Sports Sciences Commons^™

Effect Of Eurycoma Longifolia And Eccentric Exercise On Quadriceps Strength In Elite Rugby Player, Ahmad Zawawi Zakaria

Student Works (2020-2029)

Optimizing performance by resistance training over a limited amount of time was imperative in a training year plan. Superior effect of eccentric training has been documented but less known its influence on elite athletes which incorporated submaximal and supramaximal intensity eccentric that was essential for muscle strength and hypertrophy. Correspondingly, Eurycoma longifolia Jack (ElJ) supplementation has been shown to stimulate the production of the non-prohibited androgenic hormones, which was important for athletic performance in terms of muscular strength and size. However, investigation was not sufficiently vigorous on such effect of a supplement in elite athletes. Therefore, the major aim of …

Development Of A Field Expedient Screening Tool For The Coach To Identify Musculoskeletal Risk Factors In Baseball Players, Kyle Andrew Matsel

Theses and Dissertations--Rehabilitation Sciences

Identification of musculoskeletal (MSK) injury risk factors in baseball players can be challenging particularly for youth and high school coaches. Many baseball coaches lack a sports medicine and/or strength and conditioning staff to assist with injury prevention initiatives. Given the extensive responsibilities in managing the team and preparing the players for athletic competition, little time remains to focus on injury prevention and arm care programs. Furthermore, assessment, diagnosis, and management of MSK impairments is outside the scope of practice and expertise of baseball coaches. However, educating and empowering the coach to efficiently screen their players for potentially injury producing MSK …

Comparison Of Sport Performance Outcomes In Young Athletes Receiving Hamstring Autograft And Patellar Tendon Autograft For Anterior Cruciate Ligament (Acl) Reconstruction Surgery, Allison Kell

Capstone Showcase

Introduction: ACL rupture is an extremely common injury among athletes of various sports. There are multiple different grafts that can be used in ACL reconstruction surgery. Two forms of graft that are most often considered in the case of ACL reconstruction are the hamstring tendon (HT) autograft and patellar tendon (PT) autograft. Many orthopedic providers have conflicting views regarding which of the two is the ideal graft. There are varying findings comparing the HT and PT, with many parameters to consider when predicting overall outcome. Oftentimes athletes who experience an ACL rupture are young and desire to return to sport …

Wearing Knee Sleeves During Back Squats Does Not Improve Mass Lifted Or Affect Knee Biomechanics, Hunter J. Bennett, Alexandria Trypuc, Kevin A. Valenzuela, Zachary A. Sievert

Human Movement Studies & Special Education Faculty Publications

Purpose:
Knee sleeves have become widely popular in the exercise realm, especially for knee support during back squats. Knee sleeves are successful in providing frontal plane knee support during functional tasks, but have not been investigated in back squats. Knee wraps, a somewhat similar elastic material, provide elastic energy that increases weight lifted during back squats. Thus, it is possible the thick neoprene knee sleeves could prove advantageous for back squats. The purpose of this study was to examine the effects of knee sleeves on weight lifted, knee biomechanics, and muscle activations during back squats.

Methods:
Fifteen resistance trained men …

The Role Mentoring Plays In The Transition To Practice Of Newly Credentialed Athletic Trainers, Stacy E. Walker, Stephanie Mazerolle Singe, Julie M. Cavallario

Rehabilitation Sciences Faculty Publications

Context: Mentoring has been identified as an important method of supporting newly credentialed athletic trainers (ATs) during their transition to practice. Gaining a better understanding of this relationship could provide valuable insights that may assist employers and professional programs in developing a plan to better facilitate the transition.

Objective: To examine which aspects of the mentoring relationship provided the most benefit during the transition to practice of newly certified ATs.

Design: Qualitative study.

Setting: Individual phone interviews.

