Digital Commons Network^™

Effects Of Expected Service Life Exposures On The Functional Properties And Impact Performance Of An American Football Helmet Outer Shell Material, David E. Krzeminski

Dissertations

The purpose of this dissertation is to gain a greater scientific understanding of the changes in functional material properties and impact performance of an American football helmet outer shell material under expected service life exposures. The research goals are to (i) quantify chemical, physical, thermal, and mechanical degradation of an American football outer shell material under expected environmental conditions and (ii) develop a linear drop test impact protocol to employ expected on-field impact conditions to American football helmet components and a plaque-foam (i.e., shell-liner) surrogate. Overall, a step-wise progression of analysis was demonstrated to concurrently quantify and understand changes in …

Emotional Responses Following Sports-Related Concussion; A Pilot Study With Controls, Eva Keatley

Electronic Theses and Dissertations

Mild traumatic brain injury is associated with new onset emotional symptoms (Caroll et al., 2014; Konrad et al., 2011). This study will address a gap in the literature by examining the relationship between mTBI, autonomic arousal, and emotional symptoms in the acute phase of a concussion in athletes. In this pilot study, skin conduction and heart rate changes in response to emotional stimuli were measured in 25 undergraduate controls. Results indicate that emotional valence of facial expressions did not elicit the expected differential physiological responses as suggested by previous research, but habituation to an acoustic startle over repeated exposures was …

School-Based Concussion Management: Implementation Characteristics Of Student Services Personnel, Jeffrey Garofano

USF Tampa Graduate Theses and Dissertations

Concussion is an injury that disproportionately affects children and adolescents and has the potential to negatively impact school performance. Currently, a significant proportion of youth with concussion go unreported due to a lack of effective concussion surveillance procedures. Additionally, many individuals who have daily contact with youth (e.g., parents, teachers) lack training in how to assess or manage a concussion. Schools may be the ideal setting to address both of these problems as they have a high level of access to students and employ personnel (e.g., school psychologists, nurses, social workers, counselors) with experience in assessment and intervention. What is …

Test-Retest Of The Impact In A Sample Of Healthy Young Athletes, Amanda Marion O'Brien

Electronic Theses and Dissertations

Baseline neurocognitive assessments are recommended to assist with concussion management in athletes, but there is no research available regarding the psychometric properties of the Immediate Post-concussion Assessment & Cognitive Testing (ImPACT), the most widely used assessment tool, in children younger than high-school age despite its assertion that it can be used as young as 11 years old. The purpose of the present study was to determine the two-week test-retest reliability of the ImPACT neurocognitive test in a healthy sample of young athletes. Participants (n=40) included healthy athletes ages 10 through 14 who were asked to complete the baseline ImPACT neurocognitive …

Sports, Doping, And The Regulatory "Tipping Point", Dionne L. Koller

All Faculty Scholarship

This Essay seeks to explore whether there is a regulatory tipping point for sports-the point at which the government will take action to address a perceived problem in sports-and if so, what the circumstances are that generate such a moment. Such an issue is particularly important now. Troubling stories about athletes' health and well-being and the consequences of our most beloved games are nothing new. Reports of the effects of sports concussions, exploitation of college athletes, and other examples of the harms wrought by the "win at all costs" mentality dominate sports headlines and prompt calls for meaningful change. Many …

Health & Kinesiology News, Georgia Southern University

Health and Kinesiology, Department of - News (2015-2023)

• Concussion Expert to present Fries Lecture at Georgia Southern University

Newsroom, Georgia Southern University

Newsroom

• Concussion Expert to present Fries Lecture at Georgia Southern University

A Clinically Relevant Closed-Head Model Of Single And Repeat Concussive Injuries In The Adult Rat Using A Controlled Cortical Impact Device, Naseem Jamnia

College of Science and Health Theses and Dissertations

Recently, cases of multiple concussions, or mild traumatic brain injury, in athletes have received increased attention. Compared to single concussion (sTBI), repeat concussions (rTBI) can produce significant long-term consequences and increased risk for neurodegenerative disease. However, mechanisms underlying this difference are poorly understood and are best elucidated using an animal model. Closed-head models of rTBI have been developed in mice and juvenile rats, but few have been developed in the adult rat. To the best of our knowledge, there is no closed-head model using a commercially available device, including the Controlled Cortical Impact (CCI) device.

We developed a clinically relevant …

Can Wearing Headgear Decrease Symptoms Of Concussions Among Soccer Players?, Dustin Payne

Graduate Theses

No abstract was provided.

