Life Sciences Commons^™

Nutrient Intake, Performance, And Body Composition In Preseason Wrestlers, Gregory Coapstick

Electronic Theses and Dissertations

BACKGROUND: College athletes, especially in weight class sports, often experience energy deficits. Weight class sports such as wrestling are at greatest risk for deficiencies, and little is known about the relationships between body composition, nutrient intake, and performance in these athletes.
OBJECTIVES: The purposes of this study were to quantify macronutrient and micronutrient intake of pre-season male collegiate wrestlers and compare to recommendations, and examine relationships among nutritional intakes, body composition, and performance measurements of strength, anaerobic, and aerobic capacity.
METHODS: Male Division I wrestlers (n=11, mean ± SD age: 21.3±1.7 years, wrestling experience: 14.9±2.5 years) were recruited during preseason. …

Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette

Electronic Theses and Dissertations

Purpose: This study investigated the body composition and strength changes of NAHL junior hockey players across a competitive season. It was hypothesized that players would lose lean body mass loss from pre-season to end-season. The secondary hypothesis was that players would lose strength in relation to the anticipated loss in lean body mass. Methods: Outcome measurements were taken at pre-season, mid-season, and endseason points of a competitive NAHL junior hockey season (n = 15, age = 19.1 years). Body composition was measured using air plethysmography (BodPod) and strength was measured using isokinetic strength testing (Biodex). Results: No significant changes in …

Recreational Female Crossfit Athletes And Low Energy Availability, Alison Kuch

Electronic Theses and Dissertations

CrossFit is a demanding sport in which athletes perform constantly varied, functional movements at a high intensity, therefore requiring an adequate energy availability to avoid negative health and performance consequences. The purpose of this study was to assess risk of low energy availability (low EA) (phase 1) among recreational, female CrossFit athletes and measure and calculate energy availability using a 7-day dietary to measure energy intake (EI) and exercise energy expenditure (ExEE) (phase 2). In phase 1, using the LEAF-Q (Low Energy Availability in Females Questionnaire), 49% of survey respondents (n=149) were found to be at risk of low EA. …

The Effects Of Hip Rotation On Hip Abductor Muscle Activation During Lateral Band Walk Exercise, Gina M. Fritz

Electronic Theses and Dissertations

BACKGROUND: Lateral band walks (LBW) have been used to strengthen hip abductors and decrease risk of lower extremity injuries. Several methods have been used to complete this exercise to determine which has the best outcome. PURPOSE: The purpose of this study is to compare muscle activation of the gluteus medius (Gmed), gluteus maximus (Gmax), and tensor fasciae latae (TFL) during straight leg LBW exercises performed using three different hip positions: 30-degree internal rotation, 30-degree external rotation, and a neutral hip position. METHODS: Thirty-seven recreationally active participants (10 male, 27 female; age=21.4±2.2 yr; mass=71.4±13kg; height=1.7±0.1 m) completed this study. Surface EMG …

Compensatory Inactivity In Female Collegiate Soccer Players, Caylee Costello

Electronic Theses and Dissertations

Objective: To measure the physical activity levels of Division I collegiate female soccer players with the use of accelerometers to help determine compensatory changes and help establish appropriate training rhythms through the course of a season.
Design: 25 female Division I soccer players volunteered to participate in a 7-day observational study. Players wore an ActiGraph GT3X+ accelerometer during waking hours. Five second epochs were recorded and age appropriate physical activity cut points were used to determine the minutes of sedentary time (ST), light physical activity (LPA), moderate physical activity (MPA), vigorous physical activity (VPA) and moderate to vigorous physical activity …

Using Maximum Power As A Variable For 1rm Prediction In The Squat And Bench Press, Sean O'Connor

Electronic Theses and Dissertations

Many Strength and Conditioning (S&C) coaches utilize a one-rep max (1RM) exercise test to gauge the maximal strength of athletes, and then prescribe resistance training programs based on a relative percentage of 1RM to obtain strength or power adaptations. However, many S&C coaches have raised questions regarding the safety and necessity of a 1RM test. Attempts to mitigate the weaknesses of 1RM testing have led to other methods of testing including repetition max testing (3RM, 5RM, 10RM, etc.) as well as load/velocity profiling. The main purpose of this study is to determine if 1RM can be accurately estimated from maximal …

