Open Access. Powered by Scholars. Published by Universities.®

Sports Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

2022

Institution
Keyword
Publication
Publication Type

Articles 61 - 89 of 89

Full-Text Articles in Sports Sciences

Content, Construct, And Criterion Validity, Reliability, And Objectivity For Aquatic Readiness Assessment For Brazilian Children, Nadia C. Valentini, Keila R G Pereira, Glauber C. Nobre Mar 2022

Content, Construct, And Criterion Validity, Reliability, And Objectivity For Aquatic Readiness Assessment For Brazilian Children, Nadia C. Valentini, Keila R G Pereira, Glauber C. Nobre

International Journal of Aquatic Research and Education

The Aquatic Readiness Assessment (ARA) is an assessment instrument for measuring children's aquatic readiness. The objective of the study was to translate the English version into Portuguese and to investigate the content, construct, and criterion validity as well as the reliability and rater objectivity of the ARA for Brazilian children. Twenty-three professionals and 464 children, newborn to 13 years-old participated in the study. We found strong content (94% to 100% of judges’ agreement) and criterion validity, internal consistency (α from .96 to .97), and inter-rater objectivity (ICC from .81 to .98), and test-retest reliability (ICC from .94 to .98). Appropriate …


Effective Lifeguard Scanning: A Review, Stephen J. Langendorfer Ph.D., Francesco (Frank) A. Pia Ph.D., Angela K. Beale-Tawfeeq Ph.D. Mar 2022

Effective Lifeguard Scanning: A Review, Stephen J. Langendorfer Ph.D., Francesco (Frank) A. Pia Ph.D., Angela K. Beale-Tawfeeq Ph.D.

International Journal of Aquatic Research and Education

The purpose of this scientific review was to address the question of what evidence-based visual surveillance/scanning skills exist in the peer-reviewed scholarly literature. It is well known that lifeguards spend a majority of their on-duty time surveying bathers and swimmers in the water. Lifeguards need to quickly distinguish among swimmers in distress and drowning persons from other bathers in order to rapidly come to their aid to prevent drowning. To be able to accomplish this task, Signal Detection Theory reveals that lifeguards need specific and extensive training in identifying the behavioral patterns associated with drowning persons and swimmers in distress. …


Lifeguard Performance Skills: A Systematic Review, Paulo Santiago, Filipe Maia, Sandra Santiago, Daniel Duarte, Pedro Teques Mar 2022

Lifeguard Performance Skills: A Systematic Review, Paulo Santiago, Filipe Maia, Sandra Santiago, Daniel Duarte, Pedro Teques

International Journal of Aquatic Research and Education

Drowning is one of the leading causes of death worldwide and lifeguards’ action can be regarded as a significant contribution to change that reality. In this regard, the purpose of this systematic review was to identify factors associated with lifeguards’ performance. After extensive research on PsycArticles, PsicBooks, PsycInfo, SportDiscus, Web of Science, PubMed, Scopus and SportDiscus databases, containing the keywords “lifeguard” AND “performance”, “lifeguard” AND “skills” and “lifeguard” AND “drowning”, we obtained 429 research articles. After eliminating duplicates, excluding those that had no relevance to the study, and screening against set criteria, a total of five articles were fully reviewed. …


An Interactive Game With Virtual Reality Immersion To Improve Cultural Sensitivity In Health Care, Paul J. Hershberger, Yong Pei, Timothy N. Crawford, Sabrina M. Neeley, Thomas Wischgoll, Dixit B. Patel, Miteshkumar M. Vasoya, Angie Castle, Sankalp Mishra, Lahari Surapaneni, Aman A. Pogaku, Aishwarya Bositty, Todd Pavlack Mar 2022

