| Effect of performance level on pacing strategy during a 10-km running race. | |
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MedLine Citation:
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PMID: 20012450 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to examine the influence of the performance level of athletes on pacing strategy during a simulated 10-km running race, and the relationship between physiological variables and pacing strategy. Twenty-four male runners performed an incremental exercise test on a treadmill, three 6-min bouts of running at 9, 12 and 15 km h(-1), and a self-paced, 10-km running performance trial; at least 48 h separated each test. Based on 10-km running performance, subjects were divided into terziles, with the lower terzile designated the low-performing (LP) and the upper terzile designated the high-performing (HP) group. For the HP group, the velocity peaked at 18.8 +/- 1.4 km h(-1) in the first 400 m and was higher than the average race velocity (P < 0.05). The velocity then decreased gradually until 2,000 m (P < 0.05), remaining constant until 9,600 m, when it increased again (P < 0.05). The LP group ran the first 400 m at a significantly lower velocity than the HP group (15.6 +/- 1.6 km h(-1); P > 0.05) and this initial velocity was not different from LP average racing velocity (14.5 +/- 0.7 km h(-1)). The velocity then decreased non-significantly until 9,600 m (P > 0.05), followed by an increase at the end (P < 0.05). The peak treadmill running velocity (PV), running economy (RE), lactate threshold (LT) and net blood lactate accumulation at 15 km h(-1) were significantly correlated with the start, middle, last and average velocities during the 10-km race. These results demonstrate that high and low performance runners adopt different pacing strategies during a 10-km race. Furthermore, it appears that important determinants of the chosen pacing strategy include PV, LT and RE. |
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Authors:
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Adriano E Lima-Silva; Romulo C M Bertuzzi; Flavio O Pires; Ronaldo V Barros; Jo?o F Gagliardi; John Hammond; Maria A Kiss; David J Bishop |
Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2009-12-11 |
Journal Detail:
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Title: European journal of applied physiology Volume: 108 ISSN: 1439-6327 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-02-26 Completed Date: 2010-06-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 1045-53 Citation Subset: IM |
Affiliation:
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Sports Science Research Group, Federal University of Alagoas, Alagoas, Brazil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology* Adult Athletes Athletic Performance / physiology* Behavior / physiology* Competitive Behavior / physiology Humans Male Oxygen Consumption / physiology Physical Endurance / physiology Physical Exertion Running / physiology*, psychology Task Performance and Analysis Time Factors Track and Field Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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