Medicine and Health Sciences Commons^™

Comparison Of Marker-Based And Marker-Less Motion Capture On Kinematic Outcomes; Comparison Of Lower Limb 3d Kinematic Outcomes Between Markerless And Marker-Based Systems During Overground Walking In Children With Cerebral Palsy (Cp) (Irb:8022-21-Ep), Jutharat Poomulna

UNO Student Research and Creative Activity Fair

The Gait Deviation Index (GDI) serves as a summary measure to evaluate gait pathology in children with cerebral palsy (CP), with a score ≥ 100 denoting typical gait and each 10-point difference representing one standard deviation from the mean. While marker-based (MB) motion capture, the gold standard for 3D gait analysis, has limitations for widespread clinical use, leading to the exploration of video-based markerless motion capture, specifically Theia3D. Theia3D has been validated for accuracy and reliability in healthy adults; however, its clinical applicability is limited. This study aims to compare the impact of different motion capture systems on GDI scores …

Idiopathic And Neuromuscular Scoliosis In A Female College Basketball Player Requiring Spinal Correction Surgery, Magan Kim

UNO Student Research and Creative Activity Fair

The purpose of this report is to present the case of a 20-year-old female collegiate basketball player who was diagnosed with a combination of idiopathic and neuromuscular scoliosis. Patient underwent thoracic spinal fusion surgery when she was 15 to resolve her extreme scoliosis. The uniqueness of this case stems from the athlete’s urgency to have to undergo a life-altering spine operation and still be able to successfully contribute to a collegiate basketball team. Athletic trainers should be knowledgeable and aware of how to maintain treatment/rehabilitation for athletes with scoliosis, operative or non-operative. Scoliosis should no longer be a reason to …

Posteriormedial Ankle Impingement In A Male Division I Ice Hockey Player: A Case Report, Bethany Thompson

UNO Student Research and Creative Activity Fair

The purpose of this case report is to present the case of a 21 year old male Division I collegiate hockey player’s injury during their season, resulting in posteriormedial ankle impingement of the deep posterior tibiotalar ligament, osteochondral lesion of the talus, and tenosynovitis of the tibialis posterior. The patient’s injury did not require surgery; however, they did complete a rehabilitation plan with a physical therapist and receive a cortisone injection. The patient had a positive outcome due to the athletic trainer sending the patient for immediate diagnostic imaging after initial consultation. The patient was able to continue participation in …

Considerations For Implementing An Ankle Foot Orthosis To Improve Mobility In Peripheral Artery Disease, Ayisha Bashir, Sara A. Myers, Danae Dinkel, Iraklis Pipinos

UNO Student Research and Creative Activity Fair

An ankle- foot orthosis (AFO) can contribute to push-off during walking by storing energy from heel strike in the rigid strut and subsequently returning force during push-off. Peripheral artery disease (PAD), a manifestation of systemic atherosclerosis, blocks the arteries supplying blood to the legs and causes muscle pain and weakness, which leads to difficulty walking. Wearing an AFO can help patients with PAD walk better. In our study, subjects decided whether to adopt or not adopt the AFO. Our goal is to assess early AFO intervention withdrawal (wAFO) and AFO intervention completion (cAFO). Participants (n=21) were recruited and consented to …

Ankle–Foot Orthosis Alters Biomechanics Of Lower Extremities During Walking, Farahnaz Fallah Tafti, Iraklis Pipinos, Jason Johanning, Hafizur Rahman, Mahdi Hassan, Sara Myers

UNO Student Research and Creative Activity Fair

Lower extremity peripheral artery disease (PAD) is a cardiovascular condition caused by narrowed or blocked arteries supplying blood to the legs. Leg pain and myopathy significantly impair gait from the first step. Using AFO may assist the gait and prolong the distance patients with PAD can walk. This study aimed to investigate the effect of AFO on the gait biomechanics of patients with PAD. Fourteen Participants walked over the force platforms with and without an AFO and kinetics and kinematics were combined to quantify torques and powers of the hip, knee, and ankle joints. Our data demonstrate that use of …

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 …

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 …

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 …

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 …

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 …

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 …

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 …

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

UNO 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 effects …

Left Achilles Tendon Rupture In A Male Collegiate Soccer Player, Benjamin Welch

UNO Student Research and Creative Activity Fair

ABSTRACT

Objective: To present the case of an Achilles tendon rupture including surgical repair and rehabilitation in a National Collegiate Athletic Association Division I, male, soccer athlete.

Background: While attempting to perform a backflip following a match victory, the athlete jumped up and experienced a gunshot sound and feeling on his posterior, distal, left leg. On-field evaluation included a positive Thompson Test for Achilles tendon (AT) rupture. Post injury imaging revealed a coinciding diagnosis.

