resources in PD patients are allocated to more …

Lessons Learned From Designing A Health Monitoring System To Improve First Responders Safety User Interface, Janaki Devi Naveena Akula, Jackson Urrutia, Hitesh Kumar Khatri, Anusha Manda, Jacob C. Grothe

UNO Student Research and Creative Activity Fair

Every day, first responders put their own lives at risk to help individuals, families, and communities. They experience many safety and health hazards on the front-line that can lead to injuries, chronic illnesses, and even death. Chronic illnesses include cancer, heart diseases, and behavioral health issues that often cause first responders life expectancy to be significantly shortened.

According to the National Fire Protection Association, there were 64 on-duty firefighter deaths in 2018. Sudden cardiac death accounted for about 40% of the on-duty fatalities. During 2017, there were an estimated 44,530 documented exposures to hazardous conditions (e.g. chemicals, fumes, radioactive materials) …

Impacts Of Mitoquinol Mesylate Intake On Vascular Function And Cognitive Impairment In Patients With Mild Cognitive Impairment: A Case Study, Lindie Strickler

UNO Student Research and Creative Activity Fair

Mild cognitive impairment (MCI) is a decline in cognitive function to a greater extent than natural aging. It has been suggested that reduced brain blood flow is strongly associated with reduced cognitive function and neurodegenerative diseases, of which is partially attributed to excessive reactive oxygen species (ROS) production. Mitoquinol mesylate has been shown to scavenge ROS and improve vascular function in healthy older adults. However, the effects of mitoquinol in MCI patients have not been investigated.

Purpose: to elucidate the impacts of mitoquinol intake on vascular endothelial function (flow-mediated dilation, FMD), arterial stiffness (pulse-wave velocity, PWV), and cognitive function in …

Quantitative Analysis Of Sexual Function In Women Up To 1-Year Postpartum, Amber Kelly

UNO Student Research and Creative Activity Fair

Background. Sexual satisfaction is a strong predictor of relationship satisfaction and a component of general well-being. Changes in sexual behavior are common during pregnancy and the subsequent transition to parenthood. Currently, little literature exists that examines the breadth of factors contributing to decreased female sexual functionality during the postpartum period. Identifying factors associated with decreased female sexual function following childbirth has the potential to improve postpartum women’s sexual satisfaction and overall quality of life. The study seeks to answer the following research questions: RQ 1: What impact has childbirth had on frequency of sexual activity in women within the first …

Comparing Individual Perceptions Of Food Desert With Quantitative Measures In Omaha, Nebraska., Hector N. Samani, Bradley Bereitschaft

UNO Student Research and Creative Activity Fair

Food deserts have been linked to an increase in chronic diseases such as obesity and diabetes, due to lower access to affordable and healthy foods. The United States Department of Agriculture (USDA) outlines various methods and variables for defining food deserts, in attempts to standardize what constitutes a food desert or their characteristics. The USDA identifies the state of Nebraska as having both rural and urban food deserts, with an increase of food insecurity from 1.1% – 3.0% between 2007 and 2012 and warns of further increase of food deserts and its impact if measures are not taken. However, there …

Unintended Pregnancy Among The Lgbtq+ Population, Kenna M. Barnes

UNO Student Research and Creative Activity Fair

Unintended births are related to adverse health outcomes for both parents and children (Mosher, et al., 2012). For the context of this research, unintended will include both mistimed (too early) and unwanted (wanted to avoid pregnancy) pregnancies. Non-heterosexual women, defined as anyone who has same-sex sexual behaviors, attractions, or identities, make up about 5.1% of the population according to Williams Institute (2019). The impact of unintended pregnancy among non-heterosexual individuals is not well understood, creating large disparities in the community. This has manifested in emotional, physical, and social wellness gaps compared to their heterosexual counterparts (Buchmueller & Carpenter, 2010; Everett …

Review Of Aging-Related Changes To The Neuroendocrine System And Implications For Older Caregivers, Nicholas Miller

UNO Student Research and Creative Activity Fair

This abstract has been removed to protect the intellectual property of the project.

Comparison Of Eye Gaze Behaviors Across Samples Of 8- And 9-Month-Old Infants At-Risk For Autism, Aaron Borcyk, Sarah Schmidt, Hannah Lopez, Shari Deveney, Anastasia Kyvelidou

UNO Student Research and Creative Activity Fair

Though a precise etiology for autism remains unknown, two infant populations present with particularly high risk: younger siblings of children diagnosed with autism and infants born prematurely with low birth weight. The aim of the present exploratory study was to determine differences in social and nonsocial eye gaze behaviors between two samples of 8­ and 9­-month infants from high ­risk groups.

