Life Sciences Commons^™

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.

Reliability Of Impedance Cardiography In The Measurement Of Cardiovascular Hemodynamics During Exercise., Daniel S. Valcicak

Showcase of Graduate Student Scholarship and Creative Activities

1. Overview of the Project

The project being presented investigated the reliability of a hemodynamic device. Subjects were asked to perform two running tests and two treadmill tests while wearing a device known as the PhysioFlow. The device is based off Ohm’s Law and runs a high frequency, low magnitude electric current through the individual’s thoracic region. The current is absorbed as the heart beats to determine the amount of blood the individual’s heart ejects per beat.

The present study investigated the hemodynamic differences across running and cycle exercise. To determine this, the subject ran/walked at two given intensities, during which …

Performance Impairment Following Sleep Restriction - Is Caffeine The Antidote?, Erin E. Horil

Showcase of Graduate Student Scholarship and Creative Activities

The purpose of this project was to test the hypothesis that caffeine supplementation can lessen the negative effects that sleep restriction (i.e. shortened sleep duration) has on next day performance. Recent work done in our lab showed that sleep restriction has a negative effect on 3-km cycling time trial performance. Thus, it is important to investigate potential ways to lessen the negative effects sleep restriction may have on performance, since it is commonly seen in athletes. In this study, participants completed a battery of performance testing and then a heavy exercise session. This was followed by either a full night …