Concussion Awareness And Educational Outreach Through A Website And Mobile Application, Daniel J. Brogan

Neuroscience Summer Fellows

In recent years concussions have become a more apparent problem in youth and adolescent sports. 1 in 5 high school students will sustain a concussion during the season. Due to medical and scientific advances, the diagnosis of concussions is becoming much simpler with key markers that are signs for an injury. Returning to play too soon before an athlete is fully recovered increases the likelihood that serious and irreversible neurological deficits can occur. Symptoms for concussions are necessary to track in order for an athlete to properly report their recovery to a physician. Doctors primarily rely on a patient’s report …

Impaired Executive Function In Concussed Athletes, Marisa Gretz

Neuroscience Summer Fellows

Concussions are classified as mild traumatic brain injuries (mTBI). An individual that has sustained a concussion will experience symptoms such as nausea, possible memory loss, blurry vision, or loss of balance. Most symptoms subside within a few days, but a large pool of research raises concern for the recovery of executive function, specifically impulse control. Executive function relates to all tasks that require deliberate attention. Past research has shown adolescents record the highest number of sports concussions when compared to collegiate and professional athletes. The frontal lobe, which controls executive function, is not fully developed during the time of adolescence. …

Effect Of Duration Of Play On Injury Rate In Men's And Women's Ncaa Sport, John Craig Harwood

Electronic Theses and Dissertations

Injury rates increase with added athletic exposures. Mental and physical fatigue is potentially a component of this increase. However, large scale exposure-related injury trends by injury type, sport and sex are scarce. Consequently, the aim of this thesis was to determine whether injury rates are higher later in games and whether these rates vary with respect to sport, injury type and sex. NCAA injury data collected by the Datalys Center for Sports Injury Research and Prevention indicate that relative injury frequency increases in subsequent periods and this increase is uniform across sports. Subsequent period relative injury frequencies were greater in …

Investigation Of Asymmetric Impacts On Protective Headgear, Kristina Medero

Mahurin Honors College Capstone Experience/Thesis Projects

This project explores helmet-to-helmet impacts and their detriments with a unique perspective. The propagation of dangerous waves into the brain can result in a concussion. Considering 60% of NFL players have had at least one concussion (Epstein 2011), it is imperative to understand the materials that construct helmets and observe how these materials behave in regards to impact location while recording wave propagations from the impacts. This study interrogates the effect of asymmetric impacts on gridiron football helmets using the Large Chamber Scanning Electron Microscope (LC-SEM). Utilizing two standard issued football helmets made of polycarbonates, a hard plastic, vibrations from …

A Systematic Approach In Treating Post Concussion Syndrome, Donna Susan Freeborn, Ryan S. Francis

Student Works

Concussions and their associated symptoms are a growing health concern. The CDC reported in 2010 over 2.5 million people visited an emergency room for treatment of concussions and associated injuries: a 70% increase over the past decade.1 As the incidence of concussions continues to grow, Nurse Practitioners (NP) will be involved in the management of their follow-up care. Correctly managing these concussed patients is extremely important because a concussion can cause “... impairment affecting an individual’s memory, behavior, learning, and/or emotions. Appropriate diagnosis, management, and education are critical for helping these patients recover quickly and fully .” 2 The purpose …

Ohio Athletic Trainer’S Reactions To New Ohio Concussion Legislation, Alexander K. Heaton

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

No abstract provided.

Examination Of The Psychological Impact Of Sports-Related Concussions In The Adolescent Patient, Tamerah Hunt

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

No abstract provided.

Pathological Effects Of Repeated Concussive Tbi In Mouse Models: Periventricular Damage And Ventriculomegaly, Richard H. Wolferz Jr.

Honors Scholar Theses

Repeated concussive traumatic brain injury (rcTBI) is the most prominent form of head injury affecting the brain, with an estimated 1.7 million Americans affected each year (Kuhn 2012). Neurologists have been concerned about the danger of repeated head impacts since the 1920’s, but researchers have only begun to understand the long-term effects of rcTBI (McKee 2009). Although symptoms can be as mild as dizziness, current research suggests that multiple concussions can lead to a progressive degenerative brain disease known as chronic traumatic encephalopathy (CTE) (Luo 2008, McKee 2009, Kane 2013). Research on the brain is just beginning to scratch the …

The Impact Of Educational Materials On Collegiate Student-Athletes’ Knowledge Of Sports Related Concussions, Ryan Johnson