Differential Diagnosis: AT strain, calcaneal fracture, fibula fracture, Shepard’s fracture

Treatment: Open surgery technique to repair the tear followed by rehabilitation protocol beginning with rest and …

Developing A Footswitch Device To Assess The Likelihood Of Falls In At-Risk Populations, Arash Mohammadzadeh Gonabadi

UNO Student Research and Creative Activity Fair

Falls are one of the major cause of injuries, reduced functioning and even mortality in older adults. Most of the falls occur during walking, so considering the mechanics of gait during walking can provide insight to identify the risk of fall in this population. A component of walking mechanics associated with falling in the elderly is gait variability (i.e. the inherent natural fluctuations between strides). Healthy states are associated with an optimal level of movement variability reflecting the adaptability of the underlying control system, while pathological gait can be either too regular, or periodic, or too random and disordered. In …

A Delayed Diagnosis Of Tarsometatarsal Ligament (Lisfranc) Sprain In A Female College Soccer Athlete And Foot Rehabilitation, Boyoung Park

UNO Student Research and Creative Activity Fair

A Delayed Diagnosis of Tarsometatarsal Ligament (Lisfranc) Sprain in a Female College Soccer Athlete and Foot Rehabilitation

Park B*, Nicola M*, Wilkins S*: *University of Nebraska at Omaha, Omaha, NE

Objective: To emphasize the importance of the correct treatment protocol and the proper rehabilitation exercises based on the patient’s injury condition and healing process. Background: A 22-year-old female division I soccer athlete underwent tarsometatarsal ligament repair to stabilize midfoot. The patient started feeling pain in the dorsal aspect of her left 1st and 2nd metatarsals at the beginning of the season, however, she reported no specific mechanism of injury …

Subthreshold Vibration Does Not Affect Walking Performance Of Transtibial Amputees, Charles Sloan

UNO Student Research and Creative Activity Fair

Ian Sloan , Jenny A. Kent, Shane R. Wurdeman, Adam L. Jacobsen, Kota Z. Takahashi, Nicholas Stergiou. Subthreshold vibration does not affect walking performance of transtibial amputees. Objective: To test the hypothesis that adding subthreshold vibrations to the thigh of the affected limb on amputees would allow for better control of the prosthesis. Setting: Biomechanics Research Building at UNO. Participants: 14 transtibial amputees (age range, 33-72y). Intervention: Applying subthreshold vibrations to thigh of affected limb for three different conditions; white noise signal, pink noise signal, and none. Outcome Measures: Step length, step width, and step …

Acute Subdural Hematoma In A High School Football Player Requiring Emergent Decompressive Craniecromy, Christine Center

UNO Student Research and Creative Activity Fair

The purpose of this report is to present the case of a high school football player that was injured in a game causing an acute subdural hematoma (SDH). A SDH is a potential life-threatening arterial vessel bleed in the brain, causing increased intracranial pressure. The intervention used to treat the athlete was an emergent decompressive craniectomy. The uniqueness of the case is due to both rare pathology and treatment method used. The athlete had a positive outcome due to prompt on-field assessment, and advanced surgical treatments. Certified Athletic Trainers (ATC) should know how to recognize symptoms of traumatic brain injury, …

Dynamic Stability Association With Cost Of Transport Is Different In Patients With Copd Compared To Healthy Controls, Farahnaz Fallah Tafti

UNO Student Research and Creative Activity Fair

Patients with chronic obstructive pulmonary disease (COPD), suffer from deficits in their functional performance besides their lung disease. In this situation, increased muscle activity is needed to provide safe walking patterns, stability while walking. This increase in muscle activity leads to increased metabolic cost, i.e., using more oxygen to complete the task. The main objective of this study is to investigate the relationship between walking stability and metabolic cost in patients with COPD in comparison with age-matched controls. Seventeen patients with COPD and 23 healthy controls walked on a treadmill at three different speeds: preferred, fast (+20% preferred) and slow …

Impact Of Real World Environments On Movement Variability, Matt Harrison

UNO Student Research and Creative Activity Fair

Osteoarthritis; OA for short, is the most common form of arthritis and is one of the leading causes of disability. OA is the progressive wearing down of the cartilage covering bones and joints. For those with end stage knee OA, a total knee arthroplasty, or replacement, is the standard treatment with more than 700,000 TKA’s performed annually. While pain is improved in general, the functional performance and activity levels of the joint often do not return to those of healthy individuals. To understand the long-term consequences of poor function post-TKA, we need data that characterizes an individual’s real-world movement and …

Effect Of A Passive Exoskeletal Device On Locomotor Adaptive Ability In Healthy Human Subjects, James Nielsen

UNO Student Research and Creative Activity Fair

Background: Functional mobility in stroke survivors is affected by the deterioration in bilateral coordination while walking. A passive exoskeletal device, the Kickstart (Cadence Biomedical, Seattle, WA), that provides assistance during walking may help correct asymmetrical gait patterns by providing different task constraints for each leg during gait training. Methods: 15 healthy young participants walked on a split-belt treadmill where the speed of each belt could be controlled independently. Each participant’s preferred walking speed (PWS), fast walking speed (FWS) and slow walking speed (SWS) was established. Participants then underwent the experimental protocol while either wearing or not wearing the exoskeleton. The …

Range Of Motion And Walking Distances In Subjects With Peripheral Artery Disease, Henamari Ybay

UNO Student Research and Creative Activity Fair

Peripheral artery disease (PAD) is caused by blockages in the lower extremity arteries that results in pain during walking known as claudication. Gait variability has emerged as a functional assessment in older and pathological groups1. A healthy gait pattern demonstrates stride-to-stride fluctuations within a certain range of values.2 This study uses standard deviation (SD) and coefficient of variation (CV) to assess the magnitude of variability in the time series. . We compared variability before and after surgery that restores blood flow to the legs of patients with PAD.. Thirty-nine subjects were recruited from the Veteran’s Affairs Medical Center. The setup …