Browsing Nutrición by Author "3be67d7e-15d5-4d56-8ce3-ac4e441b4594"
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Acute Hepatic Response to Diet Modification and Exercise-induced Endotoxemia during a Laboratory-based Duathlon
Moncada Jiménez, José; Plaisance, Eric Paul; Araya Ramírez, Felipe; Taylor, James K.; Ratcliff, Lance; Mestek, Michael L.; Grandjean, Peter Walter; Aragón Vargas, Luis Fernando (2010-01)The purpose of the study was to compare the acute hepatic response to diet modification and exercise-induced endotoxemia, and to determine if associations exist between liver damage markers, body core temperature, and ... -
Análisis de los efectos de un entrenamiento localizado y generalizado en los valores individuales de panículos adiposos, circunferencias y peso corporal
Madriz Dávila, Karol; Aragón Vargas, Luis Fernando (1997-10)Este estudio fue un primer intento por verificar si es posible o no provocar una disminución localizada de la grasa subcutánea por medio de ejercicios localizados. La calidad del estudio es muy limitada; se incluye en el ... -
Attività fisica ed idratazione: quando l’acqua non basta
Aragón Vargas, Luis Fernando (2005-10)During sports training and games, thermoregulation may be a challenge when environmental conditions are hot and/or humid. In addition, limited opportunities to drink may promote dehydration and exacerbate the thermoregulatory ... -
Awareness of Fluid Losses Does Not Impact Thirst during Exercise in the Heat: A Double-Blind, Cross-Over Study
Capitán Jiménez, Catalina; Aragón Vargas, Luis Fernando (2021-12-03)Background: Thirst has been used as an indicator of dehydration; however, as a perception, we hypothesized that it could be affected by received information related to fluid losses. The purpose of this study was to ... -
Cerveza como rehidratante
Aragón Vargas, Luis Fernando (2014-10-10)Entrevista televisiva del Doctor Gustavo Gutierrez Espeleta en el programa ConCiencia (Canal UCR) a los investigadores Rebeca Flores y Luis Fernando Aragón sobre los resultados de su imvestigación sobre la cerveza como ... -
Cómo distinguir entre la ciencia y la especulación en la nutrición deportiva
Aragón Vargas, Luis Fernando (1998)Se analiza cómo muchas personas son presa de su propio deseo de lograr resultados sin hacer el esfuerzo correspondiente. Además, se presentan sugerencias sobre cómo discernir la afirmaciones falsas de las que quizás sí ... -
DATASET for Voluntary hydration with milk during exercise in the heat: exploring effectiveness and tolerance
Aragón Vargas, Luis Fernando; Garzón Mosquera, Julián Camilo; Montoya Arroyo, Johnny Alberto (2023-03)This database has the complete data set for the study entitled "Voluntary hydration with milk during exercise in the heat: exploring effectiveness and tolerance", collected between March 2021 and March 2022 as part of ... -
Detection of Euhydration in Humans from the Diuresis Response to a Water Load
Capitán Jiménez, Catalina; Aragón Vargas, Luis Fernando (2011-09-30)Aim: to calculate the minimum amount of water to be ingested in order to find significant differences in one-hour urine volume between euhydrated and dehydrated humans. Methods: Five participants (22.6±2.9 years old, ... -
Efecto del ayuno en el rendimiento físico en hombres
Beltranena Falla de Enríquez, María Mercedes; Aragón Vargas, Luis Fernando; Salazar Rojas, Wálter (1997-10)Esta es una investigación preliminar sobre ayuno y rendimiento físico que se presentó en el IV Simposio Internacional en Ciencias del Deporte y la Salud, UCR. Fue parte de un estudio más completo y formal que se presentó ... -
Efeitos da Desidratação no Rendimento Físico e na Saúde
Aragón Vargas, Luis Fernando (2001)As pessoas fisicamente ativas devem prestar atenção a sua hidratação. A desidratação tem efeitos negativos sobre o funcionamento do corpo, que vão desde pequenas diminuições no rendimento físico, até problemas por calor ... -
Effects of fasting on endurance exercise
Aragón Vargas, Luis Fernando (1993)Early studies agree that fasting is detrimental to overall physical performance and to endurance performance in humans; however, a study in rats reporte an ergogenic effect where time to exhaustion was increased by a ... -
Effects of fasting on endurance exercise in adult males: preliminary evidence for a "nocebo" effect
Beltranena Falla de Enríquez, María Mercedes; Aragón Vargas, Luis Fernando; Salazar Rojas, Wálter (1998)The literature has repeatedly reported a negative effect of fasting on endurance exercise in humans. The goal of this study was to test the hypothesis that endurance performance is susceptible to a “negative placebo” or ... -
La eliminación de orina en respuesta a una ingesta de agua es consistente en personas bien hidratadas
Capitán Jiménez, Catalina; Aragón Vargas, Luis Fernando (2010-12)Recientemente se ha propuesto un método sencillo para evaluar el estado agudo de hidratación en humanos, pero persisten varias preguntas con respecto a su confiabilidad, validez y utilidad práctica. ... -
Elimination of urine in response to water intake is consistent in well-hydrated individuals
Capitán Jiménez, Catalina; Aragón Vargas, Luis Fernando (2010-12)A simple method has been recently proposed to assess acute hydration status in humans; however, several questions remain regarding its reliability, validity, and practicality. Objective:Establish ... -
Evaluación del efecto de la espirulina para reducción de peso en mujeres universitarias
Beltranena Falla de Enríquez, María Mercedes; Aragón Vargas, Luis Fernando; Salazar Rojas, Wálter (1996)Este estudio evaluó el efecto del alga espirulina en el tratamiento de reducción de peso en 15 mujeres universitarias, grupo control (n=7) y grupo experimental (n=8). El tratamiento consistió en tres tomas de una cápsula ... -
Evaluation Of A Real Life Desire-to-drink Scale
Capitán Jiménez, Catalina; Tenorio Fallas, Álvaro; Aragón Vargas, Luis Fernando (2016)PURPOSE:to determine the strength of the association between the amount of fluid people say they want to drink after exercise and the actual amount of fluid intake within 30 min post-exercise. -
Hidratación para la actividad física
Aragón Vargas, Luis Fernando (Memoria del III Simposio en Ciencias del Ejercicio y la Salud, 1996-10)El conocimiento científico sobre este tema ha evolucionado considerablemente desde la publicación de este manuscrito en 1996; por ejemplo, en ese tiempo se le prestaba poca o ninguna atención a las complicaciones de la ... -
Incomplete warm-climate post-exercise rehydration with water, coconut water, or a sports drink
Madriz Dávila, Karol; Aragón Vargas, Luis Fernando (Medicine & Science in Sports & Exercise, 32(5s), 238., 2011-10-01)It is common to find mild to serious dehydration during exercise in hot, humid conditions. To restore euhydration, the literature shows that a fluid volume larger than sweat loss should be ingested post-exercise; ingestion ... -
Influence of Mild Dehydration on Exercise Performance
Aragón Vargas, Luis Fernando (2001-12)This presentation summarizes some initial evidence for an impairment of exercise performance due to mild dehydration. An attempt is made at defining mild dehydration, and preliminary hypotheses are presented. -
Metabolic and Performance Responses to Carbohydrate Intake During Exercise
Aragón Vargas, Luis Fernando (2000-09)During exercise, an adequate supply of substrates is required for the continuing resynthesis of ATP in working muscles. Muscle fibers have limited stores of creatine phosphate, glycogen, and triglycerides and so must also ...