Sports Sciences Commons^™

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 …

Pre- And Post-Season Physical And Cognitive Testing Of College Athletes Susceptible To The Effects Of Concussion, Audrey Berning, Elsa Klump, Hannah Burkhart, Jeneca Thomas, Stephanie Cahill

Student-Faculty Research - College of Physical Therapy

No abstract provided.

Psychological Factors That Impact The Drop-Out Rate In Adolescent Sports, Nicole S. Mcclone

HIM 1990-2015

Children are dropping out of sport at alarming rates. With the highest numbers of dropout occurring between the ages of ten and seventeen, the focus of this research is on the drop-out rates of adolescents from sport. Athletic participation has been linked to positive academic performance, key development of leadership skills, and increased engagement in the community. The research that has been conducted related to sport persistence has had a greater focus on examining factors related to the physical domain. Attention is now beginning to shift however, and researchers are looking outside the physical domain and analyzing sport attrition more …

Analysis Of Changes In Muscle Architecture And Explosive Ability In Ncaa Division I Volleyball Players, Caleb D. Bazyler, Jacob R. Goodin, Conrad Rapp, Mark Disanto, Frank Smith, Michael H. Stone

ETSU Faculty Works

Abstract available in the 10th Annual Coaches and Sport Science College .

Application Of Principal Components Analysis In Kinetics Study For Isometric Squat, Junshi Liu, Caleb D. Bazyler, Christopher B. Taber, Tony Pustina, Satoshi Mizuguchi

ETSU Faculty Works

Abstract available in the 10th Annual Coaches and Sport Science College .

The Relationship Between Pass Completion Percentage And Perceived Player Workload In Ncaa Division I Women's Soccer, Alexa L. Passingham

Undergraduate Honors Theses

In an attempt to demonstrate the interconnecting nature of the pillars of sport (Hacker, 2000) this thesis explores the relationship between physical, psychological and technical variables. Five National Collegiate Athletic Association (NCAA) Division I Women’s Soccer players were analyzed in four conference matches. The athlete's rate of perceived exertion (RPE) values were correlated to pass completion percentages (PC%) to investigate the potential effect that psychological satisfaction or dissatisfaction of technical performance has on perceived exertion ratings. PlayerLoad^TM (PL) values, gathered through the utilization of a Catapult Minimax S4 GPS device (miniMax-10 Hz, Catapult Innovations, Melbourne, Australia), were used as …

Countermovement Jump Performance Changes Over The Course Of Collegiate Basketball Pre-Season Associated With Block Periodization Model Of Strength And Conditioning Program, Nobuhisa Yoshida, Caleb D. Bazyler, Takahiro Unebasami, Stephen Wells, Zachary Whitman, Danielle Lee, Mallory Stellhorn, Kimitake Sato, Michael H. Stone

ETSU Faculty Works

No abstract provided.

Effects Of Preventative Ankle Taping On Planned Change-Of-Direction And Reactive Agility Performance And Ankle Muscle Activity In Basketballers, Matthew D. Jeffriess, Adrian B. Schultz, Tye S. Mcgann, Samuel J. Callaghan, Robert G. Lockie

Research outputs 2014 to 2021

This study investigated the effects of preventative ankle taping on planned change-of-direction and reactive agility performance and peak ankle muscle activity in basketballers. Twenty male basketballers (age = 22.30 ± 3.97 years; height = 1.84 ± 0.09 meters; body mass = 85.96 ± 11.88 kilograms) with no ankle pathologies attended two testing sessions. Within each session, subjects completed six planned and six reactive randomized trials (three to the left and three to the right for each condition) of the Y-shaped agility test, which was recorded by timing lights. In one session, subjects had both ankles un-taped. In the other, both …

Investigating The Influences Of Language Delay And/Or Familial Risk For Dyslexia On Brain Structure In 5-Year-Olds, Nora Maria Raschle, Bryce Larkin Chessell Becker, Sara Smith, Lynn Valérie Fehlbaum, Yingying Wang, Nadine Gaab

Center for Brain, Biology, and Behavior: Faculty Publications

Early language delay has often been associated with atypical language/literacy development. Neuroimaging studies further indicate functional disruptions during language and print processing in school-age children with a retrospective report of early language delay. Behavioral data of 114 5-year-olds with a retrospective report of early language delay in infancy (N = 34) and those without (N = 80) and with a familial risk for dyslexia and those without are presented. Behaviorally, children with a retrospective report of early language delay exhibited reduced performance in language/reading-related measures. A voxel-based morphometry analysis in a subset (N = 46) demonstrated an association between reduced …

Herbs, Supplements And Athletes, Neilson Mathews Md

Department of Family Medicine

No abstract provided.

