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dc.creatorCapitán Jiménez, Catalinaes_ES
dc.creatorAragón Vargas, Luis Fernandoes_ES
dc.date.accessioned2012-11-06T20:20:15Zes_ES
dc.date.available2012-11-06T20:20:15Zes_ES
dc.date.issued2012-11-06es_ES
dc.identifier.urihttp://hdl.handle.net/10669/750es_ES
dc.descriptionThis is a slide versión of the of the poster presented at the 2012 American College of Sports Medicine Annual Meetinges_ES
dc.description.abstractPurpose: to determine if Engell’s 9-point subjective scale of thirst perception (TP) is able to detect varying levels of hypohydration after exercise in the heat. In addition, we wished to evaluate the susceptibility of TP measures to changing due to time or a cold shower. Methods: in a repeated-measures design, eight physically active college students (24.5±3.6 years, mean±standard deviation), reported to the laboratory after an overnight fast (10 hours or longer), on four non-consecutive days. They exercised intermittently in a controlled climate chamber (mean temperature and relative humidity: 32±3 °C and 65±6%) to a randomly assigned dehydration equivalent to 0, 1, 2 and 3% of body mass (BM). Following exercise, subjects ingested a fixed volume of water equivalent to 1.20% BM in 30 minutes and TP was evaluated every 30 minutes over 3 hours. Results: Baseline characteristics were not different among conditions (p>0.05). Differences were found for TP (in arbitrary units) among conditions (p=0.012): TP at 0% BM (2.6±1.4) was lower than TP at 2 (6.3±2.3) and 3% BM (8.6±0.5) after exercise (p=0.018 and p<0.0005, respectively). TP at 0 (1.0±0.0) and 1% BM (1.4±0.5) was different from TP at 3% BM (5.1±2.8) after water intake (p=0.025 and p=0.032, respectively). TP was already the same for all conditions 30 min after drinking, (1.1±0.3, 1.1±0.3, 2.6±1.4, and 3.3±2.3 for 0, 1, 2 and 3% BM, respectively, p>0.05); it remained so for 3h. There was no significant difference in TP between two consecutive measures separated by a 30-minute period with a cold shower, but without drinking (t=0.89, 0.00, 1.87, and 1.00 for 0, 1, 2, and 3% BM, respectively, p>0.05). Conclusion: This subjective scale of thirst perception is able to detect levels of hypohydration equivalent to 2% BM or greater. TP is robust but it decreases quickly after drinking (and remains low for 3h) even in the absence of euhydration.es_ES
dc.description.sponsorshipProyecto UCR-VI-245-B0-315 y Gatorade Sports Science Institutees_ES
dc.language.isoen_USes_ES
dc.subjectHydrationes_ES
dc.subjectThirstes_ES
dc.subjectWateres_ES
dc.subjectHidrataciónes_ES
dc.subjectSedes_ES
dc.subjectAguaes_ES
dc.titleThirst perception tracks well with acute dehydration even after a cold showeres_ES
dc.typePresentaciónes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Sociales::Centro de Investigación en Ciencias del Movimiento Humano (CIMOHU)es_ES


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