Graduate Theses

The purpose of this study was to investigate the effectiveness of three different types of concussion education materials for collegiate athletes and to evaluate knowledge transfer. Three different types of educational materials were used to educate the athlete. The athlete completed a pretest, completed an educational module, and then completed a posttest. Two weeks later the athlete completed a retention test. A total of 51 subjects participated in the study. The subjects were evaluated on a pretest, posttest, and retention test. Data were analyzed based on an independent t-test to compare pretest scores between athletes who have been previously concussed …

Coaching And Concussions: Prevention, Education, And Perspective, Colby J. Felts

Honors Thesis

The large participation of players and coaches in football has made it one of the most popular sports in America. Concussions have specifically gained national attention in football due to frequent, high impact collisions. A concussion injury poses a unique threat in high school football because of the developing adolescent brain and high participation numbers. Additionally, lack of medical personnel to diagnose concussions at the high school level imposes a legal duty on the coaches. The thesis develops a recommended plan of action for directors of Iowa high school football to assist in preserving the future of the sport. A …

Ohio Athletic Trainer's Reactions To New Ohio Concussion Legislation, Alexander K. Heaton

The Research and Scholarship Symposium (2013-2019)

This research examines the effects that concussion legislation has had on how Certified Athletic Trainers practice medicine in the state of Ohio. In the spring of 2009, the state of Washington passed a bill that would change how concussions are handled in youth sports. According to the legislation, all athletes who display any signs and symptoms of a concussion are to be removed immediately from play and are not able to return to play until cleared by a licensed professional health care provider. Since then, concussion legislation of some form has been passed in every state, with Ohio passing its …

Physical Therapy Management For A Female Student Athlete Post- Concussion: A Case Report, Matthew Johnson

All Capstone Projects

Background and purpose: The purpose of this case report is to describe vestibular, oculomotor, and cervical interventions that were theorized to improve the function and decrease symptoms typically seen in the post-concussion population.

Case Description: The patient was a 16 year old female who was status post concussion due to head trauma during gymnastics routine. Symptoms included short term memory loss, fatigue, drowsiness, dizziness, difficulty concentrating, headaches, visual disturbances, and neck pain.

Outcomes: Patient was seen for 7 treatments over the course of 6 weeks which mainly focused on oculomotor training, vestibular training, and cervicogenic relief. Outcomes were consistent with …

Physical Therapy Management Of A 16 Year Old Female With Vestibular Symptoms Following Suspected Concussion: A Case Report, Gina Tassione

All Capstone Projects

Background: Post concussion syndrome has become more common in adolescents involved in school related sports. Management of dizziness and imbalance is challenging after concussion; vestibular rehabilitation has been shown to reduce symptoms and improve balance.

Purpose: The purpose of this study was to describe and implement appropriate interventions for a patient with suspected post concussion syndrome. A combined approach using targeted physical therapeutic exercise as well as functional tasks were evaluated and assessed.

Case description: The patient was a 16 year old Caucasian female who presented to the clinic with a physician order to evaluate and …

Analysis Of Cognitive Deficits Of Concussion Patients: Dual Task, Motor Cognition, And Memory, Jorge A. Quezada Jr, Matthew A. Barlow, Michael F. Shaughnessy, Robyn Rausch

International Journal of Exercise Science: Conference Proceedings

The severity of a concussion is determined by the magnitude of the force of impact and the symptoms expressed post-injury. The most current and widely used test to identify a concussion in college athletics is called the Immediate Post Concussion Assessment and Cognitive Testing (ImPACT). It is a computerized neurocognitive test battery that measures different cognitive abilities and compares baseline with post-injury results. In the current study we formulated a series of physical and psychological cognition tests that measure similar cognitive abilities as the ImPACT. The purpose of this study is to demonstrate that physical tests paired with neurocognitive tests …

Concussion Education In High School Athletes, Nathan A. Birno, Larson Davick, Kyle Oostra

All Electronic Theses and Dissertations

This paper examines concussion education in high school athletes. Specifically, it examines how educationally beneficial a concussion presentation is for high school athletes. The study examined eighteen-year-old participants from two Minnesota high schools participating in Minnesota State High School League (MSHSL) sanctioned spring sports. A presentation on concussion definitions, signs/symptoms, and adverse effects was presented to the participants. A pre and posttest questionnaire was used to evaluate participants’ baseline knowledge on concussion related topics and their knowledge gained after hearing the presentation. Data was analyzed via a comparison of the mean score differences using a paired t-test of within group …