An Interactive Game With Virtual Reality Immersion To Improve Cultural Sensitivity In Health Care, Paul J. Hershberger, Yong Pei, Timothy N. Crawford, Sabrina M. Neeley, Thomas Wischgoll, Dixit B. Patel, Miteshkumar M. Vasoya, Angie Castle, Sankalp Mishra, Lahari Surapaneni, Aman A. Pogaku, Aishwarya Bositty, Todd Pavlack

Health and Sport Science Faculty Publications

Purpose: Biased perceptions of individuals who are not part of one's in-groups tend to be negative and habitual. Because health care professionals are no less susceptible to biases than are others, the adverse impact of biases on marginalized populations in health care warrants continued attention and amelioration.Method: Two characters, a Syrian refugee with limited English proficiency and a black pregnant woman with a history of opioid use disorder, were developed for an online training simulation that includes an interactive life course experience focused on social determinants of health, and a clinical encounter in a community health center utilizing virtual reality …


Sources Of Information That Introduced Exercise Science Students To Their Major, Erin Vanderbunt, Doug Brtek Feb 2022

Sources Of Information That Introduced Exercise Science Students To Their Major, Erin Vanderbunt, Doug Brtek

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 3: Issue 1, Article 3, 2022. This study examined the most influential sources of information that first introduced exercise science undergraduate students to their current major and sought to determine if any differences existed between demographic variables. An electronic questionnaire ranking the level of influence of 27 potential sources of information was completed by 131 exercise science students at a regional, midwestern university. Personal experience with the major, health care professionals in the major, and friend or family member in the major were among the highest non-college related sources, while college introductory courses …


What Have We Learnt From Quantitative Case Reports Of Acute Lateral Ankle Sprains Injuries And Episodes Of 'Giving-Way' Of The Ankle Joint, And What Shall We Further Investigate?, Filip Gertz Lysdal, Yuehang Wang, Eamonn Delahunt, Dominic Gehring, Kyle B. Kosik, Tron Krosshaug, Yumeng Li, Kam-Ming Mok, Kati Pasanen, Alexandria Remus, Masafumi Terada, Daniel T. P. Fong Feb 2022

What Have We Learnt From Quantitative Case Reports Of Acute Lateral Ankle Sprains Injuries And Episodes Of 'Giving-Way' Of The Ankle Joint, And What Shall We Further Investigate?, Filip Gertz Lysdal, Yuehang Wang, Eamonn Delahunt, Dominic Gehring, Kyle B. Kosik, Tron Krosshaug, Yumeng Li, Kam-Ming Mok, Kati Pasanen, Alexandria Remus, Masafumi Terada, Daniel T. P. Fong

Athletic Training and Clinical Nutrition Faculty Publications

Lateral ankle sprains are a commonly incurred injury in sports. They have a high recurrence rate and can lead to the development of persistent injury associated symptoms. We performed a quantitative synthesis of published case reports documenting the kinematics of acute lateral ankle sprains and episodes of ‘giving-way’ of the ankle joint to provide a comprehensive description of the mechanisms. A systematic literature search was conducted to screen records within MEDLINE® and EMBASE®. Additional strategies included manual search of specific journals, as well as contacting researchers in relevant communities to retrieve unpublished data. Twenty-four cases were included in the quantitative …


Angular Momentum In Skilled Kicking Pullover Performed By Elementary School Children, Yutaka Shimizu, Saburo Nishimura, Shoichi Matsushita Feb 2022

Angular Momentum In Skilled Kicking Pullover Performed By Elementary School Children, Yutaka Shimizu, Saburo Nishimura, Shoichi Matsushita

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 3: Issue 1, Article 2, 2022. This study aimed to clarify the differences in body positions and the role of the swing leg, support leg, and head-arm-trunk segment in generating and maintaining angular momentum of the whole body about a horizontal bar as well as how to improve the skill level of successful kicking pullover attempts. Two-dimensional kinematic parameters of successful kicking pullover attempts and body composition indices of 26 fifth-grade elementary school children were collected. Their techniques were classified into excellent and good groups based on the subjective evaluation of three evaluators. …


