Life Sciences Commons^™

An Acute Naproxen Dose Does Not Affect Core Temperature Or Interleukin-6 During Cycling In A Hot Environment, Dawn M. Emerson, Stephen Cl Chen, Toni M. Torres-Mcgehee, Craig E. Pfeifer, Charles C. Emerson, J Mark Davis

Faculty Publications

Non-steroidal anti-inflammatory drugs' anti-pyretic and anti-inflammatory effects has led some individuals to theorize these medications may blunt core body temperature (Tc) increases during exercise. We utilized a double-blind, randomized, and counterbalanced cross-over design to examine the effects of a 24-h naproxen dose (3-220 mg naproxen pills) and placebo (0 mg naproxen) on Tc and plasma interleukin-6 (IL-6) concentrations during cycling in a hot or ambient environment. Participants ( = 11; 6 male, 5 female; age = 27.8 ± 6.5 years, weight = 79.1 ± 17.9 kg, height = 177 ± 9.5 cm) completed 4 conditions: 1) placebo and ambient (Control); …

Racial Disparities In Gestational Weight Gain, Body Mass Index, And Physical Activity During Pregnancy And After Delivery, Marcey Acacia Jiles

Theses and Dissertations

Background & Purpose: African American women have higher rates of obesity than white women. Pregnancy is characterized by rapid weight gain, and 48.8% of women in South Carolina exceed recommended limits. Prenatal exercise is recommended and may help prevent excessive gestational weight gain (GWG). Our purpose was to determine whether GWG and prenatal exercise levels differed between African American and Caucasian women.

Methods: We included 79 women who delivered a singleton infant 6 months - 3 years ago and were free from smoking, type 1 or 2 diabetes, or use of steroids or protease inhibitors (mean age =31.3 yrs; mean …

Physical Activity And Sedentary Behavior During And After Pregnancy And Postpartum Weight Retention, Kaitlyn Taylor Ramey

Theses and Dissertations

INTRODUCTION AND PURPOSE

Pregnancy is associated with increased changes in body weight that can shape long-term health in women. Previous studies have shown that increased prenatal physical activity and decreased sedentary time correlated with less excessive gestational weight gain. Little is known about how leisure time exercise and sedentary behavior affects postpartum weight retention. The aim of our study was to identify how sedentary behavior and leisure time physical activity, both mid-pregnancy and after pregnancy, relate to postpartum weight retention from 6 months to 3 years after childbirth.

METHODS

A total of 79 women who delivered a singleton infant 6-months …

Clinical Determinants Of Vo2 Max Response To Endurance Training: Heritage Family Study, Emanuel Ayala

Theses and Dissertations

Background: Maximal oxygen uptake trainability (U+0394VO₂max) is largely determined by non-modifiable traits. However, less is known of the contribution of modifiable phenotypes to VO₂max response to endurance training. The purpose of this study was to examine the relationship between baseline cardiopulmonary, metabolic, and body composition traits and U+0394VO₂max.

Methods: Subjects were 717 healthy, physically inactive adults (44% female, 34% Black) who completed a 20-week, highly standardized, endurance training program as part of the HERITAGE Family Study. Resting and exercise phenotypes were collected at baseline and post-training. A total of 33 variables related to cardiopulmonary, …

The Influence Of Adhd On Concussion In Ncaa College Athletes, Brett Steven Gunn

Theses and Dissertations

Evidence suggests attention deficit/hyperactivity disorder (ADHD) may be associated with an increased incidence of concussion; however, no study has cross-sectionally (Aim 1) and longitudinally (Aim 2) assessed the associations of ADHD with concussion. Additionally, there is reason to expect cognitive alterations following concussion in athletes with ADHD. Further, there is currently no study that has evaluated the influence of common medications often taken to mitigate some symptoms of ADHD, such as methylphenidate and amphetamines. Therefore, we sought to longitudinally assess cognitive profiles (Aim 3) of athletes with ADHD taking medication (ADHD+Rx) and not taking medication (ADHD_uRx) at baseline, 24-48 hours …

Identifying Effective Intervention Strategies To Reduce Children’S Screen Time: A Systematic Review And Meta-Analysis, Alexis Jones, Bridget Armstrong Ph.D., Robert Glenn Weaver M.Ed., Phd, Hannah Parker, Lauren Von Klinggraeff, Michael W. Beets Ph.D.