A Comparison Between The Efficacy Of Traditional Periodization, Undulating Periodization, And Plyometric Training And Their Lasting Effects On Performance Outcomes In Youth Athletes. A Systematic Review And Meta-Analysis, Andre Mcintyre

Electronic Theses and Dissertations

Recreational and competitive youth (≤ 16 years old) sport participation over the years has increased in recent years. As a result of increased sport participation an emphasis on sport performance training and more particularly resistance training along with plyometric training have been on the rise. Resistance training and plyometric training can improve sports performance, rehabilitate injuries, prevent injuries, and enhance long-term health in adolescent athletes. Resistance training can be periodized numerous different ways, but the most popular training methods are traditional periodization, undulating periodization, and plyometric training. This systematic review and meta-analysis examined studies that compared traditional periodization, undulating periodization, …

Pilot Study: Knowledge And Attitudes Regarding Sport-Related Concussion In A Rural Interscholastic Sport Sample, Austin Westland

Electronic Theses and Dissertations

Context: Evidence supports education initiatives to improve knowledge of sport-related concussion (SRC) in active children and adolescents, as well as improve attitudes towards reporting concussion events to a supervising adult with the ultimate goal of early diagnosis and management. Most evidence focuses on urban and suburban children’s SRC knowledge and attitudes; however, little is known regarding knowledge and attitudes of children participating in sport in rural environments. Understanding current knowledge and attitudes of rural children can inform future education and health behavior strategies that encourage early reporting. Objective: Two objectives guided this study. First, obtain and analyze pilot data regarding …

The Effect Of Delayed Onset Muscle Soreness On Jumping Mechanics And Performance, Ryan J. Engels

Electronic Theses and Dissertations

Background: Delayed onset muscle soreness (DOMS) is an exercise-induced muscle soreness resulting from high-intensity eccentric muscular contractions. DOMS appears to be more prevalent in athletes at the beginning of an athletic season or when new movements or exercise are first introduced. The acute effect of DOMS on jumping mechanics is currently unknown. PURPOSE: The purpose of this study is to determine the effect of delayed onset muscle soreness on vertical jump performance and jumping mechanics. METHODS: Twenty college aged, recreationally active males participated in this study (age: 21.54 ± 2.61; height: 1.82 ± 0.067; mass: 81.36 ± 9.53). Participants were …

Cardiovascular Risk, Remote Ischemic Postconditioning, And Endothelial Ischemia-Reperfusion Injury, Brian A. Hemenway

Electronic Theses and Dissertations

Remote ischemic postconditioning (rIpost) is a potent vasculoprotective stimulus that is thought to reduce reperfusion injury associated with heart disease. However, certain animal models of cardiometabolic risk factors such as dyslipidemia, diabetes, and hypertension suggest the beneficial effects of rIpost to lessen reperfusion injury may be diminished. These findings have not been studied in clinically relevant humans. The aim of this study was to determine whether the protective effects of rIpost are reduced in the context of raised cardiometabolic risk in humans. Seven participants with raised cardiometabolic risk burden (age:57±7 years; BMI: 31±4kgm²participated in this 2X2 randomized cross-over …

Successful Weight Management: Barriers And Facilitators To Maintaining Weight After Weight Loss Via A Meal Replacement Program, Hope D. Kleine

Electronic Theses and Dissertations

Purpose: Meal replacement programs (MRPs) facilitate weight loss. Unfortunately, a large percentage of individuals that lose weight through MRP are not successful at maintaining their weight. Weight regain one year following weight loss via meal replacements has been as high as 40-50%, demonstrating a critical need to improve weight maintenance in MRP participants. Therefore, the purpose of this study is to identify barriers and facilitators of weight maintenance after reaching a goal weight in MRP participants.

Methods: Seven focus groups of ≤8 clients were conducted to discuss barriers and facilitators of weight maintenance prior to reaching a point of …

Longitudinal Examination Of Perceived Stress And Depression Symptomology In Division I Student-Athletes, Bobby Daigle

Electronic Theses and Dissertations

CONTEXT: Concussions are all too prevalent in amongst athletes. Concussions make up almost 5 percent of all collegiate athletic injuries. Concussions have been linked with many long lasting effects including depression and increased stress or anxiety.