Velocity-Based Training: Current Concepts And Future Directions, Toby Brooks, Wil Fleming, Larry Munger, Katie Munger Feb 2022

Velocity-Based Training: Current Concepts And Future Directions, Toby Brooks, Wil Fleming, Larry Munger, Katie Munger

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology 3(1): Article 1, 2022. Velocity-based training (VBT) is a current approach to resistance training that relies on measured bar, implement, and/or athlete speed to formulate and adjust training for both long-term programming and daily training sessions. Relying on a number of available tools of varying levels of accuracy, VBT can help the strength and conditioning specialist and/or the rehabilitation professional to not only better predict strength and power over time, but also to adjust training loads in order to maximize training response in a given session. While the appeal and price points of available …


Effects Of A Demand-Valve Scuba Regulator On Cardiorespiratory Response During Submaximal Exercise Under Normobaric Conditions: A Preliminary Investigation, Christopher R. Kovacs Ph.D., Camille Dhom B.S. Feb 2022

Effects Of A Demand-Valve Scuba Regulator On Cardiorespiratory Response During Submaximal Exercise Under Normobaric Conditions: A Preliminary Investigation, Christopher R. Kovacs Ph.D., Camille Dhom B.S.

International Journal of Aquatic Research and Education

SCUBA diving fatalities are often related to cardiac events triggered by stress linked to equipment. The purpose of this investigation was to examine the effects of a SCUBA regulator on cardiorespiratory exercise at a submaximal workload. Ten participants (mean = 21.5 yrs; s.d. = 1.16) completed two submaximal exercise tests at 1 ATA; one while breathing normally and a second while breathing directly from a demand valve SCUBA regulator. Total time to test completion (TOT), heart rate (HR), blood pressure (BP), rating of perceived exertion (RPE), and arterial oxygen levels were all assessed. No significant differences between conditions were found …


Effect Of Water Depth On Heart Rate And Core Temperature During Underwater Treadmill Walking, Carrie E. Bajenski, Brianna R. Brandon, Cailey A. Curry, Leslie Fajardo, Ryan T. Conners Feb 2022

Effect Of Water Depth On Heart Rate And Core Temperature During Underwater Treadmill Walking, Carrie E. Bajenski, Brianna R. Brandon, Cailey A. Curry, Leslie Fajardo, Ryan T. Conners

International Journal of Aquatic Research and Education

Exercising using an underwater treadmill (UTM) has become a popular modality; however, few studies have focused on the physiological demands of UTM walking at varying water depths. Thus, the objective of this study was to investigate changes in heart rate (HR) and core temperature (CT) values in college-aged males and females while exercising at different water immersion depths using an UTM. Twenty participants (age = 21.50 ± 2.19 years; height = 169.04 ± 10.85cm; weight = 75.56 ± 22.28kg) walked at water depths of 10cm below the xiphoid process and at the level of the superior iliac crest (I.C.). Each …


Examining Youth Conceptualizations Of Water Safety Behaviors Among Participants In A Learn-To-Swim Program, Austin R. Anderson, Kristina R. Anderson, William D. Ramos, Angela K. Beale-Tawfeeq Feb 2022

Examining Youth Conceptualizations Of Water Safety Behaviors Among Participants In A Learn-To-Swim Program, Austin R. Anderson, Kristina R. Anderson, William D. Ramos, Angela K. Beale-Tawfeeq

International Journal of Aquatic Research and Education

Drowning represents a leading cause of unintentional deaths among children. Concomitantly, while formal swim instruction often incorporates water safety practices, the efficacy of these messages remains largely unexplored. This qualitative-based study sought to evaluate how youth apply learned water safety concepts when posed with a hypothetical aquatic scenario. Semi-structured interviews, augmented by use of a visual illustration prompt, were conducted with 29 participants of a youth Learn-to-Swim (LTS) program. Interviews assessed participants’ expressed water safety behaviors and were coded based on emergent themes. Findings indicated that most participants were able to identify a “struggling” swimmer in the dramatized illustration. When …