Patients or Other Participants: A total of 13 ATs who graduated from a professional master's program, were certified from February through July 2016, …

Implementing Skill Acquisition Research In High Performance Sport: Reflecting On The Importance Of Autonomy-Support For Successful Collaboration, Khaya Morris-Binelli, Sean Müller, Fleur E.C.A. Van Rens, Dave Staniforth, Brendyn Appleby, Simon M. Rosalie

Physiotherapy Papers and Journal Articles

Perceptual-cognitive-motor skills, such as visual anticipation, are pivotal for superior performance in sport. However, there are only a limited number of skill acquisition specialists working with coaches to develop these skills in athletes. The purpose of this paper is to present a brief reflection on the use of psychological strategies to create an autonomy-supportive environment to embed a skill acquisition research project in high-performance sport. The research project was conducted with the Australian national field hockey high-performance unit and investigated individual differences in expert goalkeepers’ visual anticipation. The paper first discusses the role of a skill acquisition specialist, how they …

The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons

College of Graduate Studies: Theses & Dissertations

Context: Mirrors are common-place in exercise facilities, however, the effect the mirror has on cognitive strategy (i.e., where the mind’s at) and performance time has not been examined in a muscular endurance task (i.e., a wall sit). Objective: To determine, (1) the mirror’s effect on cognitive state during a wall sit to volitional exhaustion, (2) the mirror's effect on time to volitional exhaustion during a wall sit, and (3) the mirror’s effect on the participant’s rating of perceived exertion (RPE) during the wall sit. Design: Repeated measures design. Setting: Indoor exercise facility. Participants: Twenty resistance-trained Georgia Southern University Students (9 …

Lower-Limb Injury In Elite Australian Football: A Narrative Review Of Kinanthropometric And Physical Risk Factors, Callum J. Mccaskie, Marc Sim, Robert U. Newton, Nicolas H. Hart

Research outputs 2014 to 2021

Objective

This review aims to provide a succinct and critical analysis of the current physical and mechanical demands of elite Australian football while examining lower-limb injury and the associated physical and kinanthropometric risk factors.

Methods

MEDLINE, PubMed, Web of Science and SPORTSDiscus electronic databases were searched for studies that investigated the playing demands, injury trends, and physical and kinanthropometric injury risk factors of elite Australian football. Articles from similar team sports including soccer and rugby (union and league) were also included.

Results

While the physical demands of elite AF have steadied over the past decade, injury rates continue to rise …

Machine Learning To Predict Sports-Related Concussion Recovery Using Clinical Data, Yan Chu, Gregory Knell, Riley P. Brayton, Scott O. Burkhart, Xiaoqian Jiang, Shayan Shams

Faculty Publications - Doctor of Psychology (PsyD) Program

Objectives: Sport-related concussions (SRCs) are a concern for high school athletes. Understanding factors contributing to SRC recovery time may improve clinical management. However, the complexity of the many clinical measures of concussion data precludes many traditional methods. This study aimed to answer the question, what is the utility of modeling clinical concussion data using machine-learning algorithms for pre- dicting SRC recovery time and protracted recovery? Methods: This was a retrospective case series of participants aged 8 to 18 years with a diagnosis of SRC. A 6- part measure was administered to assess pre-injury risk factors, initial injury severity, and post-concussion …

Physical Examination Findings In Patients With Protracted Concussion And The Impact Of An Integrative Concussion Rehabilitation Protocol, Lauren Ziaks, Chelsea Brown, Maura Iversen

Internet Journal of Allied Health Sciences and Practice

Purpose: To describe physical examination (PE) findings of individuals with protracted concussion recovery and evaluate an integrated primitive reflex (PR) disinhibition, vision, and vestibular rehabilitation intervention. Method: Retrospective study of 82 patients with protracted concussion (60.98% female) who received ≥ 2 phases of treatment. Following a baseline PE, patients completed the Post-Concussion Symptom Survey (PCSS), Activities-Based Balance Confidence Questionnaire (ABC), Dizziness Handicap Index (DHI), and Acquired Traumatic Brain Injury (aTBI) Vision Questionnaire. A subset of patients (Group 1), completed a final PE and second questionnaire administration. Descriptive statistics characterized the sample. T-tests and Wilcoxon rank sum tests compared characteristics of …

