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Purdue University

Journal of Human Performance in Extreme Environments

Nutrition

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

The Effects Of Energy Intake On Upper Respiratory Symptoms In Ultra-Endurance Triathletes, Yasuki Sekiguchi, Deanna M. Dempsey, Rebecca L. Stearns, Jun Hashiwaki, Robert A. Huggins, Laura J. Kunces, J. Luke Pryor, Riana R. Pryor, Brittanie M. Volk, Jenna M. Bartley, Douglas J. Casa Dec 2021

The Effects Of Energy Intake On Upper Respiratory Symptoms In Ultra-Endurance Triathletes, Yasuki Sekiguchi, Deanna M. Dempsey, Rebecca L. Stearns, Jun Hashiwaki, Robert A. Huggins, Laura J. Kunces, J. Luke Pryor, Riana R. Pryor, Brittanie M. Volk, Jenna M. Bartley, Douglas J. Casa

Journal of Human Performance in Extreme Environments

Background: It is unclear whether energy intake can impact the incidence of upper respiratory symptoms (URS). The purpose of this study was to examine if there are differences in energy intake between symptomatic (SYM) and asymptomatic (ASYM) groups of URS in Ironman-triathletes. Methods: Thirty-three subjects competing in the Lake Placid Ironman-triathlon (mean±SD; age,37±8y; height,178±8cm; mass,76.3±10.4kg; body fat,10.8±3.8%) were randomized into either the control (CON) or intervention (INT). INT consumed 4-commercial recovery drinks, two immediately post-race and two 3-hours post-race. Calorie and macronutrient intake were recorded pre-, during, and post-race. Subjects completed the Wisconsin URS Survey to assess URS over the …


A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal Dec 2020

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal

Journal of Human Performance in Extreme Environments

In the event that submariners become trapped aboard a disabled submarine (DISSUB), they must perform a multitude of cognitively demanding tasks in order to maximize their likelihood of survival. During this time, submariners will also be forced to endure poor living conditions, including drastic changes to their nutrition. These nutritional changes have the potential to impair submariners’ cognitive functioning and affect operational performance, which could jeopardize survival; however, the effects of DISSUB nutrition on cognitive performance are not well understood. This review first describes the unique nutritional conditions that submariners will experience in a DISSUB scenario, including the change to …