“It’S Up To Us:” Factors Influencing The Perspectives And Practices Of Instructors Working In An Out-Of-School Swimming Program For Underserved Children And Youth, Daniela M. Susnara, Matthew Curtner-Smith Feb 2022

“It’S Up To Us:” Factors Influencing The Perspectives And Practices Of Instructors Working In An Out-Of-School Swimming Program For Underserved Children And Youth, Daniela M. Susnara, Matthew Curtner-Smith

International Journal of Aquatic Research and Education

The purposes of this study were (a) to describe the perspectives and practices of instructors working in an out-of-school swimming program (OSSP) for underserved children and youth and (b) to examine the factors which shaped these perspectives and practices. The theoretical framework employed was occupational socialization. Two female instructors participated in the study. Five qualitative techniques were used to collect data and standard interpretive techniques were employed to analyze them. Key findings were that the instructors were highly skilled and had well-developed sets of beliefs about teaching swimming and working with disadvantaged children and youth. These perspectives and practices were …


Tactical Masters Athletes: Bmi Index Classifications, Marc Keefer, Joe Walsh, Kent Adams, Mike Climstein, Chad Harris, Mark Debeliso Feb 2022

Tactical Masters Athletes: Bmi Index Classifications, Marc Keefer, Joe Walsh, Kent Adams, Mike Climstein, Chad Harris, Mark Debeliso

All Faculty Scholarship for the College of Education and Professional Studies

Understanding the nexus between aging, physical activity, and obesity has been a source of ongoing investigation. A considerable amount of research has focused on Masters athletes in this regard, suggesting a beneficial relationship between Masters sport participation and a healthy body mass index (BMI). Some consider Active Duty military personnel as tactical athletes. As such, it is of interest to determine if aging Active Duty military personnel (or Masters Tactical Athletes) might have a similar BMI as other Masters athletes (MA). As such, this investigation examined previously recorded data of Active Duty Enlisted United States Marines (n = 402, male, …


Gut Microbiome And Metabolome Variations In Self-Identified Muscle Builders Who Report Using Protein Supplements, Lauri O. Byerley, Karyn M. Gallivan, Courtney J. Christopher, Christopher M. Taylor, Meng Luo, Scot E. Dowd, Gregory M. Davis, Hector F. Castro, Shawn R. Campagna, Kristin S. Ondrak Jan 2022

Gut Microbiome And Metabolome Variations In Self-Identified Muscle Builders Who Report Using Protein Supplements, Lauri O. Byerley, Karyn M. Gallivan, Courtney J. Christopher, Christopher M. Taylor, Meng Luo, Scot E. Dowd, Gregory M. Davis, Hector F. Castro, Shawn R. Campagna, Kristin S. Ondrak

School of Graduate Studies Faculty Publications

Muscle builders frequently consume protein supplements, but little is known about their effect on the gut microbiota. This study compared the gut microbiome and metabolome of selfidentified muscle builders who did or did not report consuming a protein supplement. Twenty-two participants (14 males and 8 females) consumed a protein supplement (PS), and seventeen participants (12 males and 5 females) did not (No PS). Participants provided a fecal sample and completed a 24-h food recall (ASA24). The PS group consumed significantly more protein (118 ± 12 g No PS vs. 169 ± 18 g PS, p = 0.02). Fecal metabolome and …


Eyes Save Lives Water Safety Program For Parents And Caregivers: Program Design And Pilot Evaluation From Southern California, Rachel Love-Smith, William A. Koon, Lauren Tabios, Scott M. Bartell Jan 2022

Eyes Save Lives Water Safety Program For Parents And Caregivers: Program Design And Pilot Evaluation From Southern California, Rachel Love-Smith, William A. Koon, Lauren Tabios, Scott M. Bartell

