| Effects of a new evaporative cooling solution during rowing in a warm environment. | |
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MedLine Citation:
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PMID: 20861530 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the effect of Energicer on performance during indoor rowing in a warm environment. METHODS: Eighteen highly trained rowers (age 23.3 ± 6.7 y, height 181.3 ± 6.0 cm, mass 76.7 ± 5.0 kg, peak aerobic power (PAP) 322.1 ± 24.3 W; mean ± SD) performed two indoor rowing trials at 25.0 degrees Celsius and 65.0% relative humidity. Each trial consisted of 10 min at 55% PAP, 5 min of rest, 10 min at 70% PAP, 10 min of rest, and 2000 m time trial. Subjects were randomly assigned to an experimental (COOL) or a placebo (PLA) condition, using a double-blind, crossover design. During COOL, subjects wore sweatbands soaked in Energicer on both forearms; during PLA, they wore identical sweatbands soaked in cool water. Physiological measures and rowing performance were analyzed in a post-test-only crossover design. Magnitude of the difference between treatments was interpreted using the Cohen's effect statistic. RESULTS: No substantial differences were observed in heart rate, blood lactate and RPE between treatments during the submaximal row (COOL 163 ± 10 bpm, 4.3 ± 1.0 mM, 14.5 ± 1.8; PLA 165 ± 11 bpm, 4.8 ± 1.4 mM, 14.6 ± 1.6) and the time trial (COOL 179 ± 9 bpm, 10.7 ± 2.3 mM, 20 ± 0; PLA 179 ± 10 bpm, 11.1 ± 2.2 mM, 20 ± 0). Time (419 ± 11 vs 420 ± 12 s), mean power (305 ± 24 vs 304 ± 26 W), sweat loss (1013 ± 186 vs 981 ± 161 mL) and pacing strategy during the time trial were similar in COOL and PLA. The magnitude of differences between treatments was trivial for all measured variables. CONCLUSION: Energicer failed to provide a substantial benefit during indoor rowing in a warm environment. Whether Energicer is beneficial during more prolonged exercise and/or under more stressful environmental conditions remains to be elucidated. |
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Authors:
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Inigo Mujika; Rafa González De Txabarri; David Pyne |
Publication Detail:
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Type: Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: International journal of sports physiology and performance Volume: 5 ISSN: 1555-0265 ISO Abbreviation: Int J Sports Physiol Perform Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-23 Completed Date: 2010-12-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101276430 Medline TA: Int J Sports Physiol Perform Country: United States |
Other Details:
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Languages: eng Pagination: 412-6 Citation Subset: IM |
Affiliation:
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USP Araba Sport Clinic, Vitoria-Gasteiz, Basque Country. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Alcohols Body Temperature / physiology* Body Temperature Regulation / physiology* Cross-Over Studies Double-Blind Method Exercise / physiology* Exercise Test Heat Stress Disorders / etiology, physiopathology*, prevention & control* Humans Humidity Male Methanol Solutions Sweating / physiology Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Alcohols; 0/Solutions; 67-56-1/Methanol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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