Document Detail


Kinematical profiling of the front crawl start.
MedLine Citation:
PMID:  20029735     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study analysed the start phases of 15 elite front crawl swimmers, all specialists of sprint events. The first aim was to determine which phases were correlated with the 15-m start time. The features common to the sample of swimmers were then established and individual profiles were clustered. The subjects performed two 25-m trials at the 50-m race-pace using their preferential start technique (grab start). The kinematical analysis assessed the durations of the block, flight, entry, glide, leg kicking and full swimming phases to the 15-m mark. Stroking parameters and the index of arm coordination (IdC) were analysed for the swimming part (10-20 m) of the 25-m. Through the swimming part IdC increased while stroke length and velocity decreased (p<0.05). The relative durations of the aerial (block, flight), entry and underwater phases were correlated with start time. Inter-subject variability was observed, which suggests that various motor solutions were used for the start. Notably, four clusters led to a short 15-m start time: the leg kicking style, mixed "leg kicking/swimming" style, long glide style and short glide style.
Authors:
J Vantorre; L Seifert; R J Fernandes; J P V Boas; D Chollet
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Publication Detail:
Type:  Journal Article     Date:  2009-12-22
Journal Detail:
Title:  International journal of sports medicine     Volume:  31     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2009-12-23     Completed Date:  2010-03-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  16-21     Citation Subset:  IM    
Copyright Information:
Georg Thieme Verlag KG Stuttgart, New York.
Affiliation:
Faculty of Sport Sciences, CETAPS UPRES EA 3832, MONT SAINT AIGNAN, France.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Athletic Performance / physiology*
Biomechanics
Cluster Analysis
Humans
Male
Swimming / physiology*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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