Biomechanics Commons^™

Head Depth And Head Speed During Competitive Backstroke Ledge Starts, Wesley J. Manz, Joel T. Greenshields, Brian V. Wright, Curtis S. Goss, Benjamin C. Skutnik, Joel M. Stager

International Journal of Aquatic Research and Education

Recently, a commercially available starting ‘ledge’ designed to reduce foot slippage during the execution of the backstroke start was introduced in competitive swimming. For the purpose of identifying potential safety consequences, the present study investigated the effect of ledge use on head depths, speeds, and distances in backstroke starts of athletes with no prior or only novice familiarity of the ledge. Competitive backstroke starts were performed with and without ledges by high school-aged (14.5 to 19.2 yr, N = 61) swimmers in 1.52 m of water during a closed testing session. A SIMI Reality Motion System in a calibrated space …

Development And Application Of New Methods For Magnetic Resonance Elastography Of The Brain, Charlotte Anne Guertler

McKelvey School of Engineering Graduate Student Theses & Dissertations

Accurate mechanical properties of the intact, living brain are essential for modeling traumatic brain injury (TBI). However, the properties of brain tissue in vivo have traditionally been measured in ex vivo samples. Magnetic resonance elastography (MRE) can be used to measure motion and estimate material properties of soft tissues in vivo, but MRE typically assumes tissue isotropy and homogeneity. The objective of this thesis is to improve MRE of soft tissue, like the brain, by developing and evaluating methods for in vivo estimation of heterogeneous, anisotropic properties. This was achieved through pursuit of the following aims: (1) quantifying the differences …

Introducing A Practitioner-Focused Publication In Exercise Science And Kinesiology, James W. Navalta, Scott Lyons, Whitley J. Stone

Topics in Exercise Science and Kinesiology

• The purpose is to introduce Topics in Exercise and Science Kinesiology (TESK) as an outlet for practical information.
• We searched available journals in the field to determine practitioner-focused options, we also determined the percentage of presented abstracts at a popular meeting compared to the number of published papers in a leading peer-reviewed scientific journal.
• Point of application 1: Only 2% of publication options in kinesiology or exercise science have a practitioner focus.
• Point of application 2: A relatively small number of peer-reviewed conference abstracts (less than 10%) are deemed publication-worthy following journal peer-review.
• Point of application 3: …

The Effects Of Anterior Cruciate Ligament Thickness, Knee Joint Laxity, Activity Level, Neuromuscular Imbalances And Lower Extremity Muscular Activation Patterns On Anterior Cruciate Ligament Loading, Zachary A. Sievert

Human Movement Studies & Special Education Theses & Dissertations

There are numerous known mechanisms of anterior cruciate ligament (ACL) injury risk that span from knee joint laxity to landing mechanics. However, the relationship of these mechanisms to ACL loading during landing is unclear. In addition to landing mechanics, anthropological aspects such as ACL diameter, which can now be obtained via ultrasound, may also be an important mechanism for ACL loading. However, the relationship between ACL diameter to ACL loading and landing mechanics remains unknown. This study was conducted with three primary purposes. The first purpose of this study was to examine the inter and intra-rater reliability of using ultrasound …

The Influence Of Strength In Load-Velocity Relationships In The Back Squat, Thaddeus Light

Electronic Theses and Dissertations

Load-velocity relationships may vary between people of different strength levels and across different loads. The purpose of this dissertation was to investigate how external loads influence the velocity characteristics of the back squat exercise, and the influence of strength on these variables. Healthy male students with a history of resistance training completed repetitions at specified intensities of their estimated one-repetition maximum (1RM) until they reached 1RM. Back squat 3D motion analysis was captured using four Vicon T010 cameras (Vicon Motion Systems Ltd.; Oxford, UK) and Vicon Nexus 1.8.5 software. Data were transported into R custom coding statistical analysis software (version …

Barbell Trajectory And Kinematics During Two International Weightlifting Championships, Aaron J. Cunanan

Electronic Theses and Dissertations

Several methods have been used in the scientific literature to study the weightlifting pull. Broadly, these methods are used to measure kinematic or kinetic variables exhibited by the lifter, the barbell, or the lifter-barbell system. However, there is an apparent disconnect between weightlifting research and coaching practice that may reduce the perceived benefits of technique analysis among coaches and present some challenges for coaches who seek to incorporate technique analysis into their coaching practice. Differences and trends in the technique of competitive weightlifting performances are apparent from the available literature. However, there are also gaps in the literature due to …

Locomotor Patterns Change Over Time During Walking On An Uneven Surface, Jenny A. Kent, Joel H. Sommerfeld, Mukul Mukherjee, Kota Z. Takahashi, Nicholas Stergiou

