Other Kinesiology Commons^™

Il-15 Activates The Jak3/Stat3 Signaling Pathway To Mediate Glucose Uptake In Skeletal Muscle Cells, James E. Krolopp, Shantaé M. Thornton, Marcia J. Abbott

Health Sciences and Kinesiology Faculty Articles

Myokines are specialized cytokines that are secreted from skeletal muscle (SKM) in response to metabolic stimuli, such as exercise. Interleukin-15 (IL-15) is a myokine with potential to reduce obesity and increase lean mass through induction of metabolic processes. It has been previously shown that IL-15 acts to increase glucose uptake in SKM cells. However, the downstream signals orchestrating the link between IL-15 signaling and glucose uptake have not been fully explored. Here we employed the mouse SKM C2C12 cell line to examine potential downstream targets of IL-15-induced alterations in glucose uptake. Following differentiation, C2C12 cells were treated overnight with 100 …

A Comparison Of Multipath And Conventional Neuromuscular Electrical Stimulation, Cody Brian Bremner

Dissertations

Neuromuscular electrical stimulation (NMES) is the use of an electrical current for the purpose of eliciting a muscular response, and these treatments are most often used clinically for the specific purpose of increasing quadriceps strength. It is commonly accepted that the effectiveness of NMES for this purpose is primarily determined by the NMES training intensity. However, spatially limited motor unit recruitment, fatigue and discomfort negatively impact NMES-induced torque, which subsequently reduces NMES training intensities. Due to the importance of NMES training intensity, a substantial amount of research has focused on strategies designed to increase NMES-induced torque production, as well as …

An Assessment Of Scholastic Basketball Programs: Administration, Facilities, And Support, Leah Cannady

Mahurin Honors College Capstone Experience/Thesis Projects

The main purpose of this study was to validate the survey insturement created to evaluate various aspects of scholastic basketball programs—including but not limited to administration, facilities, and support. All boys and girls head basketball coaches in South Dakota were administered an electronic survey created for the study. To incentivize participation, respondents could choose to be entered to win a monetary donation of $250 to their basketball program. Descriptive statstics were used to summarize respondent demographics and other statistical measures were used to indicate reliability and validity of the survey instrument. Cronbach’s alpha was calculated at .711 and Pearson’s correlation …

Positional And Match Action Profiles Of Elite Women’S Field Hockey Players In Relationship To The 2015 Fih Rule Changes, Heather A. Abbott

Electronic Theses and Dissertations

The objective of this dissertation was to examine the action profiles of elite field hockey players in relationship to the 2015 FIH rule change. The following are major findings of the dissertation: The following are major findings of the dissertation: Study 1 – Relative action profiles before the rule change revealed that defenders work at a lower meter per minute (m/min) when compared with all other positions, and that forwards, midfielders, and screens perform similar m/min during a game. Examination of pre rule change difference from the 1st to the 2nd half play showed that elite level field hockey players …

Seasonal Perceived Training Load In Ncaa Di Men’S Soccer: Is There A Dose-Response Relationship?, Andrew A. Pustina

Electronic Theses and Dissertations

The purpose of this dissertation was to determine if a there was a dose-response relationship across an NCAA Division I men’s soccer season. Specifically, this dissertation serves to: 1.) assess the validity of duration measurements that have previously been used to calculate session RPE during competitive matches, 2.) determine the degree and magnitude of change in intermittent endurance performance across a season and to observe how change in endurance relates with training load, 3.) determine the degree and magnitude of change in strength and explosiveness across a season, and to see how these strength changes relate to training load. 1.) …

Encoding Of Saltatory Tactile Velocity In The Adult Orofacial Somatosensory System, Rebecca Custead

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Processing dynamic tactile inputs is a key function of somatosensory systems. Spatial velocity encoding mechanisms by the nervous system are important for skilled movement production and may play a role in recovery of motor function following neurological insult. Little is known about tactile velocity encoding in trigeminal networks associated with mechanosensory inputs to the face, or the consequences of movement.