International Journal of Aquatic Research and Education

Despite expert consensus and evidence-based preventative strategies against drowning, limited formal study exists on translating recommendations into practical and effective interventions. This paper describes the design of an education-based drowning prevention intervention and reports results from a pilot evaluation of the program’s effect on self-reported water-safe behaviors, attitudes, self-efficacy, and knowledge. Parents and caregivers attending children’s swim lessons in July and August 2018 participated in a brief water-safety education program. A pre-post-test design evaluated "Theory of Planned Behavior" indicators to assess for changes. We found significant increases in scores related to water safety knowledge, attitudes on maintaining arms reach distance …


A Muscle Cell-Macrophage Axis Involving Matrix Metalloproteinase 14 Facilitates Extracellular Matrix Remodeling With Mechanical Loading, Bailey D. Peck, Kevin A. Murach, R. Grace Walton, Alexander J. Simmons, Douglas E. Long, Kate Kosmac, Cory M. Dungan, Philip A. Kern, Marcas M. Bamman, Charlotte A. Peterson Jan 2022

A Muscle Cell-Macrophage Axis Involving Matrix Metalloproteinase 14 Facilitates Extracellular Matrix Remodeling With Mechanical Loading, Bailey D. Peck, Kevin A. Murach, R. Grace Walton, Alexander J. Simmons, Douglas E. Long, Kate Kosmac, Cory M. Dungan, Philip A. Kern, Marcas M. Bamman, Charlotte A. Peterson

Center for Muscle Biology Faculty Publications

The extracellular matrix (ECM) in skeletal muscle plays an integral role in tissue development, structural support, and force transmission. For successful adaptation to mechanical loading, remodeling processes must occur. In a large cohort of older adults, transcriptomics revealed that genes involved in ECM remodeling, including matrix metalloproteinase 14 (MMP14), were the most upregulated following 14 weeks of progressive resistance exercise training (PRT). Using single-cell RNA-seq, we identified macrophages as a source of Mmp14 in muscle following a hypertrophic exercise stimulus in mice. In vitro contractile activity in myotubes revealed that the gene encoding cytokine leukemia inhibitory factor ( …


The Relationship Between The Population's Perception Of Herniated Intervertebral Disks And Their Known Physical Presentation, Jonah D. Gant Jan 2022

The Relationship Between The Population's Perception Of Herniated Intervertebral Disks And Their Known Physical Presentation, Jonah D. Gant

Honors Undergraduate Theses

The second most common lumbosacral diagnosis in the United States is a herniation or prolapse of the intervertebral disc. Individuals with herniated discs can have a wide variety of clinical presentations, ranging from asymptomatic to severe spinal cord compression and pain. Studies suggest that an individual’s pre-existing perception of a condition is likely to influence their course of recovery. Currently, perceptions the general public holds regarding the consequences of disc herniation is unknown. Therefore, the purpose of this study was to assess current views regarding disc herniations in the general population with their reported prevalence and clinical outcome. This was …


The Effects Of Body Tempering On Force Production, Flexibility And Muscle Soreness In Collegiate Football Athletes, Christopher B. Taber, Roy Colter, Jair J. Davis, Patrick A. Seweje, Dustin P. Wilson, Jonathan Z. Foster, Justin J. Merrigan Jan 2022

The Effects Of Body Tempering On Force Production, Flexibility And Muscle Soreness In Collegiate Football Athletes, Christopher B. Taber, Roy Colter, Jair J. Davis, Patrick A. Seweje, Dustin P. Wilson, Jonathan Z. Foster, Justin J. Merrigan

Exercise Science Faculty Publications

There has been limited research to explore the use of body tempering and when the use of this modality would be most appropriate. This study aimed to determine if a body tempering intervention would be appropriate pre-exercise by examining its effects on perceived soreness, range of motion (ROM), and force production compared to an intervention of traditional stretching. The subjects for this study were ten Division 1 (D1) football linemen from Sacred Heart University (Age: 19.9 ± 1.5 years, body mass: 130.9 ± 12.0 kg, height: 188.4 ± 5.1 cm, training age: 8.0 ± 3.5 years). Subjects participated in three …


