Life Sciences Commons^™

Combined Berry Extract And Bromelain Supplement Improves Blood Pressure, Endothelial Function, And Skeletal Muscle Oxygenation Status In Healthy Young Adults, Tesean K. Wooden

UNO Student Research and Creative Activity Fair

Cardiovascular disease (CVD) is associated with the manifestation of increased levels of oxidative stress and inflammation. Reactive oxygen species (ROS) production may cause damage to the vasculature that can lead to diseases, such as diabetes, hypertension and atherosclerosis. Anthocyanins are the largest class of flavonoid that are found in vegetables and fruit. Therefore, the combination of anthocyanins and bromelain may be an ideal intervention for improving or maintaining cardiovascular health. We sought to examine the effects of this combination of powerful antioxidants within healthy young adults.

Young healthy adults (n=18) volunteered to participate in this study. Participants were randomly assigned …

Physiological Response To Exercise With Naturally-Occurring Carbon Dioxide Exposure, Megan Johnson

UNO Student Research and Creative Activity Fair

BACKGROUND: Carbon dioxide (CO₂) plays a normal part in gas exchange and acid-base equilibrium in the human body. With added stress or exposure, CO₂ levels can accumulate in the blood and tissues, causing hypercapnia. Research has shown that exposure to CO₂ at 4% or 40,000 ppm will cause cardio-respiratory changes, both at rest and during exercise. Lower levels may still cause changes under conditions of added stress, but this has not been elucidated. Preliminary data from our laboratory chamber suggests physiological changes at levels of CO₂ reaching 0.08% or 8,000 ppm during experiments with exercising …

Effects Of 7°C Environmental Temperature During A 3-Week Training Period, Robert J. Shute

UNO Student Research and Creative Activity Fair

Approximately three weeks is required for cold temperature acclimation to occur. However, the effects of cold temperature acclimation on fitness and performance remain unknown. Purpose: To determine the impact of cold environmental temperature on training adaptations, fitness measurements, and aerobic performance. Methods: Two groups of twelve inactive male subjects completed 1-hour of cycling in fourteen temperature acclimation trials of either a cold (7°C) or room temperature (20°C) environmental temperature. A performance trial and tolerance trial occurred pre- and post-acclimation. The performance trials assessed VO_2peak and body composition. Skin and core temperature were recorded during the 1-hour tolerance trials. Tympanic …