Faculty Publications

Background

Excessive screen time (≥ 2 h per day) is associated with childhood overweight and obesity, physical inactivity, increased sedentary time, unfavorable dietary behaviors, and disrupted sleep. Previous reviews suggest intervening on screen time is associated with reductions in screen time and improvements in other obesogenic behaviors. However, it is unclear what study characteristics and behavior change techniques are potential mechanisms underlying the effectiveness of behavioral interventions. The purpose of this meta-analysis was to identify the behavior change techniques and study characteristics associated with effectiveness in behavioral interventions to reduce children’s (0–18 years) screen time.

Methods

A literature search of …

Normalization Of Muscle Strength Measurements In The Assessment Of Cardiometabolic Risk Factors In Adolescents, Tiago Rodrigues De Lima, Xuemei Sui M.D., M.P.H., Ph.D., Diego Augusto Santos Silva

Faculty Publications

Muscle strength (MS) has been associated with cardiometabolic risk factors (CMR) in adolescents, however, the impact attributed to body size in determining muscle strength or whether body size acts as a confounder in this relationship remains controversial. We investigated the association between absolute MS and MS normalized for body size with CMR in adolescents. This was a cross-sectional study comprising 351 adolescents (44.4% male; 16.6 ± 1.0 years) from Brazil. MS was assessed by handgrip and normalized for body weight, body mass index (BMI), height, and fat mass. CMR included obesity, high blood pressure, dyslipidemia, glucose imbalance, and high inflammation …

Hydration, Eating Attitudes And Behaviors In Age And Weight-Restricted Youth American Football Players, Susan Yeargin, Toni M. Torres-Mcgehee, Dawn Emerson, Jessica Koller, John Dickinson

Faculty Publications

There is a paucity of research examining hydration and nutrition behaviors in youth American football players. A potentially unique risk factor are league restrictions based on weight (WR) or age (AR). The purpose of this study was to examine hydration status between WR and AR leagues. The secondary purpose was to describe eating patterns in players. An observational cohort design with 63 youth football players (10 ± 1 yrs, 148.2 ± 9.4 cm, 44.9 ± 15.3 kg) was utilized. Independent variables were league (AR ( = 36); WR ( = 27)) and activity type (practice (PX = 8); game (GM …

Physical Activity Among Adults Residing In 11 Countries During The Covid-19 Pandemic Lockdown, Kele Ding, Jingzhen Yang, Ming-Kai Chin, Lindsay Sullivan, J. Larry Durstine, Verónica Violant-Holz, Giyasettin Demirhan, Nara R.C. Oliveira, Biljana Popeska, Garry Kuan, Waheeda Khan, Jianhui Dai, Xia Xu, Zornitza Mladenova, Govindasamy Balasekaran, Gary A. Smith, Global Community Health-Covid-19 Collaborative Research Team

Faculty Publications

During the novel coronavirus (COVID-19) pandemic, physical activity (PA) behaviors were altered worldwide due to public health measures such as “lockdown.” This study described PA among adults residing in 11 countries during COVID-19 lockdown and examined factors associated with PA engagement. We conducted a cross-sectional anonymous survey among adults (≥18 years old) in 11 countries (Brazil, Bulgaria, China, India, Ireland, Malaysia, North Macedonia, Singapore, Spain, Turkey, United States). Of 11,775 participants, 63.7% were female and 52.8% were 18–34 years old. More than 40% of participants were insufficiently active (43.9%) and reported a decrease in their PA during lockdown (44.8%). Statistically …

Multiple Processes Predict Motor Learning And Impairments After A Stroke, Christopher Michael Perry