Comparing Mean & Peak Barbell Velocity During Traditional And Accentuated Eccentric Loaded Back Squats, Zach S. Schroeder, Lauren K. Marshall, Lea C. Katanick, Brookelyn A. Campbell, Conor J. Cantwell, Christopher B. Taber, Timothy J. Suchomel Jan 2022

Comparing Mean & Peak Barbell Velocity During Traditional And Accentuated Eccentric Loaded Back Squats, Zach S. Schroeder, Lauren K. Marshall, Lea C. Katanick, Brookelyn A. Campbell, Conor J. Cantwell, Christopher B. Taber, Timothy J. Suchomel

Exercise Science Faculty Publications

MV: There were statistically significant main effects present for both condition (p = 0.002; g = 0.10-0.23) and load (p < 0.001; g = 0.95-3.93). However, the condition x time interaction effect was not statistically significant (p = 0.259). • PV: There were statistically significant main effects present for both condition (p = 0.016; g = 0.11-0.23) and load (p < 0.001; g = 0.42-1.6), but there was no statistically significant condition x time interaction effect (p = 0.101). • Post hoc analysis indicated that there was a significant difference between MV (p = 0.006) and PV (p = 0.032) between the traditional and 100% AEL conditions. • Moderate effect sizes were found with MV between the traditional and 100% AEL conditions at both 70% CON (g = 0.55) and 80% CON (g = 0.70). • No practically significant differences were found for PV.


Positive Motivational Self-Talk: The Influence Of Gender On Performance, Perception Of Self-Talk, And Performance Anxiety During A Disc Golf Putting Exercise Before And After A Self-Talk Intervention, Samantha L. Hennessy Jan 2022

Positive Motivational Self-Talk: The Influence Of Gender On Performance, Perception Of Self-Talk, And Performance Anxiety During A Disc Golf Putting Exercise Before And After A Self-Talk Intervention, Samantha L. Hennessy

EWU Masters Thesis Collection

No abstract provided.


The Interrelationship Between Treatment, Ethnicity, And Structured Exercise In Clinical Populations, Amanda M. F. Lopez Jan 2022

The Interrelationship Between Treatment, Ethnicity, And Structured Exercise In Clinical Populations, Amanda M. F. Lopez

University of the Pacific Theses and Dissertations

Cancer is the second leading cause of death, with about approximately 1.9 million Americans being diagnosed each year. Yet, it has high survival rates with the help of advancing treatments like radiation therapy. Cancer patients and survivors are contingent on experiencing a decline in physical functioning, quality of life, and physiological parameters. Treatment is effective and can prolong life expectancy but can be deleterious to a patient’s health. Parallel with cancer's impact on Americans is cardiovascular disease. Cardiovascular disease is responsible for 1 in 4 deaths. The development of cardiovascular disease is not spread accordantly among all ethnicities. Hispanics are …


Effects Of Various Golf Bag Loading Strategies On Perceived Exertion And Vertical Jump Performance, Austen Arnold Jan 2022

Effects Of Various Golf Bag Loading Strategies On Perceived Exertion And Vertical Jump Performance, Austen Arnold

Electronic Theses and Dissertations

INTRODUCTION: The sport of golf is increasing in popularity among both novice and skilled players alike. A round of golf necessitates players to cope with a range of physically demanding movement patterns. At the collegiate level, golfers must transport their clubs by loading them onto the body. Previous literature has yet to determine how different golf bag carrying positions influence periodic, unloaded jump performance and perceived exertion of the load carrying task. PURPOSE: The purpose of this study is to investigate how different golf bag load carriage methods may influence vertical jump performance and perceived exertion. METHODS: Five golf bag …