Comparison Of Knee Moments And Landing Patterns During A Lateral Cutting Maneuver: Shod Vs. Barefoot, Brianna A. Bisesti, Michael A. Lawrence, Alexander J. Koch, Lara A. Carlson

Athletic Training Student Publications

Non-contact anterior cruciate ligament (ACL) injuries often occur during lateral cutting maneuvers where extension, adduction, and external rotation create high loads on the ACL. The aim of this study was to examine knee moments and foot strike patterns during lateral cutting while shod (SD) and barefoot (BF). Fifteen NCAA Division III athletes (7 female and 8 male; age 20.2 ± 1.5 yr; mass 71.5 ± 11.3 kg; height, 1.7 ± .06 m) without lower limb pathologies were analyzed during 5 trials of 45 degree lateral cutting maneuvers for each limb in both BF and SD conditions with the approach speed …

Biomechanical Investigation Of Elite Place-Kicking, Chase M. Pfeifer

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Many studies aim to understand the fundamentals of kicking commonly displayed by soccer players [4,6,10,16,17,18,24,25,28,29,30,34,36,38,40]. Of those studies, most are limited to a two-dimensional (2D) analysis using high-speed cameras for position tracking or utilizing electromyography to observe the activity of select muscles [4,6,18,25,29,36]. The few studies that investigate kicking using a three-dimensional (3D) model are limited in their position tracking capabilities and focus mainly on joint flexion potentials and foot speed.

This dissertation is a comprehensive biomechanical analysis (kinematic and EMG) of the field-goal place-kicking techniques of four elite kickers in American football. Data were compared and contrasted with ball …

Physical Characteristics Used To Predict Pole Vault Performance, Cody Bradly Michael Doerflein

Student Theses and Dissertations

PURPOSE: The purpose of this study was to identify specific physical characteristics of pole vaulters as they correspond to performance in the event. It was hypothesized that not only speed would correspond to performance, but skill and strength as well. METHODS: Twenty-three athletes were measured on six key physical assessments across one to two days. These assessments include a flying 15 m sprint, 1 RM back squat, backwards rollover to clearance, six-step straight pole drill for grip height, timed three m rope climb, and vertical jump. A multiple regression was used with pole vault performance as the criterion variable and …

A Comparison Of Static Stretching Versus Combined Static And Ballistic Stretching In Active Knee Range Of Motion, Nathan R. Blackhurst, James C. Peterson, Valerie W. Herzog, Ericka P. Zimmerman

Internet Journal of Allied Health Sciences and Practice

Background: There is continued controversy related to flexibility gains from different stretching protocols and within single protocols. Stretching methods include static, ballistic, dynamic, and proprioceptive neuromuscular facilitation (PNF). A combination of stretching methods may be an improved way to increase active knee range of motion (ROM). This study evaluated a single program formulated with static and ballistic components. Objective: To compare active knee ROM following stretching programs which either included combined static and ballistic stretching (CSBS) or static stretching (SS) alone. It was hypothesized that CSBS would show a greater increase in active knee ROM than SS. Setting …

Distal Insertional Footprint Of The Brachialis Muscle: 3d Morphometric Study, Srinath Kamineni, Abdo Bachoura, William Behrens, Ellora Kamineni, Andrew Deane

Orthopaedic Surgery and Sports Medicine Faculty Publications

Objective. The purpose of this study is to describe the three-dimensional morphometry of the brachialis muscle at its distal attachment to the ulna. Methods. Fifty cadaveric elbows were dissected and the brachialis distal insertion was isolated on the ulna bone and probed with a three-dimensional digitizer, to create a three-dimensional model of the footprint. Measurements and analysis of each footprint shape were recorded and compared based on gender and size. Results. There was significant gender difference in the surface length (P = 0.002) and projected length (P = 0.001) of the brachialis footprint. The shapes …

Psychometric Properties Of The Abbreviated Perceived Motivational Climate In Exercise Questionnaire, E. Whitney G. Moore, Theresa C. Brown, Mary D. Fry

Kinesiology, Health and Sport Studies

The purpose of this study was to develop an abbreviated version of the Perceived Motivational Climate in Exercise Questionnaire (PMCEQ-A) to provide a more practical instrument for use in applied exercise settings. In the calibration step, 2 shortened versions’ measurement and latent model values were compared to each other and the original PMCEQ using a 3-group CFA invariance testing approach with previously collected exercise setting data (N = 5,427). Based on the model fit and reliability values, the 12-item version performed better than the 17-item version. The resultant 12-item PMCEQ-A’s CFA model estimates were then compared to the PMCEQ’s model …

Breast Cancer Rehabilitation: Clinical Examination And Outcomes Assessment, Nicole L. Stout, Shana Harrington, Lucinda Pfalzer, Mary Insana Fisher

Physical Therapy Faculty Publications

Breast cancer is the most commonly diagnosed cancer in women in the United States. The treatment for breast cancer occurs along a protracted time period and includes many different disease treatment modalities. These treatments carry with them a large number of adverse effects that negatively impact function in both the short term and long term. It is necessary for rehabilitation providers to interface with patients being treated for breast cancer throughout the continuum of care so that interval assessments can be conducted to identify emerging impairments and alleviate disability. To achieve this, the rehabilitation provider must have an understanding of …

Pertinacity Issue 1 Volume 2, Yuri Hosokawa

Pertinacity

No abstract provided.

Hss Advocate Alumni News Fall 2015, Department Of Health And Sport Sciences

Health and Sport Sciences Newsletter

• HSS Gets a New Facility!
• Hunger Heros 5K
• Alumna Wins Award for Share Bac A Pac Efforts
• Paul Longnecker Wins Edgar Hayhow Award
• A Message from the Chair by Dr. Joan Rocks

Hss Advocate Departmental Fall 2015, Department Of Health And Sport Sciences

Health and Sport Sciences Newsletter

• HSS Gets a New Facility!
• 1st Annual Pumpkin Carving Contest
• Student (Grant Seredick) Wins Prestigious Award