OBJECTIVE: To longitudinally examine post-concussion depression and stress levels in National Collegiate Athletic Association Division 1 athletes.

DESIGN: Descriptive longitudinal study.

SETTING: National Collegiate Athletic Association Division I collegiate athletics.

PARTICIPANTS: Concussed and uninjured Division I collegiate athletes, ages 18-22, competing in football, women’s soccer, baseball, softball, and women’s track.

INTERVENTION(S): Participants completed the CES-D at baseline, 1 week, 1 month, and 3 months …

Influence Of Cardiovascular Risk Factors On Remote Ischemic Preconditioning, Tiffany Trachte

Electronic Theses and Dissertations

A powerful therapy against microvascular endothelial ischemia-reperfusion injury is remote ischemic preconditioning (rIPC), which triggers tissue protection by exposing a limb to small cycles of vascular occlusion. Animal models indicate that CVD risk factors reduce the protective benefits of ischemic conditioning. However, there are no human studies investigating how a burden of risk factors interferes with rIPC to prevent endothelial injury. The purpose of the present study was to determine the influence of risk factor burden on the capacity of rIPC to prevent endothelial reperfusion injury in humans. Twenty-two (age: 45±14 yr., BMI: 31±8 kg/m2) sedentary adults (12 lower burden: …

The Correlation Between Strength Levels Measured Through Dynamic Strength Exercises And The Incidence And Severity Of Injury Among Collegiate Athletes, Alex Jardine

Electronic Theses and Dissertations

Injury to athletes in sport occurs as a result of extrinsic and intrinsic risk factors. Mounting evidence points toward decreased strength as a predictor of injury in athletes. By comparing strength levels in functional movement patterns to injury, the strength and conditioning professional will be able to design effective training programs to reduce the incidence of injury in sport better. The purpose of this study was to determine the correlation between strength measured through dynamic strength exercises (power clean, the squat, and the bench press) among collegiate athletes and the incidence and severity of injury. We hypothesized that greater incidence …

A Qualitative Analysis Of Barriers To And Facilitators Of Successful Weight Loss, Alyson Drooger

Electronic Theses and Dissertations

Background: Along with the United States obesity epidemic comes extensive weight loss attempts. One way people are attempting to lose weight is through meal replacement programs. Much work has been done to study strategies of structured weight loss programs and examine their success. Limited work has been done to study the specific barriers and facilitators of the real life participants who join weight loss programs. The purpose of this study is to identify, through qualitative research methods, the barriers to and facilitators of weight loss while participating in a meal replacement program.

Methods: Twenty-nine members of a meal replacement program …

Icook 4-H: Report Of Accelerometer Derived Physical Activity In 9-10 Year Old Children From Baseline, Post, And Follow-Up, Chase Merfeld

Electronic Theses and Dissertations

To examine the relationship between baseline, post, and follow-up accelerometer derived physical activity (PA) in 9-10 year old children participating in iCook 4-H, a 16-week, 5- state, randomized control family centered childhood obesity prevention program. This family focus intervention was designed to promote PA through lifestyle modifications. Between group differences in minutes-per-day and intensity of PA were determined on accelerometer compliant participants. All subjects wore an accelerometer (Actigraph GT3X+) for 7 days at baseline, post, and follow-up intervention assessment. Mean daily minutes of accelerometer derived sedentary time (ST) and PA including light (LPA), moderate (MPA), vigorous (VPA) and moderate-to-vigorous (MVPA) …

Evaluation Of A Simple Intervention To Increase Self- Efficacy For Independent Exercise In Cardiac Rehabilitation Participants, Sherry A. Barkley

Electronic Theses and Dissertations

Purpose: While benefits of exercise after a cardiac event are well documented, participation in and adherence to cardiac rehabilitation (CR) programs is often low. The purpose of this study was to test the effectiveness of a self- efficacy coaching intervention (SCI): a simple theory-based behavioral intervention to increase self-efficacy for independent exercise as well as independent exercise behavior in CR patients. It was hypothesized that persons receiving the SCI treatment (T) would have higher levels of self-efficacy for exercise and greater participation in independent exercise than participants in an attention control (C) group.
Methods: People referred to a hospitalbased CR …