Journal Articles

During walking, uneven surfaces impose new demands for controlling balance and forward progression at each step. It is unknown to what extent walking may be refined given an amount of stride-to-stride unpredictability at the distal level. Here, we explored the effects of an uneven terrain surface on whole-body locomotor dynamics immediately following exposure and after a familiarization period. Eleven young, unimpaired adults walked for 12 min on flat and uneven terrain treadmills. The whole-body center of mass excursion range (COM_exc) and peak velocity (COM_vel), step length and width were estimated. On first exposure to uneven terrain, …

Clinging In Plethodontid Salamanders, Mary Kathleen O'Donnell

USF Tampa Graduate Theses and Dissertations

The ability to cling to and climb on inclined, vertical, and inverted surfaces gives animals access to additional shelter and food and may provide refuge from unsuitable temperature and moisture conditions or escape from ground-dwelling predators. Salamanders have been shown to cling to surfaces and engage in climbing behavior, but their maximum clinging capability and mechanisms of attachment are not well understood. While some arboreal salamanders possess prehensile tails, salamanders lack many morphological adaptations for attachment, such as claws, toe pads, and fibrillar adhesive pads. Maximum cling performance and surface area of attachment were measured, and the adhesive capability of …

Using A Mobile Application To Assess Knee Valgus In Healthy And Post-Anterior Cruciate Ligament Reconstruction Participants, Kai-Yu Ho, Brenda Benson Deaver, Tyrel Nelson, Catherine Turner

Physical Therapy Faculty Research

Context: Popularity of using handheld devices in clinical settings has increased, especially the use of motion analysis applications (MAAs). Video-based measurement tools have been found reliable in measuring knee valgus in subjects without anterior cruciate ligament (ACL) injury. However, there is a need for validation of using a MAA to measure knee valgus in an injured population, given that they may exhibit higher degrees of knee valgus. Objective: To examine the reliability and validity of using a MAA to measure knee valgus during functional activities used to assess return to sport after ACL reconstruction (ACLR). Design: Reliability and validity study. …

The Foot And Ankle Structures Reveal Emergent Properties Analogous To Passive Springs During Human Walking, Erica Hedrick, Steven J. Stanhope, Kota Z. Takahashi

Journal Articles

An objective understanding of human foot and ankle function can drive innovations of bio-inspired wearable devices. Specifically, knowledge regarding how mechanical force and work are produced within the human foot-ankle structures can help determine what type of materials or components are required to engineer devices. In this study, we characterized the combined functions of the foot and ankle structures during walking by synthesizing the total force, displacement, and work profiles from structures distal to the shank. Eleven healthy adults walked at four scaled speeds. We quantified the ground reaction force and center-of-pressure displacement in the shank’s coordinate system during stance …

Alterations In Cortical Activation Among Individuals With Chronic Ankle Instability During Single-Limb Postural Control, Adam Rosen, Jennifer M. Yentes, Melanie L. Mcgrath, Arthur C. Maerlender, Sara A. Myers, Mukul Mukherjee

Journal Articles

Context

Chronic ankle instability (CAI) is characterized by repetitive ankle sprains and perceived instability. Whereas the underlying cause of CAI is disputed, alterations in cortical motor functioning may contribute to the perceived dysfunction.

Objective

To assess differences in cortical activity during single-limb stance among control, coper, and CAI groups.

Design

Cross-sectional study.

Setting

Biomechanics laboratory.

Patients or Other Participants

A total of 31 individuals (10 men, 21 women; age = 22.3 ± 2.4 years, height = 169.6 ± 9.7 cm, mass = 70.6 ± 11.6 kg), who were classified into control (n = 13), coper (n = 7), and CAI …

Improved Orthopaedic Repairs Through Mechanically Optimized, Adhesive Biomaterials, Stephen Wheeler Linderman

McKelvey School of Engineering Graduate Student Theses & Dissertations

Despite countless surgical advances over the last several decades refining surgical approaches, repair techniques, and tools to treat tendon and tendon-to-bone injuries, we are still left with repair solutions that rely on fairly crude underlying mechanical principles. Musculoskeletal soft tissues have evolved to transfer high loads by optimizing stress distribution profiles across the tissue at each length scale. However, instead of mimicking these natural load transfer mechanisms, conventional suture approaches are limited by high load transfer across only a small number of anchor points within tissue. This leads to stress concentrations at anchor points that often cause repair failure as …

Letter From President-Elect, Brian Huck

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

The JSMAHS is proud to present Volume 5 Issue 1 of the journal. This issue comes in conjunction with the OATA Annual Symposium and Meeting Poster Presentations. Please enjoy this innovative research and letter from your President-Elect, Brian Huck.