Impact Of Sleep And Training On Game Performance And Injury In Division-1 Women’S Basketball Amidst The Pandemic, Samah Senbel, S. Sharma, S. M. Raval, Christopher B. Taber, Julie K. Nolan, N. S. Artan, Diala Ezzeddine, Kaya Tolga Jan 2022

Impact Of Sleep And Training On Game Performance And Injury In Division-1 Women’S Basketball Amidst The Pandemic, Samah Senbel, S. Sharma, S. M. Raval, Christopher B. Taber, Julie K. Nolan, N. S. Artan, Diala Ezzeddine, Kaya Tolga

School of Computer Science & Engineering Faculty Publications

We investigated the impact of sleep and training load of Division - 1 women’s basketball players on their game performance and injury prediction using machine learning algorithms. The data was collected during a pandemic-condensed season with unpredictable interruptions to the games and athletic training schedules. We collected data from sleep monitoring devices, training data from coaches, injury reports from medical staff, and weekly survey data from athletes for 22 weeks.With proper data imputation, interpretable feature set, data balancing, and classifiers, we showed that we could predict game performance and injuries with more than 90% accuracy. More importantly, our F1 and …


Progression Through Return-To-Sport And Return-To-Academics Guidelines For Concussion Management And Recovery In Collegiate Student Athletes: Findings From The Ivy League–Big Ten Epidemiology Of Concussion Study, Douglas J. Wiebe, Abigail C. Bretzin, Bernadette A. D'Alonzo, Ivy League–Big Ten Epidemiology Of Concussion Study Investigators, Arthur C. Maerlender Jan 2022

Progression Through Return-To-Sport And Return-To-Academics Guidelines For Concussion Management And Recovery In Collegiate Student Athletes: Findings From The Ivy League–Big Ten Epidemiology Of Concussion Study, Douglas J. Wiebe, Abigail C. Bretzin, Bernadette A. D'Alonzo, Ivy League–Big Ten Epidemiology Of Concussion Study Investigators, Arthur C. Maerlender

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

Objective To examine the progression of collegiate student athletes through five stages of a return-to- activity protocol following sport-related concussion (SRC).

Methods In a multisite prospective cohort study, we identified the frequency of initial 24–48 hours physical and cognitive rest, and the sequence of (1) symptom resolution and return to (2) exertion activity, (3) limited sport, (4) full sport and (5) full academics. In resulting profiles we estimated the likelihood of return to full sport ≤14 days or prolonged >28 days and tested for variability based on timing of the stages.

Results Among 1715 athletes with SRC (31.6% females), 67.9% …


Head Impact Exposure In Youth And Collegiate American Football, Grace B. Choi, Eric P. Smith, Stefan M. Duma, Steven Rowson, Eamon Campolettano, Mireille E. Kelley, Derek A. Jones, Joel D. Stitzel, Jillian E. Urban, Amaris Genemaras, Jonathan G. Beckwith, Richard M. Greenwald, Arthur C. Maerlender, Joseph J. Crisco Jan 2022

Head Impact Exposure In Youth And Collegiate American Football, Grace B. Choi, Eric P. Smith, Stefan M. Duma, Steven Rowson, Eamon Campolettano, Mireille E. Kelley, Derek A. Jones, Joel D. Stitzel, Jillian E. Urban, Amaris Genemaras, Jonathan G. Beckwith, Richard M. Greenwald, Arthur C. Maerlender, Joseph J. Crisco

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

The relationship between head impact and subsequent brain injury for American football players is not well defined, especially for youth. The objective of this study is to quantify and assess Head Impact Exposure (HIE) metrics among youth and collegiate football players. This multiseason study enrolled 639 unique athletes (354 collegiate; 285 youth, ages 9–14), recording 476,209 head impacts (367,337 collegiate; 108,872 youth) over 971 sessions (480 collegiate; 491 youth). Youth players experienced 43 and 65% fewer impacts per competition and practice, respectively, and lower impact magnitudes compared to collegiate players (95th percentile peak linear acceleration (PLA, g) competition: 45.6 vs …