Theses and Dissertations

Acquiring, refining, and adapting motor skills allows for successful interaction with our environment to perform daily activities such as driving, cooking, and self-care. Those with stroke often exhibit a compromised ability to relearn motor skills affected by their stroke resulting in chronic disability. Previous rehabilitation studies suggest that deficits in skilled limb movement primarily contributes to deficits after a stroke. However, studies in motor skill performance suggests that multiple behavioral features including visual search, eye-hand coordination and visuomotor decisions also contribute to improved performance. Currently, it is not known if refinements in multiple behavioral features independently contribute to motor learning, …

The Influence Of Sport Participation On Physical Activity In Youth, Emily R. Shull

Theses and Dissertations

Youth sport participation has been widely supported as a strategy for promoting physical activity in children and youth. Previous research has identified positive associations between youth sport participation and children’s physical activity levels. However, there is a paucity of research regarding characteristics of youth sport that may affect the amount and intensity of physical activity youth attain during sport participation. This dissertation is comprised of three studies, and the overall purpose is to examine how characteristics of youth sport associate with children’s physical activity. In the first study, the relationship between types of sport participation and objectively measured physical activity …

Performance Of The Wrist-Worn Actigraph Gt3x + In Measuring Physical Activity In Older Women, Michal Talley Smith

Theses and Dissertations

Introduction: Being able to accurately measure physical activity intensity and energy expenditure is crucial to understanding the role physical activity plays in lowering the risk for disease. This thesis aims to examine the performance of the wrist-worn GT3X+ in measuring PAEE and classifying activity intensity in a healthy non-obese population of older women. Methods: Baseline data collected in the Women’s Energy Expenditure in Walking Programs Study (ClinicalTrials.gov identifier: NCT01722136) were used. PAEE was measured concurrently for 2 weeks using the doubly labeled water method in combination with indirect calorimetry, the GT3X+ ActiGraph accelerometer (GT3X+, ActiGraph LLC, Pensacola, FL), and the …

The Relationship Of Structured Environments With Children’S Body Composition And Obesogenic Behaviors, Ethan T. Hunt

Theses and Dissertations

Recent nationally representative data show among children and adolescents aged 2 to 19 years, the prevalence of obesity is 17.0% (95CI= 15.5%-18.6%). Further, rates of obesity are disproportionately high among minoritized youth. The prevalence of children and adolescents with obesity is lower among White children compared to Black children (14.7% vs. 19.5%) or Hispanic children (14.7% vs. 21.9%). Disparities by socioeconomic status exist as well. Prevalence of children with obesity from households with an income that is >350% of the federal poverty threshold (after accounting for household size) is significantly less compared to children from households with an income that …

Effects Of Basketball Exercise Simulation Test (Best) On Landing Mechanics In Active Females, Madison Treece

Theses and Dissertations

Intro: In the United States, female basketball players have the second highest rate of ACL injury, following female soccer players. This injury rate is four times higher than their male counterparts. These injuries occur more frequently at the end of the first and second halves and may be associated with exercise-induced fatigue causing knee instability. The purpose of this pilot study was to determine the effects of a basketball simulation test on landing mechanics. Methods: Six subjects completed both the intervention and the control trial consisting of four 10-min quarter game simulations of the validated Basketball Exercise Simulation …

Strengthening The Evidence-Base Of Youth Nutrition Programs: A Three Part Approach, Rebecca Kyryliuk

Theses and Dissertations

National dietary guidelines recommend that children’s diets consist of fruits, vegetables and whole grains, while limiting high-fat foods. Studies indicate, however, that children consume an abundance of sugar-sweetened, calorically dense foods and are lacking in fruit and vegetables, behaviors which significantly contribute to high rates of childhood obesity and subsequent, lifelong, detrimental health impacts. This dissertation provides new knowledge to strengthen the evidence-base and inform future best practices in youth nutrition programming so that more children will have the opportunity to meet national dietary recommendations. Three distinct investigations sought to 1) examine current and past youth dietary intake by comparing …