High resolution functional magnetic resonance imaging (fMRI) was used to investigate the neural substrates of velocity encoding in the human orofacial somatosensory system during unilateral saltatory pneumotactile inputs to perioral hairy skin in 20 healthy adults. A custom multichannel, scalable …

A Low-Carbohydrate Ketogenic Diet Combined With Six Weeks Of Crossfit Training Improves Body Composition And Performance, Rachel M. Gregory

Masters Theses, 2010-2019

A low-carbohydrate ketogenic diet (LCKD) is a popular approach to weight and fat loss. CrossFit is a high-intensity power training (HIPT) type exercise for all levels of age and fitness that has gained recognition as one of the fasting growing sports in America. No previous research has been found which examines body composition changes or performance in individuals consuming a LCKD and participating in CrossFit training. PURPOSE: The purpose of this research was to examine the effects of a 6-week LCKD and CrossFit program on body composition and performance. METHODS: Twenty-seven non-elite CrossFit subjects (mean ± SD age = …

Examining College Student Athlete Attitudes Towards Concussion Testing And Reporting Concussions, Kaitlyn Fry

Health, Human Performance and Recreation Undergraduate Honors Theses

Examining College Student Athlete Attitudes and Behaviors Toward Baseline Neurocognitive Concussion Testing

FryK, Anderson, M, Anderson, M, Schatz, P, Elbin, RJ: University of Arkansas, Fayetteville, Arkansas

Context: Examining athletes’ attitudes toward concussion diagnosis, management, and treatment can lead to improved multi-faceted management of a concussion injury. Although attitudes towards concussion injuries have been studied, the examination of athletes’ attitudes towards baseline computerized neurocognitive testing is understudied and is warranted. Objective: To examine the relationship between sex, concussion history, and previous exposure to baseline testing on athletes’ perceptions of effort provided during baseline testing and the utility of neurocognitive testing. Methods: …

Determining The Appropriate Timing Of Administration For Baseline Computerized Neurocognitive Testing (Cnt) Following Maximal Exertion, Samantha Mohler

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Computerized neurocognitive testing is part of the recommended multi-faceted approach to SRC assessment. Prior research has suggested that maximal exertion negatively effects CNT test scores. Purpose: To identify the appropriate timing of the administration of CNT following maximal exertion in healthy college-aged student athletes. Study Design: Prospective, random cross-over, repeated measures design. Methods: Week one participants fill out intake forms and then complete a baseline ImPACT test. The following three weeks, individuals were administered a VO2 max cycle ergometer test. Following the test participants will rest for <5 (immediate), 15, or 30 minutes before re-taking ImPACT. Results: Immediately following maximal exertion, negative composite scores, relative to baseline, were …

Improving Access To Care For Arkansas Youth Athletes With Sport-Related Concussion: Establishing “Teleconcussion” In Arkansas, Kristin Maxey

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Proper management of sport-related concussion (SRC) is critical for improved recovery outcomes in youth athletes. Several barriers exist to improving the standard of care for youth athletes with SRC. Many rural areas lack medical professionals with specialized training in SRC. Innovative methods for providing specialized healthcare to youth athletes with SRC are needed. Telehealth may be an effective means of providing specialized care for youth athletes with SRC located in underserved areas that have a shortage of healthcare providers specializing in SRC.

Purpose: The purpose of this study was to compare patient, caregiver, and provider ratings of the therapeutic …

Time Course Of Changes In Neuromuscular Parameters During Fatiguing High-Load And Low-Load Concentric Dynamic Constant External Resistance Leg Extension Muscle Actions, Cory M. Smith

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

The purpose of this study was to simultaneously assess electromyographic (EMG) and mechanomyographic (MMG) signals to examine the time course of changes in EMG amplitude, EMG frequency, MMG amplitude, and MMG frequency from the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) muscles during high-load (70%1 repetitions maximum; 1-RM) and low-load (30% 1-RM) concentric, dynamic constant external resistance (DCER) leg extension muscle actions to failure. Twelve men performed two randomized visits consisting of either 30 or 70% 1-RM DCER leg extension muscle actions to failure. Maximal voluntary isometric contractions (MVIC) and 1-RM measurements were performed before and after …

The Difference In Ventilatory Threshold Among Adolescent Males Based On Maturity Status, Dyane Loney

Honors Undergraduate Theses

Previous research has shown an inverse relationship between age and the relative intensity at which ventilatory threshold (VT) occurs in adolescent boys. However, no study has examined the effect of maturity status on VT in the differences in boys from the onset of puberty, adolescents. The purpose of this study was to compare VT among adolescent boys of different maturational groups. Methods: For this study, moderately active adolescent male participants (14 ± 3 y) completed this study. Maturational status of the participants was determined via years from peak height velocity (PHV), which is an estimation of somatic maturity status derived …

The Bigger Picture: Piecing Together The Experiences Of Family Members Living With High-Functioning Children With Autism Spectrum Disorder, Lauren Thomson