Constructing Neural Network Models From Brain Data Reveals Representational Transformations Linked To Adaptive Behavior, Takuya Ito, Guangyu Robert Yang, Patryk Laurent, Douglas H. Schultz, Michael W. Cole Jan 2022

Constructing Neural Network Models From Brain Data Reveals Representational Transformations Linked To Adaptive Behavior, Takuya Ito, Guangyu Robert Yang, Patryk Laurent, Douglas H. Schultz, Michael W. Cole

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

The human ability to adaptively implement a wide variety of tasks is thought to emerge from the dynamic transformation of cognitive information. We hypothesized that these transformations are implemented via conjunctive activations in “conjunction hubs”—brain regions that selectively integrate sensory, cognitive, and motor activations. We used recent advances in using functional connectivity to map the flow of activity between brain regions to construct a task-performing neural network model from fMRI data during a cognitive control task. We verified the importance of conjunction hubs in cognitive computations by simulating neural activity flow over this empirically-estimated functional connectivity model. These empiricallyspecified simulations …


Affective Flexibility As A Developmental Building Block Of Cognitive Reappraisal: An Fmri Study, Jordan E. Pierce, Eisha Haque, Maital Neta Jan 2022

Affective Flexibility As A Developmental Building Block Of Cognitive Reappraisal: An Fmri Study, Jordan E. Pierce, Eisha Haque, Maital Neta

Center for Brain, Biology, and Behavior: Faculty and Staff Publications

Cognitive reappraisal is a form of emotion regulation that involves reinterpreting the meaning of a stimulus, often to downregulate one’s negative affect. Reappraisal typically recruits distributed regions of prefrontal and parietal cortex to generate new appraisals and downregulate the emotional response in the amygdala. In the current study, we compared reappraisal ability in an fMRI task with affective flexibility in a sample of children and adolescents (ages 6–17, N = 76). Affective flexibility was defined as variability in valence interpretations of ambiguous (surprised) facial expressions from a second behavioral task. Results demonstrated that age and affective flexibility predicted reappraisal ability, …


Longitudinal Changes Of Cardiorespiratory Fitness Performance In High School: Association With Individual And School-Based Variables, Xihe Zhu, Justin A. Haegele, Jinting Shao, Summer Davis Jan 2022

Longitudinal Changes Of Cardiorespiratory Fitness Performance In High School: Association With Individual And School-Based Variables, Xihe Zhu, Justin A. Haegele, Jinting Shao, Summer Davis

Human Movement Sciences & Special Education Faculty Publications

This study aimed to model adolescents’ cardiorespiratory fitness performance change trajectories longitudinally across high school years and its relation to school- and individual/student-level factors. We employed hierarchical linear modeling to examine longitudinal cardiorespiratory fitness performance changes, as measured by the progressive aerobic capacity endurance run (PACER), over the years, between sexes, and in association with the school-level variables. Participants were 76,227 adolescents from 80 high schools in the mid-Atlantic region of the United States. School-level academic performance (SAP), the percent of students eligible for free and reduced-price meals (FARM), and physical education student-faculty ratio were obtained with permission from the …


The Correlation Between Acl Injury & Concussion, Brandon Michael Phillips Jan 2022

The Correlation Between Acl Injury & Concussion, Brandon Michael Phillips

Theses and Dissertations--Kinesiology and Health Promotion

Concussion (also known as mild traumatic brain injury) is a neurological injury that occurs after a blow to the head or neck area and can have affects to movement based on the severity of the injury. Mild traumatic brain injury has possible linkage to an increased risk of anterior cruciate ligament (ACL) injury. The purpose of this thesis was to assess the impact of prior concussion on lower extremity mechanics that are associated with risk of ACL injury. A total of 11 individuals with prior history of concussion and 11 healthy individuals without prior history of concussion (56.5 months since …