The Effects Of Blood-Flow Restriction Training On Muscle Hypertrophy, Strength, And Power In College-Age Adults, Meghan Rohde, Lauren Bacsalmasi, Quinton Erhard, Tanner Lung, Whitney Weinert

Internet Journal of Allied Health Sciences and Practice

Purpose: Low load BFR (LLBFR) training can produce similar strength gains as high load resistance (HLR) training, especially in cases where persons may not have the ability to toelrate heavy loads. The purpose of this study was to compare changes in strength, power, and hypertrophy between HLR (70% 1RM) and LLBFR (30% 1RM). Methods: Sixteen healthy individuals, ages 23-21 (8 male, 8 female) were randomized into HLR and LLBFR groups. Obtained baseline measurements included 1-repetition maximum (1RM), thigh circumference, and vertical jump height. Each group performed back squat, Bulgarian split squat, barbell step ups, and lunges. The HL group trend …

Employability In Academe For Athletic Trainers With The Doctor Of Athletic Training Degree, Bonnie L. Van Lunen, Stephanie H. Clines, Tyler Reems, Lindsey E. Eberman, Dorice A. Hankemeier, Cailee E. Welch

Rehabilitation Sciences Faculty Publications

The doctor of athletic training (DAT) degree has recently been introduced into academe. Limited literature exists regarding how individuals with this degree can become part of an athletic training faculty. To identify department chairs' perceptions of the DAT degree and determine whether they viewed the degree as viable when hiring new faculty within a postbaccalaureate professional athletic training program. Cross-sectional study. Online survey instrument. A total of 376 department chairs who had oversight of Commission on Accreditation of Athletic Training Education athletic training programs were invited to participate. Of these, 190 individuals (50.5%) accessed the survey, and 151 of the …

Return-To-Play And Competitive Outcomes After Ulnar Collateral Ligament Reconstruction Among Baseball Players: A Systematic Review, Stephen J. Thomas, Ryan W. Paul, Adam B. Rosen, Sam J. Wilkins, Joseph Scheidt, John D. Kelly Iv, Ryan L. Crotin

Department of Exercise Science Faculty Papers

Background: Ulnar collateral ligament (UCL) reconstruction (UCLR) is very common in baseball. However, no review has compared the return-to-play (RTP) and in-game performance statistics of pitchers after primary and revision UCLR as well as of position players after UCLR.

Purpose: To review, synthesize, and evaluate the published literature on outcomes after UCLR in baseball players to determine RTP and competitive outcomes among various populations of baseball players.

Study Design: Systematic review; Level of evidence, 4.

Methods: A literature search including studies between 1980 and November 4, 2019, was conducted for articles that included the following terms: ulnar collateral ligament, elbow, …

Diagnostic Accuracy Of Mcmurry’S Test In The Diagnosis Of Meniscal Tears, Jessica Smyth, Hartwell Rainey

Physician Assistant Capstones, 2020-current

No abstract provided.

Sex Differences In Fatigability Following Exercise Normalised To The Power–Duration Relationship, Paul Ansdell, Jacob Skarabot, Elliott Atkinson, Sarah Corden, Amber Tygart, Kristy M. Hicks, Kevin Thomas, Sandra K. Hunter, Glyn Howatson, Stuart Goodall

Exercise Science Faculty Research and Publications

Due to morphological differences, females demonstrate greater fatigue resistance of locomotor muscle during single-limb and whole-body exercise modalities. Whilst females sustain a greater relative intensity of single-limb, isometric exercise than males, limited investigation has been performed during whole-body exercise. Accordingly, this study established the power–duration relationship during cycling in 18 trained participants (eight females). Subsequently, constant-load exercise was performed at critical power (CP)-matched intensities within the heavy and severe domains, with the mechanisms of fatigability assessed via non-invasive neurostimulation, near-infrared spectroscopy and pulmonary gas exchange during and following exercise. Relative CP (72 ± 5 vs. 74 ± 2% P …

