Manioc : Portail | resultats 81 - 100 pour la recherche: Than Min, U.

Éditeur(s) : HAL CCSD Public Library of Science
Résumé : International audience
Growth hormone (GH) may stimulate water loss during exercise by activating sweating. This study investigated GH secretion and water loss during sequential cycling and running, taking postural changes into account. The two exercise segments had similar durations and were performed at the same relative intensity to determine their respective contributions to water loss and the plasma volume variation noted in such trials. Eight elite triathletes first performed an incremental cycle test to assess maximal oxygen consumption. Then, the triathletes performed one of two trials in randomized order: constant submaximal cycling followed by treadmill running (C 1 –R 2) or an inversed succession of running followed by cycling (R 1 –C 2). Each segment of both trials was performed for 20 minutes at ,75% of maximal oxygen consumption. The second trial, reversing the segment order of the first trial, took place two weeks later. During cycling, the triathletes used their own bicycles equipped with a profiled handlebar. Blood sampling (for GH concentrations, plasma viscosity and plasma volume variation) was conducted at rest and after each segment while water loss was estimated from the post-and pre-measures. GH increases were significantly lower in R 2 than C 2 (72.2650.1 vs. 164.06157 ng.ml 21 .min 21 , respectively; P,0.05). Water loss was significantly lower after C 1 –R 2 than R 1 –C 2 (11056163 and 12356153 ml, respectively; P,0.05). Plasma volume variation was significantly negative in C 1 and R 1 (26.1562.0 and 23.1665.0%, respectively; P,0.05), not significant in C 2 , and significantly positive for seven subjects in R 2 (4.0563.1%). We concluded that the lower GH increases in R 2 may have contributed to the smaller reduction in plasma volume by reducing sweating. Moreover, this lower GH response could be explained by the postural change during the transition from cycling to running. We recommend to pay particular attention to their hydration status during R 1 which could limit a potential dehydration during C 2 .
ISSN: 1932-6203

hal-01136734
https://hal.univ-antilles.fr/hal-01136734
https://hal.univ-antilles.fr/hal-01136734/document
https://hal.univ-antilles.fr/hal-01136734/file/Galy%20et%20al.%20-%202014%20-%20Sequential%20exercise%20in%20triathletes%20Variations%20in%20GH%20and%20water%20loss.pdf
DOI : 10.1371/journal.pone.0096145

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An historical survey of the French colony in the island of St. Domingo : comprehending a short account of its ancient government, political state, population, productions, and exports ; a narrative of the calamities which have desolated the country ever since the year 1789, with some reflections on their causes and probable consequences : and a detail of the military transactions of the British army in that island to the end of 1794
Auteur(s) : Edwards, Bryan (1743-1800)
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Two Years in the French West Indies
Auteur(s) : Hearn, Lafcadio (1850-1904)
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Rapport sur les troubles de Saint-Domingue fait au nom de la Commission des colonies, des Comités de salut public, de législation et de marine, réunis. Tome quatrième
Auteur(s) : Garran, Jean-Philippe (1748-1816)
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Précis historique des derniers évènemens de la partie de l'est de Saint-Domingue, depuis le 10 août 1808 jusqu'à la capitulation de Santo-Domingo : avec des notes historiques, politiques et statistiques sur cette partie ; des réflexions sur l'Amérique septentrionale et des considérations sur l'Amérique méridionale, et sur la restauration de Saint-Domingue
Auteur(s) : Guillermin de Montpinay, Gilbert
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Collection des constitutions, chartes et lois fondamentales des peuples de l'Europe et des deux Amériques : avec des précis offrant l'histoire des libertés et des institutions politiques chez les nations modernes, et une table alphabétique raisonnée des matières. Tome VI, [États-Unis (suite), Amérique méridionale, Vénézuela, Colombie]
Auteur(s) : Dufaud, Pierre-Armand (1795-1877) Duvergier, Jean-Baptiste (1792-1877) Guadet, Joseph (1795-1887)
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First global positioning system results in northern Myanmar: Constant and localized slip rate along the Sagaing fault
Auteur(s) : Maurin, Thomas Masson, Frédéric Rangin, Claude Than Min, U. Collard, Philippe
Auteurs secondaires : Centre européen de recherche et d'enseignement de géosciences de l'environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD) - Aix Marseille Université (AMU) - Collège de France (CdF) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) DGDA ; Institut de physique du globe de Strasbourg (IPGS) ; Centre National de la Recherche Scientifique (CNRS) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Institut national des sciences de l'Univers (INSU - CNRS) Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)

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Lettre à un député ou Examen du projet de loi de douane présenté à la chambre des députés le 21 décembre 1832
Auteur(s) : Cools, A. de (17..?-18..)
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