The Effect Of Dietary Nitrate Supplementation On Physical And Cognitive Performance During Load Carriage In Military Cadets, Nicholas C. Bordonie

Masters Theses, 2020-current

Purpose: The purpose of this study was to determine the effects of dietary nitrate supplementation on physical and cognitive performance during exercise conducted under heavy pack load in military cadets. Methods: Ten college-aged males (VO_2max 56.2 ± 3.7 ml/kg/min) consumed 140mL/d of concentrated beetroot juice (BRJ; containing 12.8 mmol of dietary nitrate) or a placebo (PL; flavor, color, energy, and texture-matched with no dietary nitrate) for six days preceding an exercise trial. The trial consisted of 45 min of constant-load exercise on a treadmill at 4.83 km/h and 1.5% grade, followed immediately by a 1.6-km time-trial completed at maximal …

Postprandial Exhaled Nitric Oxide Responses In Older And Younger Adults With And Without Acute Exercise, Molly Miller

Masters Theses, 2020-current

A single high fat meal (HFM) increases airway inflammation in young, healthy individuals. Additionally, aging increases airway resistance and inflammation, though the airway inflammatory response to a HFM has not been investigated. Exercise is a natural anti-inflammatory, but has yet to be administered with a HFM as a method to study postprandial airway inflammation in older adults. Purpose: To investigate whether older individuals have greater postprandial airway inflammation compared to younger counterparts, and to explore whether exercise may modify the postprandial airway response in older adults. Methods: 12 younger adults (23.3±3.9 years; 5 M/7 F) and 12 older adults (67.7±6 …

The Effects Of Caffeine Ingestion On The Hemostatic Response To Simulated Firefighting Activities, Sierra Wassell

Showcase of Graduate Student Scholarship and Creative Activities

The leading cause of death among firefighters is sudden cardiac event, and it is acknowledged that most ischemic events are due to an occlusive thrombus formation. In addition, due to the demanding job requirements and shift work, firefighters are commonly known to overuse caffeine as an ergogenic aid. The purposes of this study were to examine the potential effects of caffeine on the hemostatic response to simulated firefighting activity.

The Effect Of Oral Contraceptives On Caffeine Metabolism And Cycling Performance, Annette M. Lemanski

Showcase of Graduate Student Scholarship and Creative Activities

This project objectives were to determine the effects of oral contraceptives and menstrual cycle on the benefits of caffeine supplementation for cycling performance. Seventeen recreationally trained female cyclists completed four trials consisting of 3 kilometer time trials. Subjects ingested either caffeine or a placebo one hour prior to each trial. The magnitude of the ergogenic aid of caffeine was compared between oral contraceptive users and eumenorreheic females. In addition, the effect of caffeine was compared across different phases of the menstrual cycle, specifically the follicular and luteal phases.

Validity And Reliability Of The Ymca Submaximal Cycle Test Using An Electrically Braked Ergometer, Justin Kidd

Senior Honors Projects, 2010-2019

Purpose: To test the effect of using an electrically braked ergometer on the validity and reliability of the YMCA submaximal cycle test.

Methods: 22 male and 13 female subjects ages 19 to 31 completed one maximal treadmill test and four submaximal cycle tests to measure and estimate VO_2max, respectively. The maximal tests involved recording heart rate and VO₂ during graded exercise until volitional fatigue; an actual max was verified when two out of the following criteria: respiratory Exchange Ratio > 1.1, VO₂ plateau (< 150 ml/min increase in VO₂ during final stage), and achievement of 90% age-predicted HR max (or completed …

The Effect Of Incline On Caloric Expenditure Measured By A Wrist-Worn Commercial Activity Monitor, Kaitlin M. Bickel

Senior Honors Projects, 2010-2019

Purpose Physical activity monitors have become popular among the general public to monitor steps, floors climbed, active minutes, and energy expenditure (EE). While there is evidence to support that these devices are accurate in counting steps, there is limited and inconclusive research regarding how accurate they are in measuring EE. This study aimed to test the accuracy of a newer commercial physical activity monitor, the Fitbit Charge (FC), in reporting EE compared to a research-grade accelerometer (GT3X), and indirect calorimetry (IC) while walking on a treadmill with and without incline.

Methods 30 subjects (22 female and 8 male) walked on …

The Effects Of Coffee Ingestion On The Acute Testosterone Response To Exercise, Taylor Landry

Masters Theses, 2010-2019

Abstract

This study investigated the effects of coffee ingestion (COF) on serum testosterone responses to exercise in recreationally weight-trained males. Subjects ingested either 12 ounces of 6mg/kg caffeinated coffee (COF), decaffeinated coffee (DEC), or water (PLA) one hour prior to exercise in a randomized, within-subject, crossover design. The exercise session consisted of 21 minutes of high intensity interval cycling (alternating intensities corresponding to two minutes at power outputs associated with 2.0 mmol/L lactate and 4.0 mmol/L lactate) followed by resistance exercise (7 exercises, 3 sets of 10 repetitions, 65% 1RM, 1-minute rest periods). Subjects also completed repetitions to fatigue tests …

The Effect Of Run Sprint Interval Training On Diabetic Metabolic Markers In Prediabetic Adults, Kathryn L. Hilovsky

Masters Theses, 2010-2019

Abstract

Purpose: The primary purpose of this study was to compare the effects of an 8-week run-sprint interval training (R-SIT) and continuous moderate-intensity training (MIT) on fasting blood glucose, HbA1c, insulin sensitivity, and β-cell function in sedentary, prediabetic adults. Secondary outcomes of the study included anthropometric, body composition variables, and aerobic capacity.

Methods: Sedentary, physician diagnosed prediabetic individuals were randomized into R-SIT (n=7, BMI 36.76 ± 9.79) or MIT (n=8, BMI 40.59 ± 12.49) interventions. Subjects participated in supervised exercise three times a week and attended a Diabetes Prevention Program course, once weekly. R-SIT participants performed 4-6 x 30-second …