Biomechanical Properties Of Land Based And Shallow Water Wait: A Comparative Review Of Literature, Mostafa Yaghoubi, Philip Fink, Wyatt H. Page, Sarah P. Shultz

International Journal of Aquatic Research and Education

Aquatic locomotion exercises are frequently used in rehabilitation and cross-training for land-based athletes. Hydrostatic pressure, thermal conductivity and drag force affect a person's ability to move; therefore, it is important to understand differences of biomechanical gait in water vs land. This review investigated biomechanical differences between shallow water and land-based exercises. PubMed, Google Scholar, SPORTDiscus and Scopus were searched; 33 studies included walking forward (27), backward (6) and running (6). Electromyographic amplitude was similar or less in submaximal intensity during aquatic gait, in comparison to on land. At maximal intensities, however, the amplitude was similar (n=5) or higher (n=4) in …

Validation Of An Inertial-Measurement-Unit System For Calculating Hip And Knee Flexion Angles During Gait, Joonsun Park

Master's Theses

Technological advances regarding Inertial Measurements Units (IMUs) have positioned this type of sensor as an alternative for camera-based motion capture. This study introduces a new IMU based system (IMU_sys) to measure hip and knee flexion angles. PURPOSE: To validate the use of a five-sensor IMU_sys for the measurement of knee and hip flexion angles during gait in adults and pediatrics at two different time points. METHODS: Bilateral hip and knee flexion patterns (LH, RH, LK, and RK) of twenty-two healthy participants (12 adults and 10 pediatric) between the ages of 8 – 35 years were investigated. Participants …

Groveport Rec Center: Covid-19 Vs. Exercise, Ciara Masterson

Masters Theses/Capstone Projects

Groveport Rec Center: Covid-19 vs. Exercise

Developing A Computer-Controlled Treat Dispenser For Canine Operant Conditioning, Walker Arce, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty Publications

When performing canine operant conditioning studies, the delivery of the reward can be a limiting factor of the study. While there are a few commercially available options for automatically delivering rewards, they generally require manual input, such as using a remote control, in accordance with the experiment script. This means that human reaction times and transmission distances can cause interruptions to the flow of the experiment. The potential for development of non-supervised conditioning studies is limited by this same factor. To remedy this, we retrofitted an off-the-shelf treat dispenser with new electronics that allow it to be remotely controllable as …

An Exploration Of Mosston’S Spectrum Of Teaching Styles In Athletic Training Education., Dominique M. Ross, Aimee M. Pascale

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

Athletic training educators teach in didactic, laboratory and clinical settings, all requiring an array of pedagogical strategies to effectively instruct students. Mosston’s Spectrum of Teaching Styles is a theoretical framework to support pedagogical decision making in physical education. The purpose of the commentary is to examine teaching styles from Mosston’s Spectrum in the context of athletic training education. A general introduction, review of comparative literature and practical application to athletic training education is provided for each of the eleven teaching styles. The examination and application of educational theory from other disciplines may provide athletic training educators additional resources to enhance …

Force And Emg Comparison Between A Weight-Bearing Clinical Assessment Of Hip Strength Assessment And Non-Weightbearing Tasks, Kemery J. Sigmund, Jennifer E. Earl-Boehm

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

Purpose: Altered hip strength is a risk factor for lower extremity injury but its relationship to biomechanical dysfunction is debated. Hip strength assessment methods are criticized for using unidirectional, non-weight-bearing positions which may not be representative of athletic activity and may affect comparison to biomechanical analysis of athletic tasks. A weight-bearing task may better represent hip muscle function during these movements. The aim of this study was to identify EMG and force differences for a clinical weight-bearing method of hip strength (the squat-hold) to traditional non-weight-bearing maximal voluntary isometric contractions (MVICs) for hip abduction, extension, and external rotation. Methods: Twenty-nine …