The Effect Of Sensory Input On The Temporal Structure Of Center Of Pressure In Stroke Survivors, Samantha Chong

UNO Student Research and Creative Activity Fair

Stroke is the leading cause of disability that affects 17 million people worldwide. Patients post stroke suffer from maintaining balance because the brain may not be able to receive or process visual, vestibular and proprioceptive sensory information: all of which contribute towards maintaining stability. Information provided by vision is important for spatial orientation, as it develops an environmental perspective. Proprioception is detected through the stretching of tendonsand surrounding tissue, and is able to help the brain determine spatial location. The vestibular system provides the sense of balance detecting rotations and linear accelerations through the vestibulo-ocular reflex. The vestibular system is …

Updates On Epigenetic Alterations To Brca1: Chemosensitivities, Haley Blum

UNO Student Research and Creative Activity Fair

Breast cancer 1, early onset (BRCA1) is a human tumor suppressor gene encoding the BRCA1 protein that maintains genomic integrity. Molecular events may contribute to the loss of BRCA1 function, contributing to site specific tumorigenesis. Loss of BRCA1 function may arise from mutation or epigenetic events. Germline mutations of BRCA1 have been thoroughly implicated in heritable breast and ovarian cancers. More recently, sporadic breast cancer has been shown to be driven by epigenetic alterations to the BRCA1 promoter region, specifically methylation. Breast carcinomas that present with BRCA1 promoter methylation have been associated with triple negative breast cancers, as well …

Developing And Testing Of An Upper Limb Exoskeleton For Stroke Patients, Drew Dudley, David Salazar

UNO Student Research and Creative Activity Fair

Objective: The main objective of this study was to determine functional and neuromuscular outcomes of stroke patients using their non-preferred hand with and without a 3D printed passive exoskeleton compared to controls using their non-preferred hand with and without the passive exoskeleton. Methods: Adults at least six months post stroke (Stroke, n = 5) and age- and sex- matched healthy controls (Control, n = 5) performed nine trials of a gross motor task while having their brain activity measured. The Fugl-Meyer and “Box and Block” test was used to measure the gross dexterity of the subjects with and without the …

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

UNO 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 walking to …

An Exploration Of Why Healthcare Professionals Under-Report Observed Patient Aggression, Sydney Bonta

UNO Student Research and Creative Activity Fair

An Exploration of Why Healthcare Professionals Under-Report Observed Patient Aggression

Authors: Sydney Bonta & Lisa L. Scherer, Ph.D.

Advisor: Lisa L. Scherer, Ph.D.

According to the 2011 US Bureau of Justice Statistics report, medical professionals experienced the third highest proportion of workplace violence (WPV), with violence primarily emanating from patient. In a national survey of nurses employed in hospitals, 76% stated that they had encountered some sort of violence in their workplace (Speroni, Fitch, Dawson, Dugan, Atherton, & Leesburg, 2014). Similarly, patient aggression against physicians has long been a problem (Morrison, Lantos, Levinson, 1998). Despite this widespread exposure to WPV …

The Effect Of Arm Swing On Countermovement Vertical Jump Performance, Arash Mohammadzadeh Gonabadi

UNO Student Research and Creative Activity Fair

Vertical jumping is one of the popular ways to evaluate ankle-knee efficiency in athletic population. Arm swing can play a crucial role in enhancing vertical jump performance. This study aimed to address the differences in kinetic and kinematic parameters during countermovement jump motion with arm swing (AS) and no arm swing (NAS). We used OpenSim to examine the efficacy of AS in reducing the impulse applied to the body and changes in range of lower limb joint angles at landing instant. We calculated the maximum vertical peak of the ground reaction force and impulse generated at landing in two different …

The Opioid Crisis: Exploring The Effects On First Responders And Healthcare Professionals, Rachel Lubischer, Dawne Frain

UNO Student Research and Creative Activity Fair

In 2017, the National Department of Health and Human Services declared the opioid crisis a public health emergency (The White House, 2018). Although Nebraska ranks among the states with the lowest number of drug overdose deaths, rising opioid use creates safety concerns for first responders and healthcare professionals, and leads to strained resources in many jurisdictions. We hope to increase our audience’s knowledge on the opioid crisis, how it effects first responders and healthcare professionals, and pertinent policies and initiatives in Nebraska. Our audience will leave this presentation better equipped to initiate discussions with friends, family, and community members about …

Efficacy Of Assistive Devices Produced With Additive Manufacturing, James Pierce

UNO Student Research and Creative Activity Fair

Despite the frequency of musculoskeletal injuries such as sprains, broken bones and torn ligaments¹, treatment options are often costly, time-consuming and ill-fitted.^2,3 Additive manufacturing (“3D-printing) allows for the production of highly-customized and inexpensive assistive devices⁴, which suggests potential efficacy in the prescription of splints and casts for musculoskeletal injury.³ In the present study, a parametric, customizable splint/cast was created using a computer-aided design (CAD) package (Fusion 360, Autodesk, San Rafael, CA, USA) and produced with low-cost, desktop 3D printing (Ultimaker 2+ Extended, Ultimaker, Geldermalsen, Netherlands). Fitting of the devices was performed on five healthy …

Evaluating An Electronic Protocol In A Pediatric Intensive Care Unit, Jeanette Rose