Surgical Interventions For The Treatment Of Chiari Malformation Type I, Noah Pennypacker

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Collegiate Football Athlete Presents With Nontraditional Case Of Rhabdomyolysis And Secondary Finding Of Ureterocele, Kelly Ferian, Dane Eberle, Jake Woodruff, Elizabeth Walters, Karyn Gentile, Tricia Hamad

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Socialization Into Athletic Training Student Leadership, Rachel Reinhart, Erika Smith-Goodwin

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

The Presence Of Cross Education Within The Body- An Evaluation Of Contralateral Grip Strength, Taylor E. Priest, Erika Smith-Goodwin, J. Brett Massie

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

A College Athlete's Return From Severe Aplastic Anemia, Cole Miller, Alex Walker

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Healthcare Satisfaction Of Sexual Minority Athletes In The Athletic Training Setting, Sarah Nance, Kristine Ensign

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Magnetic Resonance Imaging Of The Effects Of An Ice Bag Treatment On Peroneal Artery Diameter, Alessandra Poirier, Dustin Grooms, Janet Simon, Chad Starkey

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

This research was funded by an OATA Research Grant

Thank you for viewing this 5^th Annual OATA Special Edition.

Effects Of Vibration Plates On Postural Instability Of Healthy Individuals, Anthony Wene, Dustin Grooms, Jeffrey A. Russell

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

This research was funded by an OATA Research Grant

Thank you for viewing this 5^th Annual OATA Special Edition.

Change In Concussion Knowledge And Attitudes From Pre To Post Season In Sports, Lauren Dolick, Janet E. Simon Ohio University, Laura Harris

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Employer Perceptions Of Newly Credentialed Athletic Trainers As They Transition To Practice, Samantha Compton, Janet Simon, Laura L. Harris

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Exploratory Analysis Of Atheltic Trianers Self-Reported Leadership Identity, Sara Stiltner, Elizabeth Walters

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition.

Inter-Rater Agreement Of A Functional Dual-Task Test Developed For The Assessment Of Sports Related Concussions, Christopher J. Ballance, Maria Talarico, James Onate

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

This research was funded by an OATA Research Grant

Thank you for viewing this 5^th Annual OATA Special Edition.

An Investigation Of School Socioeconomic Staus On Adolescent Athletes' Baseline And Post-Injury Concussion Assessments, Jennifer L. Werner, Matthew Propst, Christy Reed, Tim Foster, Kelsey Logan, Adam W. Keifer, Paul Gubanich

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5^th Annual OATA Special Edition

Differences In Static Postural Control Performance Between Athletes Who Are Hearing And Athletes Who Are Deaf Or Hard-Of-Hearing, Matthew P. Brancaleone, Maria K. Talarcio, Laura C. Boucher, James A. Onate

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

This research was funded by an OATA Research Grant

Thank you for viewing this 5^th Annual OATA Special Edition.

Its Skin Is My Skin, Bryan Page

Graduate School of Art Theses

This text examines the complexity of attempting to empathize with bodies that are vastly othered from my own. This broad yet nuanced subject crosses epistemological boundaries and complicates the dualities between both the mind and body, and between the corporeal and the virtual. My desire to better understand the conditions of another’s experience originates from a painful traumatic loss which caused me to feel isolated and incomplete. In response to this suffering, I long to emotionally connect with other beings and create artwork that attempts to bridge the qualia of individual experience.

I am interested in the capacity (or lack …

Food Traceability In School Foodservice Operations: Benefits And Challenges, Basem Boutros, Kevin Roberts, Naiqing Lin, Kevin Sauer

Health and Sport Science Faculty Publications

Purpose/Objectives: This study explored food traceability systems in school foodservice in the United States and the potential benefits and challenges to their implementation.

Methods: An online questionnaire was developed and used to collect data. A mixed-mode approach was followed to recruit the participants. A convenience sample of 500 school nutrition professionals from Qualtrics panel was targeted for data collection with the goal of having responses from 300 participants. Due to low response rate from the initial panel, the contact information of a second convenience sample of 200 child nutrition professionals with no geographic representation was obtained from the National Center …

Comparative Plasma Proteomics In Muscle Atrophy Induced By Cancer Cachexia And Hindlimb Unloading, Kirsten Rene Dunlap

Graduate Theses and Dissertations

Introduction: Muscle atrophy results from a dysfunction in protein turnover that leads to loss of mass and function and occurs concurrently with multiple pathologies such as cancer and extended bed rest. Atrophy reduces overall quality of life while increasing morbidity and mortality. Currently, efficacious therapeutic interventions to treat and prevent muscle wasting in all its forms are lacking, however if conserved mechanisms can be identified between wasting conditions, this would aid in the development of multipurpose therapeutics to ameliorate this pathology. Purpose: To examine circulating factors present across atrophic pathologies. Methods: 35 male C57BL/6J mice were assigned to hindlimb unloading …