Effect Of Age At Menarche On Anterior Cruciate Ligament Injury Incidence And Anterior Knee Laxity In Collegiate Athletes, Andrew W. Froehle, Joseph T. Cox, Jedediah H. May, Kimberly A. Grannis, Dana L. Duren

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

Female athletes suffer painful, costly, and career-limiting non-contact anterior cruciate ligament (ACL) injuries more often than males. Previous research suggests that pubertal neuromusculoskeletal development contributes to this sex-bias, but the manner in which variation in pubertal development affects injury risk within females is poorly understood. Age at menarche is a variable, significant pubertal developmental event, signaling the onset of estrogen cycling and affecting musculoskeletal development. Earlier menarche may increase injury risk, possibly by increasing anterior knee laxity through prolonged estrogen exposure. The purpose of this case-control study was to test the primary hypothesis that collegiate athletes with previous ACL injuries …

Adolescent Perceptions Of Injury And Pressures Of Returning To Sport: A Retrospective Qualitative Analysis, Jordan J. West, Zachary K. Winkelmann, Jessica Edler, Bradley C. Jackson, Lindsey E. Eberman

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

The increase in sport participation among adolescents has led to the rise in sport-related injuries, many of which have unique characteristics based on the patient, their perceptions, and the pressures faced when returning to sport. The purpose of this study was to identify the underlying factors that contributed to adolescents’ perceptions of injury and the various pressures they experienced when returning to sport. Two themes emerged from the study: support and fear. Support was provided to participants through development, care, and the environment. Fear was the factor that affected the participant in their return to sport, which came in the …

Recurrent Patellar Fracture In A Healthy Collegiate Basketball Player: An Exploration Clinical Case Report, Mikaela Boham, Jerry Hilker

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

Recurrent Patellar Fracture in a Healthy Collegiate Basketball Player: An Exploration Clinical Case Report

ABSTRACT

Purpose: Patellar fractures only account for approximately 1% of all skeletal injuries. Patellar fractures usually result from direct trauma (i.e. falling on the knee, dashboard injury, etc.), or, less frequently, occur as a combination of direct and indirect mechanism (i.e. receiving a direct blow while contracting the quadriceps). While indirect trauma is the least common mechanism, it usually occurs due to an extensor mechanism failure during eccentric loading such as landing. Method: Case report, Level 3: Exploration Clinical Contribution to the Available Sources of Evidence …

Exercise And Lifestyle Physical Activity Recommendations For People With Multiple Sclerosis Throughout The Disease Course, Rosalind Kalb, Theodore R. Brown, Susan Coote, Kathleen Costello, Ulrik Dalgas, Eric Garmon, Barbara Geisser, June Halper, Herb Karpatkin, Jennifer Keller, Alexander V. Ng, Lara A. Pilutti, Amanda Rohring, Paul Van Asch, Kathleen Zachowski, Robert W. Motl

Exercise Science Faculty Research and Publications

Objectives:

To provide clinicians who treat multiple sclerosis (MS) patients with evidence-based or expert opinion–based recommendations for promoting exercise and lifestyle physical activity across disability levels.

Methods:

The National MS Society (“Society”) convened clinical and research experts in the fields of MS, exercise, rehabilitation, and physical activity to (1) reach consensus on optimal exercise and lifestyle physical activity recommendations for individuals with MS at disability levels 0–9.0 on the Expanded Disability Status Scale (EDSS) and (2) identify and address barriers/facilitators for participation.

