Search Results - "CHEUVRONT, SAMUEL N."

Hypohydration and Human Performance: Impact of Environment and Physiological Mechanisms by Sawka, Michael N., Cheuvront, Samuel N., Kenefick, Robert W.

“…Body water losses of >2 % of body mass are defined as hypohydration and can occur from sweat loss and/or diuresis from both cold and altitude exposure…”
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Hydration for recreational sport and physical activity by Kenefick, Robert W, Cheuvront, Samuel N

“…This review presents recommendations for fluid needs and hydration assessment for recreational activity. Fluid needs are based on sweat losses, dependent on…”
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High skin temperature and hypohydration impair aerobic performance by Sawka, Michael N., Cheuvront, Samuel N., Kenefick, Robert W.

“…This paper reviews the roles of hot skin (>35°C) and body water deficits (>2% body mass; hypohydration) in impairing submaximal aerobic performance. Hot skin…”
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Earlier Boston Marathon Start Time Mitigates Environmental Heat Stress by CHEUVRONT, SAMUEL N., CALDWELL, AARON R., CHEUVRONT, PARKER J., KENEFICK, ROBERT W., TROYANOS, CHRIS

“…Historical environmental data from the Boston Marathon affords a pragmatic opportunity to retrospectively quantify how the 2007 earlier start time altered the…”
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Effects of body size and countermeasure exercise on estimates of life support resources during all-female crewed exploration missions by Scott, Jonathan P. R., Green, David A., Weerts, Guillaume, Cheuvront, Samuel N.

“…Employing a methodology reported in a recent theoretical study on male astronauts, this study estimated the effects of body size and aerobic countermeasure…”
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Effect of Hypohydration on Muscle Endurance, Strength, Anaerobic Power and Capacity and Vertical Jumping Ability: A Meta-Analysis by Savoie, Félix-Antoine, Kenefick, Robert W., Ely, Brett R., Cheuvront, Samuel N., Goulet, Eric D. B.

“…Background How hypohydration impacts non-bodyweight (BW)-dependent muscle performance and vertical jumping ability remains to be determined using meta-analytic…”
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Impact of weather on marathon-running performance by ELY, Matthew R, CHEUVRONT, Samuel N, ROBERTS, William O, MONTAIN, Scott J

“…Marathon running performance slows in warm weather conditions, but the quantitative impact of weather has not been established. To quantify the impact of…”
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Can an amino acid mixture alleviate gastrointestinal symptoms in neuroendocrine tumor patients? by Chauhan, Aman, Das, Satya, Miller, Rachel, Luque, Laura, Cheuvront, Samuel N, Cloud, James, Tarter, Zach, Siddiqui, Fariha, Ramirez, Robert A, Anthony, Lowell

“…Neuroendocrine tumors, although relatively rare in incidence, are now the second most prevalent gastrointestinal neoplasm owing to indolent disease biology. A…”
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Influence of prior illness on exertional heat stroke presentation and outcome by King, Michelle A, Ward, Matthew D, Mayer, Thomas A, Plamper, Mark L, Madsen, Clifford M, Cheuvront, Samuel N, Kenefick, Robert W, Leon, Lisa R

“…Precipitating factors that contribute to the severity of exertional heat stroke (EHS) are unclear. The purpose of this study was to determine the effect of…”
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Osmolality of Commercially Available Oral Rehydration Solutions: Impact of Brand, Storage Time, and Temperature by Sollanek, Kurt J, Kenefick, Robert W, Cheuvront, Samuel N

“…Oral rehydration solutions (ORS) are specifically formulated with an osmolality to optimize fluid absorption. However, it is unclear how many ORS products…”
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Forecasting individual exercise sweat losses from forecast air temperature and energy expenditure by Cheuvront, Samuel N, Sollanek, Kurt J, Kenefick, Robert W

“…Recent success in predicting individual sweat losses from air temperature and energy expenditure measurements suggests a potential for forecasting individual…”
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Estimation of human core temperature from sequential heart rate observations by Buller, Mark J, Tharion, William J, Cheuvront, Samuel N, Montain, Scott J, Kenefick, Robert W, Castellani, John, Latzka, William A, Roberts, Warren S, Richter, Mark, Jenkins, Odest Chadwicke, Hoyt, Reed W

“…Core temperature (CT) in combination with heart rate (HR) can be a good indicator of impending heat exhaustion for occupations involving exposure to heat,…”
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Effect of Ambient Temperature on Marathon Pacing Is Dependent on Runner Ability by ELY, Matthew R, MARTIN, David E, CHEUVRONT, Samuel N, MONTAIN, Scott J

“…Warmer weather negatively impacts the finishing time of slower marathon (42.2 km) runners more than faster runners. How warmer weather impacts runners'…”
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Predicted sweat rates for group water planning in sport: accuracy and application by Cheuvront, Samuel N, Sollanek, Kurt J, Baker, Lindsay B

“…This study tested the accuracy of a novel, limited-availability web application (H 2 Q™) for predicting sweat rates in a variety of sports using estimates of…”
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Evidence against a 40{degrees}C core temperature threshold for fatigue in humans by Ely, Brett R, Ely, Matthew R, Cheuvront, Samuel N, Kenefick, Robert W, DeGroot, David W, Montain, Scott J

“…1 Thermal and Mountain Medicine Division and ; 2 Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick,…”
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A simple and valid method to determine thermoregulatory sweating threshold and sensitivity by Cheuvront, Samuel N, Bearden, Shawn E, Kenefick, Robert W, Ely, Brett R, DeGroot, David W, Sawka, Michael N, Montain, Scott J

“…1 United States Army Research Institute of Environmental Medicine, Natick, Massachusetts; and 2 Department of Biological Sciences, Idaho State University,…”
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Sweat mineral-element responses during 7 h of exercise-heat stress by Montain, Scott J, Cheuvront, Samuel N, Lukaski, Henry C

“…Uncertainty exists regarding the effect of sustained sweating on sweat mineral-element composition. To determine the effect of multiple hours of exercise-heat…”
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Biological and analytical variation of the human sweating response: implications for study design and analysis by Kenefick, Robert W, Cheuvront, Samuel N, Elliott, Leonard D, Ely, Brett R, Sawka, Michael N

“…Appropriate quantification of analytical and biological variation of thermoregulatory sweating has important practical utility for research design and…”
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Epidemiology of hospitalizations and deaths from heat illness in soldiers by CARTER, Robert III, CHEUVRONT, Samuel N, WILLIAMS, Jeffrey O, KOLKA, Margaret A, STEPHENSON, Lou A, SAWKA, Michael N, AMOROSO, Paul J

“…Serious heat illness has received considerable recent attention due to catastrophic heat waves in the United States and Europe, the deaths of high-profile…”
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Effect of hypohydration and altitude exposure on aerobic exercise performance and acute mountain sickness by CASTELLANI, John W, MUZA, Stephen R, CHEUVRONT, Samuel N, SILS, Ingrid V, FULCO, Charles S, KENEFICK, Robert W, BEIDLEMAN, Beth A, SAWKA, Michael N

“…Hypoxia often causes body water deficits (hypohydration, HYPO); however, the effects of HYPO on aerobic exercise performance and prevalence of acute mountain…”
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