Life Sciences Commons^™

The Relationship Between Strength, Power, And Sprint Acceleration In Division I Men’S Soccer Players, Christopher Bellon

Electronic Theses and Dissertations

The purposes of this dissertation were three-fold. The first was to identify the approximate distances characterizing early-, mid-, and late-acceleration in a population of Division I men’s collegiate soccer players. The secondary purpose was to investigate the relationships between various strength-power variables and key sprint characteristics during early-, mid-, and late-acceleration in a population of Division I men’s soccer players. The final purpose of this dissertation was to compare the spatiotemporal characteristics of “strong” versus “weak” and “more powerful” versus “less powerful” Division I men’s soccer players during early-, mid-, and late- acceleration. The following are the major findings of …

Effects Of Acute Exercise On Postprandial Lipemia And Postprandial Glycemia, Stephen Decker

Electronic Theses and Dissertations

Introduction: Moderate-intensity aerobic exercise has been shown to attenuate the rise in triglycerides in during the postprandial period, however the effects of acute bouts of high-intensity exercise on postprandial lipemia and glycemia have not been explored. The purpose of this study was to examine the effects of acute high-intensity interval training on postprandial lipemia and postprandial glycemia.

Methods: Ten healthy males participated in a randomized crossover design consisting of one high-intensity exercise session and one sedentary control session, followed by consumption of a mixed meal. Blood triglyceride and glucose concentrations were monitored following the consumption of the meal.

Results: High-intensity …

Effect Of A Recovery Supplement On Weight Lifting Performance, Muscle Fiber Morphology And Muscle Protein Accretion, Christopher B. Taber

Electronic Theses and Dissertations

The purposes of this dissertation were to examine the effect of a protein and carbohydrate recovery beverage versus a placebo on weightlifting performance, its effect on muscle morphological changes and specific muscle protein accretion. The following are major finding from the dissertation: 1) Protein and carbohydrate recovery supplementation does not appear to have influence on performance measure in trained weightlifters. This finding may be associated with the short-term nature of this study and the trained population used. 2) Compared with placebo, a protein and carbohydrate beverage provided greater benefits on cross sectional area of type I and type II muscle …

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.) …

Effects Of Sport-Specific Training Conditions On Performance In High School Field Hockey Players., Alexandra Hannah Roberts

Electronic Theses and Dissertations

Many sports (e.g. field hockey, lacrosse, ice hockey) require the use of a mouthguard (MG) and the constraint of carrying a stick during play. Previous research has shown that these two conditions individually can cause decrements to athletic performance; however no research has been conducted into effect of the combination of these two conditions on both aerobic and anaerobic performance parameters. PURPOSE: The purpose of this study was to determine the effects of both chronic (during all conditioning) and acute MG and stick (MG-STK) use on aerobic fitness and anaerobic capacity over the course of a 12-week training and competition …

Resistance Exercise Elicits Selective Mobilization And Adhesion Characteristics Of Granulocytes And Monocyte Subsets, Adam Jajtner

Electronic Theses and Dissertations

Resistance exercise eliciting muscle damage results in an immune response, leading to increases in circulating cytokines, and immune cell mobilization. Classical monocytes respond to muscle damage, however, little is known about the intermediate or nonclassical monocyte response to resistance exercise. Moreover, the impact of polyphenol supplementation in conjunction with resistance exercise on the innate immune response is unknown. The purpose of this study was to examine the immune response following resistance exercise with (PPB) and without (PL) polyphenol supplementation. Thirty-nine untrained men were randomized into three groups: PPB (n=13, 21.8±2.5yrs, 171.2±5.5cm, 71.2±8.2kg), PL (n=15, 21.6±2.5yrs, 176.5±4.9cm, 84.0±15.7kg) or a control …

Intramuscular Tnf-Alpha Signaling In Response To Resistance Exercise And Recovery In Untrained Males., Jeremy Townsend

Electronic Theses and Dissertations

INTRODUCTION: The nuclear factor kappa B (NF-κβ) signaling cascade is responsible for mediating stress-activated catabolic effects of Tumor Necrosis Factor Alpha (TNF-α) downstream of the TNF receptor (TNFR1). NF-κβ transcription factor remains inhibited in the cytosol of the muscle and can be stimulated for translocation and transcription by a variety of external stimuli, most notably by pro-inflammatory cytokines and oxidative stress. Nevertheless, currently there is a gap in the literature with regard to the time course effect of NF-κβ signaling following acute resistance exercise in humans. PURPOSE: To observe the effects of an acute lower-body resistance exercise protocol and subsequent …

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: …

Effects Of Beta-Alanine Supplementation And High Intensity Interval Training Among Recreationally Active Females, Mary E. Yarbrough

Electronic Theses and Dissertations

Beta-alanine is a non-essential amino acid that when combined with L-histidine forms the dipeptide carnosine. Recent research has shown that supplementary intake of beta-alanine can substantially increase carnosine content in muscle fibers and has been associated with attenuating fatigue and enhancing high intensity exercise performance. The aim of this study was to examine the effects of 4 weeks of beta-alanine supplementation combined with high intensity interval training (HIIT) on indices of aerobic and anaerobic performance, rowing performance, and body composition. Twenty-one recreationally active females (22.2 ± 2.2 yrs.) participated in a double blind, placebo controlled study and were randomly assigned …