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The Effect Of Dietary Nitrate Supplementation On Physical And Cognitive Performance During Load Carriage In Military Cadets, Nicholas C. Bordonie
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 (VO2max 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 …
Evaluation Of Air Consumption And Work Efficiency In Structural Firefighters, Emily Lynn Langford
Evaluation Of Air Consumption And Work Efficiency In Structural Firefighters, Emily Lynn Langford
Theses and Dissertations--Kinesiology and Health Promotion
INTRODUCTION: For safe and efficient fireground performance, firefighters (FF) must consume air supplied by the self-contained breathing apparatus (SCBA) efficiently while sustaining high work rates. Firefighter research and fire department physical ability assessments typically quantify performance solely on task completion time (i.e., work rate), failing to consider the critical element of air consumption efficiency, which subsequently impacts the SCBA’s functional work duration. PURPOSES: (Arm 1, Aim #1) To examine variability in air consumption (AC) between FF during standardized pace tasks; (Arm 1, Aim #2) To evaluate AC efficiency (ACE) against a recognized metabolic-work rate concept of economy; (Arm …