Recommendations:

Based on current evidence and expert opinion, the Society makes the following recommendations, endorsed by the Consortium …

Who Is Wearing A Mask? Gender-, Age-, And Location-Related Differences During The Covid-19 Pandemic, Mike Haischer, Rachel Beilfuss, Meggie Rose Hart, Lauren Opielinski, David Wrucke, Gretchen Zirgaitis, Toni D. Urich, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Masks are an effective tool in combatting the spread of COVID-19, but some people still resist wearing them and mask-wearing behavior has not been experimentally studied in the United States. To understand the demographics of mask wearers and resistors, and the impact of mandates on mask-wearing behavior, we observed shoppers (n = 9935) entering retail stores during periods of June, July, and August 2020. Approximately 41% of the June sample wore a mask. At that time, the odds of an individual wearing a mask increased significantly with age and was also 1.5x greater for females than males. Additionally, the …

Impaired Firing Behavior Of Individually Tracked Paretic Motor Units During Fatiguing Contractions Of The Dorsiflexors And Functional Implications Post Stroke, Francesco Negro, Kathleen Bathon, Jennifer Nguyen, Cassidy Bannon, Claudio Orizio, Sandra K. Hunter, Allison S. Hyngstrom

Exercise Science Faculty Research and Publications

Introduction: This study quantified stroke-related changes in the following: (1) the averaged discharge rate of motor units (individually tracked and untracked) identified from high-density electromyography (HD-EMG) recordings, (2) global muscle EMG properties of the dorsiflexors during a fatiguing contraction, and the relationship between task endurance and measures of leg function.

Methods: Ten individuals with chronic stroke performed a sustained sub-maximal, isometric, fatiguing dorsiflexion contraction in paretic and non-paretic legs. Motor-unit firing behavior, task duration, maximal voluntary contraction strength (MVC), and clinical measures of leg function were obtained.

Results: Compared to the non-paretic leg, the paretic leg task duration was shorter, …

Time-Frequency Analysis Of Muscle Activation Patterns In People With Chronic Ankle Instability During Landing And Cutting Tasks, Hoon Kim, Rianna M. Palmieri-Smith, Kristof Kipp

Exercise Science Faculty Research and Publications

Background

People with chronic ankle instability (CAI) exhibit neuromuscular deficits. Previous studies, however, only investigated magnitudes of muscle activation and not the time-frequency domain.

Research question

Do people with CAI exhibit differences in muscle activation patterns in the time-frequency domain during landing, anticipated cutting, and unanticipated cutting compared to matched controls?

Methods

Eleven people with CAI and eleven healthy matched controls (CON) performed landing, anticipated cutting, and unanticipated cutting as surface EMG of the lateral gastrocnemius, medial gastrocnemius, fibularis longus, soleus, and tibialis anterior were recorded. The time-frequency domain of surface EMG data was analyzed with wavelet transformations and principal …

Greater Fatigue Resistance Of Dorsiflexor Muscles In People With Prediabetes Than Type 2 Diabetes, Jonathon Senefeld, Lynette A. Singh-Peters, Kenji A. Kenno, Sandra K. Hunter, Jennifer M. Jakobi

Exercise Science Faculty Research and Publications

Although exercise can prevent progression to T2D among people with prediabetes, little is known about fatigue during exercise in people with prediabetes compared to T2D. The purpose of the study was to compare the magnitude and mechanisms of fatigability of the ankle dorsiflexor muscles between people with prediabetes and T2D. Ten people with prediabetes (6 females, 51.7 ± 6.9 years) and fourteen with T2D (6 females, 52.6 ± 6.2 years) who were matched for age, body mass index and physical activity performed an intermittent (6 s contraction: 4 s relaxation) fatiguing task at 75% maximal voluntary contraction (MVC) with the …

Localized Vibration: Effects On Flexibility, Louis Vince Lepak, Thomas W. Allen, Candace Robledo, David M. Thompson

School of Medicine Publications

Background. Flexibility is an important component of physical conditioning used to improve performance and prevent injury. The application of vibration is one method that has been reported to increase flexibility. The preponderance of the literature reports the effects of whole-body vibration; fewer studies have investigated the effects of local vibration (LV) therapy.

Aims. To assess if LV affects spinal flexibility, the sit-and-reach test, or lower extremity range of motion measurements when compared to controls. To determine if the effects were specific to the site of LV application and if changes persisted between the follow-up visits.

Methods. Forty-three college students (age …