Anaerobic performance when rehydrating with water or commercially available sports drinks during prolonged exercise in the heat

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dc.contributor.authorDel Coso, Juan
dc.contributor.authorEstevez, Emma
dc.contributor.authorBaquero, Raúl Antonio
dc.contributor.authorMora-Rodriguez, Ricardo
dc.date.accessioned2020-08-31T07:58:09Z
dc.date.available2020-08-31T07:58:09Z
dc.date.issued2008
dc.description.abstractenglishThe effects that rehydrating drinks ingested during exercise may have on anaerobic exercise performance are unclear. This study aimed to determine which of four commercial rehydrating drinks better maintains leg power and force during prolonged cycling in the heat. Seven endurance-trained and heat-acclimatized cyclists pedaled for 120 min at 63% maximum oxygen consumption in a hot, dry environment (36 degrees C; 29% humidity, 1.9 m.s-1 airflow). In five randomized trials, during exercise, subjects drank 2.4 +/- 0.1 L of (i) mineral water (WAT; San Benedetto), (ii) 6% carbohydrate-electrolyte solution (Gatorade lemon), (iii) 8% carbohydrate-electrolyte solution (Powerade Citrus Charge), (iv) 8% carbohydrate-electrolyte solution with lower sodium concentration than other sports drinks (Aquarius orange), or (v) did not ingest any fluid (DEH). Fluid balance, rectal temperature (Trec), maximal cycling power (Pmax), and leg maximal voluntary isometric contraction (MVC) were measured. During DEH, subjects lost 3.7 +/- 0.2% of initial body mass, whereas subjects lost only 0.8% +/- 0.1% in the other trials (p < 0.05). Final Trec was higher in DEH than in the rest of the trials (39.4 +/- 0.1 degrees C vs. 38.7 +/- 0.1 degrees C; p < 0.05). Pmax was similar among all trials. Gatorade and Powerade preserved MVC better than DEH (-3.1% +/- 2% and -3.8% +/- 2% vs. -11% +/- 2%, p < 0.05), respectively, whereas WAT and Aquarius did not (-6% +/- 2%). Compared with DEH, rehydration with commercially available sports drinks during prolonged exercise in the heat preserves leg force, whereas rehydrating with water does not. However, low sodium concentration in a sports drink seems to preclude its ergogenic effects on force.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1139/h07-188
dc.identifier.instnameinstname:Universidad El Bosquespa
dc.identifier.issn17155312
dc.identifier.reponamereponame:Repositorio Institucional Universidad El Bosquespa
dc.identifier.repourlhttps://repositorio.unbosque.edu.co
dc.identifier.urihttps://hdl.handle.net/20.500.12495/3873
dc.language.isoeng
dc.publisherNational Research Council of Canadaspa
dc.publisher.journalApplied Physiology, Nutrition, and Metabolismspa
dc.relation.ispartofseriesApplied Physiology, Nutrition, and Metabolism, 17155312, Vol. 33, Nro. 2, 2008 p. 290-298spa
dc.relation.urihttps://www.nrcresearchpress.com/doi/10.1139/H07-188?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub++0pubmed&#.XysWnihKhQI
dc.rights.accessrightshttps://purl.org/coar/access_right/c_abf2
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.rights.accessrightsAcceso abierto
dc.rights.creativecommons2008
dc.rights.localAcceso abiertospa
dc.subject.decsFenómenos fisiológicos cardiovascularesspa
dc.subject.decsProcesos patológicosspa
dc.subject.decsDeshidrataciónspa
dc.subject.keywordsMaximal voluntary contractionspa
dc.subject.keywordsMaximal cycling powerspa
dc.subject.keywordsSodium balancespa
dc.subject.keywordsDehydrationspa
dc.subject.keywordsRectal temperaturespa
dc.titleAnaerobic performance when rehydrating with water or commercially available sports drinks during prolonged exercise in the heatspa
dc.title.translatedAnaerobic performance when rehydrating with water or commercially available sports drinks during prolonged exercise in the heatspa
dc.type.coarhttps://purl.org/coar/resource_type/c_6501
dc.type.driverinfo:eu-repo/semantics/article
dc.type.hasversioninfo:eu-repo/semantics/publishedVersion
dc.type.localArtículo de revista

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