UNO Student Research and Creative Activity Fair

A team of clinicians at Children’s Hospital and Medical Center (CHMC) developed a standardized protocol in 2018 for the care of patients needing sedation. This protocol is ordered through the EPIC electronic health record system for patients in the pediatric intensive care unit (PICU). When used, electronic protocols reduce the variation in clinical decision making which can ultimately improve patient outcomes. The goal of this project is to evaluate this technology, how the protocol is being used, and how it may be improved. Actual users of the EPIC sedation protocol were the subjects of this study, including PICU physicians, physician …

Visual Contributions To Balance Control During Gait, Kyle Brozek

UNO Student Research and Creative Activity Fair

We propose to isolate the contributions of continuous OF to the orthogonal relationship between balance and gait control during treadmill walking using a series of conditions. Manipulating the direction of OF using a CAREN (Motek Medical, Amsterdam, Netherlands) virtual reality treadmill environment will isolate these visual contributions in human subjects as they walk. We plan to tease out the effect of OF direction on the relationship between gait and balance control by having healthy young adults perform a series of treadmill walking trials while immersed in a VR environment. This will be done by manipulating the direction of walking and …

Temporal Step Coordination While Walking With A Single-Point Cane, Monica Barajas

UNO Student Research and Creative Activity Fair

TEMPORAL STEP COORDINATION WHILE WALKING WITH A SINGLE-POINT CANE

Monica Barajas, Russel Buffum, Tyler Hamer, Brian A. Knarr

University of Nebraska at Omaha, Omaha, NE

Stroke is the primary cause of long-term adult disability in the United States. Some physical limitations that a stroke survivor may encounter are foot drop, unilateral muscle weakness, limited coordination and muscle movement, among other effects that may directly affect gait. To address weakness and poor coordination post-stroke, a cane is commonly used. While a cane can help with balance, coordinating steps with an additional device can prove difficult to learn and may alter natural …

Gait Alterations In Peripheral Arterial Disease Are Not Worsened By The Presence Of Diabetes, Hafizur Rahman

UNO Student Research and Creative Activity Fair

Peripheral arterial disease (PAD) is a vascular disease where atherosclerotic blockages restrict blood flow to muscles in the lower extremities. Diabetes is a common co-morbid condition in PAD and has been shown to increase the risk of lower extremity amputation compared to PAD without diabetes. Although there is a clear pathological relationship between diabetes and PAD, the gait mechanics involved remain indistinct. Therefore, the purpose of this study was to determine whether the presence of diabetes in addition to PAD results in greater functional impairment during ambulation. Twenty-three subjects with PAD and twelve controls consented to participate in the research. …

The Effects Of A 12-Week Jump Rope Exercise Program On Abdominal Adiposity, Vasoactive Substances, Inflammation & Vascular Function In Prehypertensive Adolescent Girls, Ronald Headid

UNO Student Research and Creative Activity Fair

Childhood obesity is strongly associated with cardiovascular disease (CVD) development. It is necessary to combat unfavorable outcomes of obesity at a young age by utilizing effective interventions, such as exercise. Purpose: We sought to examine the effects of a jump rope exercise program on CVD risk factors, including body composition, vasoactive substances, inflammation, and vascular function in prehypertensive adolescent girls. Methods: Forty girls (age 14-16) were recruited and randomly assigned to a jump rope exercise group (EX, n=20) or control group (CON, n=20). Body composition, nitrate and nitrite levels, endothelin-1 (ET-1), c-reactive protein (CRP), systolic blood pressure and diastolic blood …

Division I Collegiate Male Basketball Player Post-Surgical Cai With Bone Spur Excision: A Case Report, Jacqueline Gutierrez

UNO Student Research and Creative Activity Fair

A Division I basketball player planted his foot and injured his ankle. He had a significant history of repeated lateral ankle sprains and was evaluated as having a grade 2 ankle sprain. He was referred for imaging revealing significant damage to a variety of tissues including a talar osteochondral defect and joint degeneration. He opted for surgical repair, however, post-surgical rehabilitation did not improve the athlete and a secondary procedure was necessary to correct complications. The initial procedure was successful to repair ligamentous stability of the joint. But was not sufficient to fully restore the joint to full function.

Estimating Variations In Metabolic Cost Within The Stride Cycle During Level And Uphill Walking, Arash Mohammadzadeh Gonabadi

UNO Student Research and Creative Activity Fair

Indirect calorimetry provides the average cost of a stride cycle and prevents from identifying which part of the gait cycle causes increased metabolic cost in patients, however, recent simulation methods allow estimating the time profile of metabolic cost within the stride cycle. In this study, we compare the estimations of the time profile of the metabolic cost of two simulation methods for level and uphill walking. We used kinematic, kinetic and electromyography data from level and uphill walking (one participant) to estimate the time profiles of metabolic cost using the muscle-level metabolic model of Umberger using electromyography and kinematic data …