Document Detail


Effect of Warm-up and Precooling on Pacing during a 15-km Cycling Time Trial in the Heat.
MedLine Citation:
PMID:  23038703     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: The best way to apply precooling for endurance exercise in the heat is still unclear. Therefore, we analyzed the effect of different preparation regimes on pacing during a 15-km cycling time trial in the heat. METHODS: Ten male subjects completed four 15-km time trials (30°C), preceded by different preparation regimes: 10 min cycling (WARM-UP), 30 min scalp cooling of which 10 min cycling (SC+WARM-UP), ice slurry ingestion (ICE), and ice slurry ingestion + 30 min scalp cooling (SC+ICE). RESULTS: No differences were observed in finish time and mean power output, although power output was lower for WARM-UP than for SC+ICE during km 13-14 (17±16 and 19±14 W, respectively) and for ICE during km 13 (16±16 W). Rectal temperature at the start of the time trial was lower for both ICE (~36.7°C) than both WARM-UP (~37.1°C) conditions and remained lower during the first part of the trial. Skin temperature and thermal sensation were lower at the start for SC+ICE. CONCLUSIONS: The preparation regime providing the lowest body heat content and sensation of coolness at the start (SC+ICE) was most beneficial for pacing during the latter stages of the time trial, although overall performance did not differ.
Authors:
Koen Levels; P J Teunissen L; Arnold de Haan; Jos J de Koning; Bernadet van Os; A M Daanen H
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-2
Journal Detail:
Title:  International journal of sports physiology and performance     Volume:  -     ISSN:  1555-0265     ISO Abbreviation:  Int J Sports Physiol Perform     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101276430     Medline TA:  Int J Sports Physiol Perform     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat, Amsterdam, and also with TNO, Behavioural and Societal Sciences, Training and Performance Innovations, Soesterberg, The Netherlands.
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