Life Sciences Commons^™

The Effect Of Six Weeks Of Oral Echinacea Supplementation On Erythropoiesis, Nitric Oxide Production, And Exercise Performance, Tyler David Martin

Dissertations

The purpose of the present study was to investigate the effect of six weeks of oral Echinacea supplementation on serum erythropoietin (EPO) and erythropoietic status, plasma nitric oxide [NO], submaximal endurance exercise performance, and maximal oxygen uptake (V˙O_2max). Twenty-four males (mean ± SE): age = 25.2 ± 1.4 yr, height = 178.1 ± 1.4 cm, mass = 78.1 ± 1.6 kg, percent body fat = 12.7 ± 0.9 %, V˙O_max = 52.9 ± 0.9 mL·kg^-1·min^-1 were randomly grouped using a matched-pair, double-blind design and self-administered 8,000 mg·d^-1(5 × 400 mg × 4 …

Hospitality Students Perceptions About High Risk Behaviors In Relation To Destructive Behaviors And Decision Making, Boris A. Roslov

Graduate Theses and Dissertations

This study investigated hospitality students' perceptions regarding alcohol consumption and personal actions related to high risk behaviors. Those behaviors included: sexual encounters and binge drinking, and their effect on academic tasks and performance. The study investigated whether the hospitality student who is employed full time consumes alcohol at a higher level than a hospitality student does that is not employed full time.

Foam Rolling As A Warm-Up: The Effect On Lower Extremity Flexibility Compared To Aerobic And Stretching Protocols, Jeremy Ray Bushong

Graduate Theses and Dissertations

Foam rolling has recently become popular in the realms of athletic training, strength and conditioning, and fitness enthusiasts as a means to decrease stiffness, improve flexibility, and manage pain . However, little is known about the physiological effects of foam rolling or its role in improving flexibility pre- or post-exercise. The purpose of this project is to examine and compare the effects of foam rolling, aerobic cycling, and stretching on lower extremity flexibility. Nineteen participants (10 female, 9 male) volunteered to test sit-and-reach flexibility after performing four different warm-up protocols on different days. The warm-up protocols were: Foam Rolling for …

The Effects Of Sodium Bicarbonate Supplementation On Lower-Body Hypertrophy-Type Resistance Exercise, Benjamin Mclean Carr

Dissertations

A number of studies have demonstrated the ergogenic effects of induced-alkalosis on high-intensity intermittent exercise performance. Purpose: The aim of the present study was to examine the effects of sodium bicarbonate (NaHCO₃) administration on a high-volume hypertrophy-type resistance exercise regimen for the lower body. Methods: In a double-blind counterbalanced manner, 12 resistance-trained male participants (mean ± SD; age = 20.3 ± 2 yr, mass = 88.3 ± 13.2 kg, height = 1.80 ± 0.07 m), with a minimum of two years of training experience, ingested either 0.3 g˙kg^-1 of NaHCO₃ or calcium carbonate (CaCO₃) …

Effects Of Environment On Children's Motor Scores, Eligibility Status, And Administration Times, Derrick Mittelstadt, Abigail Parker, Kirsten Pickett, Heather Temkin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Best practices for assessing developmental skills in young children focus on naturalistic observation in everyday settings, but the effects of environment on test scores, eligibility status and administration time have not been explored. The Peabody Developmental Motor Scales-Second Edition (PDMS-2) was administered to 34 children aged 18 to 59 months in natural and pull-out settings. PDMS-2 total, gross, and fine motor quotient (TMQ, GMQ, and FMQ) scores were significantly lower in the natural environment (p’s≤.014). Based on our results, more children would qualify for services when tested in natural environments using TMQ and GMQ scores. It also took significantly longer …

The Acute Effects Of Various Types Of Stretching (Static, Dynamic, Ballistic, And No Stretch) Of The Iliopsoas On 40-Yard Sprint Times In Non-Athletes, Scott David Christensen, Craig Perry, Ryan Richard Resnik

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to determine the effect of static, ballistic, dynamic, and no stretching immediately prior to a 40-yard sprint in college students. There were 35 healthy subjects (22 male and 13 female) between the ages of 24 and 37 (Mean = 26.46 yrs, SD = 2.99 yrs) who participated. The experiment consisted of running 4, 40-yard sprint trials immediately following 1 of 4 different stretching protocols. Prior to each 40- yard sprint trial, a 5-minute warm up was performed at 3.5 mph on a treadmill. Each subject received each of the four techniques in a randomized …

The Acute Effects Of Static Stretching Of The Gastrocnemius On Limits Of Stability In Young Adults Versus Elderly Adults, Matt Bugnet, Kirk Player

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Balance is an important part of everyday life for all individuals with many body systems interacting to achieve optimal balance. Proprioceptive organs aid in this interaction, while also acting as stretch receptors. Therefore, it is possible that stretching may influence the overall balance of the individual. The purpose of this study was to investigate the acute effects of stretching on dynamic balance of healthy young and elderly adults. The two groups were used to determine if stretching may discriminately affect balance at different ages.

Subjects: Thirty healthy adults between the ages of 18 and 35 …

Examining Activity Levels And Motor Proficiency: A Comparison Of Children Who Are Overweight And At A Healthy Weight To Their Parents And Peers, Aaron Copeland, Maresa Madsen, Riley Phelps, Brandon Richards

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: The purpose of this study was to examine relationships and differences between motor proficiency, activity level, and parental activity level in children who are at a healthy weight and children who are overweight or obese.

Methods: Forty-four children (26 children at a healthy weight and 18 children who were overweight or obese) between the ages of 8-16 (BMI: 14.3-43.6 kg/m2) and 36 parents (BMI: 18.1-44.7) participated in this study. Children and parents wore StepWatch activity monitors (SAM) to measure activity levels over a 72 hour period. Tests reflecting several determinants of motor performance were also administered to …