Factors Predicting Return To Play In Sports-Related Concussion: An Empirical Evaluation, Douglas R. Polster

Theses and Dissertations

Sports-related concussion and its subsequent management have become a top priority within the sports medicine research spectrum. In order to properly understand the complex nature of concussion management, multiple aspects of the injury were explored including the psychobiological nature of the injury, risk for further injury, diagnostic concerns, and return to play decision making. While much research has been dedicated to these areas, one in particular, return to play, is the focus of this current research study. To date, there has not been a method for accurately predicting return to play time after an athlete has sustained sports-related concussion. In …

Event Related Potentials In A Two Stimuli Auditory Oddball Task In Concussed College Athletes: A Linguistic Component Replication Study, Christopher Anthony Roosmalen

Open Access Theses & Dissertations

Concussions affect an estimated 1.6 to 3.8 million individuals annually and can result in persistent symptoms and cognitive impairments in attention and memory. Concussions are a rising health concern especially in concussion management. Event Related Potentials (ERP) may more accurately assess cognitive recovery making better return to play decisions. In 2013, Sanchez found no significant difference between concussed athletes and non-concussed individuals in the in amplitude of the P300 ERP component using an auditory oddball task consisting of 2 different consonant, vowel (CV) syllables. Because participants were instructed to maintain a mental and verbal count of the target stimuli, a …

Morphology Of Brain Sulci Trabeculae And Its Effect On Brain During Impacts, Sharlin Anwar

Dissertations and Theses

Traumatic brain injury (TBI) is an intracranial injury caused by direct contact or non-contact head impacts to the brain. TBI is a major problem that accounts for high incidents of hospitalizations each year. Thus, it is important to understand and predict the occurrence of TBI in an impact. It has been shown that the subarachnoid space (SAS) trabeculae play an important role in damping the effect of an impact, thus reducing the injuries. However, the influence of sulci parameters and the sulci trabeculae in TBI due to impact is unexplored. Studies have shown that inclusion of sulci in brain models …

Biomechanics Of Head Impacts Associated With Diagnosed Concussion In Female Collegiate Ice Hockey Players, Bethany J. Wilcox, Jonathan G. Beckwith, Richard M. Greenwald, Neha P. Raukar, Jeffrey J. Chu, Thomas W. Mcallister, Laura A. Flashman, Arthur C. Maerlender, Ann-Christine Duhaime,, Joseph J. Crisco

Department of Psychology: Faculty Publications

Epidemiological evidence suggests that female athletes may be at a greater risk of concussion than their male counterparts. The purpose of this study was to examine the biomechanics of head impacts associated with diagnosed concussions in a cohort of female collegiate ice hockey players. Instrumented helmets were worn by 58 female ice hockey players from 2 NCAA programs over a three year period. Kinematic measures of single impacts associated with diagnosed concussion and head impact exposure on days with and without diagnosed concussion were evaluated. Nine concussions were diagnosed. Head impact exposure was greater in frequency and magnitude on days …

Neurocognitive Patterns, Symptom Clusters, And Premorbid Factors That Predict Protracted Recovery From Concussion In Females, Sarah Pulaski

PCOM Psychology Dissertations

Concussion is an increasingly diagnosed injury that affects individuals of all ages. Although the underlying cause is unknown, research has demonstrated that females who sustain a concussion experience longer recoveries. Existing research has documented a relationship between age, gender, post-concussive headache and mental health conditions, and recovery; however, limited research has investigated the relationship between premorbid clinical variables and recovery. Research on post-injury neurocognitive declines and recovery has also demonstrated varied findings. Moreover, dizziness has been identified as significantly predictive of prolonged recovery, but no studies have investigated the effect of premorbid headache conditions on the development of dizziness. The …

Could It Be A Brain Injury? : Difficulty In Identifying Clients With Brain Injury In Psychotherapeutic Work, And Best Means Of Clinically Supporting Clients With Possible Brain Injury, Sarah E. Gordon

Theses, Dissertations, and Projects

This study explored the experiences of brain injury survivors as clients in psychotherapy in order to learn whether mental health professionals are properly screening for brain injuries, the factors that may inhibit mental health professionals from screening, the factors that may inhibit clients from disclosing their histories of brain injuries; to identify the psychotherapeutic needs specific to clients living with brain injuries; and to identify the best means of serving this client population. Nine adult brain injury survivors, ranging in age from 29-70, answered nine openended research questions during one of three focus groups. One participant was interviewed individually. Participants …