Non-Steroidal Anti-Inflammatory Drugs On Core Body Temperature During Exercise: A Systematic Review, Dawn M. Emerson, Stephen Cl Chen, Melani R. Kelly, Bryant Parnell, Toni M. Torres-Mcgehee

Faculty Publications

BACKGROUND: Because of their anti-pyretic effects, some individuals prophylactically use non-steroidal anti-inflammatory drugs (NSAIDs) to blunt core temperature (Tc) increases during exercise, thus, potentially improving performance by preventing hyperthermia and/or exertional heat illness. However, NSAIDs induce gastrointestinal damage, alter renal function, and decrease cardiovascular function, which could compromise thermoregulation and increase Tc. The aim of this systematic review was to evaluate the effects of NSAIDs on Tc in exercising, adult humans. METHODS: We conducted searches in MEDLINE, PubMed, Cochrane Reviews, and Google Scholar for literature published up to November 2020. We conducted a quality assessment review using the Physiotherapy Evidence …

Examination Of Energy Needs And Female Athlete Triad Components In Competitive Cheerleaders, Allison Smith

Theses and Dissertations

The sport of cheerleading has grown immensely over the recent decades. The current sport requires full body athletic abilities like gymnastics, ballet, and swimming and diving. These sports have previously reported high rates of eating disorder (ED) risk, body image dissatisfaction, and Female Athlete Triad (Triad) components (low energy availability with or without and eating disorder, menstrual cycle dysfunction, and low bone mineral density). Scientific research examining these factors within cheerleaders has been limited. The purpose of this study was to examine overall ED risk across cheerleading team type (All-Star, college), squad type (all-girl, coed), and by position (flyer, base, …

Examination Of Eating Disorder Risk Among University Marching Band Artists, Nancy A. Uriegas, Dawn M. Emerson, Allison B. Smith, Melani R. Kelly, Toni M. Torres-Mcgehee

Faculty Publications

BACKGROUND: Marching band artists are a physically active population, composed of approximately 27,000 people in the United States. University marching band artists face many of the same physically active demands and mental stressors as student athletes, potentially predisposing them to injury, illness, and risk for eating disorders (EDs). The purpose of this study was to examine ED risk across sex in university marching band artists, and to determine the type of risk based on the Eating Disorder Inventory-3 (EDI-3) and Eating Disorder Inventory-3 Symptom Check List (EDI-3 SC). A secondary aim examined marching band artists and pathogenic weight control behavior …

Personal Activity Intelligence And Mortality - Data From The Aerobics Center Longitudinal Study, Javaid Nauman, Xuemei Sui, Carl J. Lavie, Chi Pang Wen, Jari A. Laukkanen, Steven N. Blair, Patrick Dunn, Ross Arena, Ulrik Wisloff

Faculty Publications

Importance Personal activity intelligence (PAI) is a novel activity metric that can be integrated into self-assessment heart rate devices, and translates heart rate variations during exercise into a weekly score. Previous studies relating to PAI have been conducted in the same populations from Norway where the PAI metric has been derived, limiting generalizability of the results.

Objective: To test whether PAI is associated with total and cause-specific mortality in a large cohort from the United States.

Design: Aerobics Center Longitudinal Study (ACLS) – a prospective cohort between January 1974 and December 2002 with a mean follow-up of 14.5 years.

Setting: …

International Society Of Sports Nutrition Position Stand: Caffeine And Exercise Performance, Nanci S. Guest, Trisha A. Vandusseldorp, Michael T. Nelson, Jozo Grgic, Brad J. Schoenfeld, Nathaniel D.M. Jenkins, Shawn M. Arent, Jose Antonio, Jeffrey R. Stout, Eric T. Trexler, Abbie E. Smith-Ryan, Erica R. Goldstein, Douglas S. Kalman, Bill I. Campbell

Faculty Publications

Following critical evaluation of the available literature to date, The International Society of Sports Nutrition (ISSN) position regarding caffeine intake is as follows:

Supplementation with caffeine has been shown to acutely enhance various aspects of exercise performance in many but not all studies. Small to moderate benefits of caffeine use include, but are not limited to: muscular endurance, movement velocity and muscular strength, sprinting, jumping, and throwing performance, as well as a wide range of aerobic and anaerobic sport-specific actions. Aerobic endurance appears to be the form of exercise with the most consistent moderate-to-large benefits from caffeine use, although the …

Examination Of Athlete Triad Symptoms Among Endurance-Trained Male Athletes: A Field Study, Erin M. Moore, Clemens Drenowatz, David F. Stodden, Kelly Pritchett, Thaddus C. Brodrick, Brittany T. Williams, Justin M. Goins, Toni M. Torres-Mcgehee

Faculty Publications

Studies examining the physiological consequences associated with deficits in energy availability (EA) for male athletes are sparse. To examine male athlete triad components; low energy availability (LEA) with or without an eating disorder risk (ED), reproductive hormone [testosterone (T)], and bone mineral density (BMD) in endurance-trained male athletes during different training periods. A cross-sectional design with 14 participants (age: 26.4 ± 4.2 years; weight: 70.6 ± 6.4 kg; height: 179.5 ± 4.3 cm; BMI: 21.9 ± 1.8 kg/m2) were recruited from the local community. Two separate training weeks [low (LV) and high (HV) training volumes] were used to collect the …

Examining Eating Attitudes And Behaviors In Collegiate Athletes, The Association Between Orthorexia Nervosa And Eating Disorders, Nancy A. Uriegas, Zachary K. Winkelmann, Kelly Pritchett, Toni M. Torres-Mcgehee

Faculty Publications

Orthorexia nervosa (Orthorexia) is an eating attitude and behavior associated with a fixation on healthy eating, while eating disorders (EDs) are clinically diagnosed psychiatric disorders associated with marked disturbances in eating that may cause impairment to psychosocial and physical health. The purpose of this study was to examine risk for Orthorexia and EDs in student-athletes across sex and sport type and determine the association between the two. Student-athletes ( = 1,090; age: 19.6 ± 1.4 years; females = 756; males = 334) completed a survey including demographics, the ORTO-15 test (values), the Eating Attitudes Test-26 (EAT-26; >20 score), and additional …

Implementation Of Brain Breaks(R) In The Classroom And Its Effects On Attitudes Towards Physical Activity In A Chinese School Setting, Ke Zhou, Sensen He, Yanli Zhou, Biljana Popeska, Garry Kuan, Li Chen, Ming-Kai Chin, Magdalena Mo Ching Mok, Christopher R. Edginton, Ian Culpan, J. Larry Durstine

Faculty Publications

This study aimed to examine the effects of three-months of classroom-based Brain Breaks Physical Activity Solution (Brain Breaks®) on attitudes toward physical activity levels of primary school children in Henan Province, China. The participants were 704 children enrolled in grades 3–5 who were randomly assigned to either an experimental or a control group. The experimental group participated in Brain Breaks® video intervention for 3–5 min daily, at low-to-moderate intensity for three consecutive months. The control group resumed their normal routine. The children’s attitudes in both groups towards physical activity (PA) were evaluated using the self-reported Attitudes toward Physical Activity Scale …

Exertional Heat Illness Risk Factors And Physiological Responses Of Youth Football Players, Susan W. Yeargin, John J. Dickinson, Dawn M. Emerson, Jessica Koller, Toni M. Torres-Mcgehee, Zachary Y. Kerr

Faculty Publications

OBJECTIVE: To determine which intrinsic and extrinsic exertional heat illness (EHI) risk factors exist in youth American football players and observe perceptual and physiological responses of players during events (games and practices). METHODS: Cross-sectional cohort study observing 63 youth football players, varying in position. Independent variables were league (weight-restricted (WR, n = 27) and age-restricted (AR, n = 36)) and event type. Dependent variables were anthropometrics, work-to-rest ratio, and wet bulb globe temperature. Descriptive variables included preparticipation examination and uniform configuration. A subset of 16 players participated in physiological variables (heart rate and gastrointestinal temperature). Data collection occurred on 7 …