Theses and Dissertations (Comprehensive)

The purpose of this research was to explore the experiences of family members living with a child with ASD. The specific research questions that were addressed included: 1. How is a family member affected by having a child with ASD in the family unit; and 2. How does living with a child with ASD affect family functioning? The theoretical orientation of phenomenology was used to guide this research and to allow the “voice” of family members of children with ASD to be heard. The purpose of phenomenology is to distill individuals’ experiences with a phenomenon down to an “essence” of …

Investigating The Relationship Between Personality Traits And Athletic Performance Among Elite Hockey Players, Brittney H. Conway

EWU Masters Thesis Collection

"An interesting trend in the personality literature has been the assessment of the relationship between personality traits and athletic performances. In non-sport settings, the conscientiousness trait has been found to be strongly related to a number of good outcomes including job and training proficiency, academic performances, and physical activity (Barrick & Mout, 1991; Poropat, 2009; Rhodes & Smith, 2006). In the athletic setting, similar findings have been found with soccer players (Piedmont, Hill, & Blanco, 1999), football players (Tran, 2012) and Division 1 collegiate athletes (Saale-Prasad, 2014). However, in professional hockey these findings have generally not been replicated (Karp, 2000; …

A Phenomenological Investigation Of Cheerleaders' Lived Experiences Of Mental Blocks, Erin M. Lawrence

College of Graduate Studies: Theses & Dissertations

A mental block is a phenomenon in which an athlete’s mind no longer allows them to perform a physical skill that was previously well-learned and automatic. This phenomenon has received attention in gymnastics and trampoline but the literature is lacking an investigation of this phenomenon in all-star cheerleading. The purpose of this study was to examine the phenomenon of mental blocks by obtaining it from the first-person perspective of cheerleaders themselves. A purposeful sample of 8 all-star cheerleader participants was interviewed and transcriptions were analyzed utilizing qualitative analysis. Four main themes were found: 1) specific to backwards moving skills, 2) …

Static Stretching And Preconditioning Exercise Augments Power Output In Recreational Athletes, Mark R. Mason

Theses and Dissertations--Kinesiology and Health Promotion

The purpose of this study was to determine the independent and combined effects of performing a preconditioning exercise and antagonist stretching on vertical jump (VJ) performance. Twenty club rugby players performed a VJ in four conditions: control condition, following static stretching, following a preconditioning exercise, and following the combined treatment of static stretching and a preconditioning exercise. Electromyographic (EMG) activity was measured in the gluteus maximus, vastus lateralis, gastrocnemius medialis, and tibialis anterior during the VJ trials. Repeated measures ANOVA were used to compare VJ and EMG outcomes across conditions. A Bonferroni correction was used to account for multiple post-hoc …

Il-15 Mediates Mitochondrial Activity Through A Ppar𝛿-Dependent-Ppar𝛼-Independent Mechanism In Skeletal Muscle Cells, Shantaé M. Thornton, James E. Krolopp, Marcia J. Abbott

Health Sciences and Kinesiology Faculty Articles

Molecular mediators of metabolic processes, to increase energy expenditure, have become a focus for therapies of obesity. The discovery of cytokines secreted from the skeletal muscle (SKM), termed “myokines,” has garnered attention due to their positive effects on metabolic processes. Interleukin-15 (IL-15) is a myokine that has numerous positive metabolic effects and is linked to the PPAR family of mitochondrial regulators. Here, we aimed to determine the importance of PPAR𝛼 and/or PPAR𝛿 as targets of IL-15 signaling. C2C12 SKM cells were differentiated for 6 days and treated every other day with IL-15 (100 ng/mL), a PPAR𝛼 inhibitor (GW-6471), a PPAR𝛿 …

The Effectiveness Of Physical Activity Interventions On Young Individuals With Autism Spectrum Disorder: A Meta-Analysis, Adam Nacario

Cal Poly Humboldt theses and projects

Objective: The purpose of the study is to examine the efficacy of physical activity interventions and practices on psychomotor, cognitive, or affective outcomes on young individuals diagnosed with Autism Spectrum Disorder (ASD).

Methods: Standard meta-analytical procedures determining inclusion criteria, literature searches in electronic databases, coding procedures, and statistical methods were used to identify and synthesize articles retained for analysis. Cohen’s d (1988) will be utilized in order to interpret effect sizes and quantify research findings. The impact was assessed using coding procedures that categorize independent variables.

Results: A total of 23 independent samples (N=896) were utilized in this analysis. Results …