Document Detail


Kinematical changes in swimming front Crawl and Breaststroke with the AquaTrainer snorkel.
MedLine Citation:
PMID:  20379828     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of the present study was to assess the kinematical changes when swimming maximal bouts in Front Crawl and Breaststroke with the AquaTrainer snorkel. Thirteen male swimmers (7 at Breaststroke and 6 at Front Crawl) of national level performed randomly two maximal bouts of 100-m swims: one bout using the AquaTrainer snorkel (snorkel swim) and another one without the snorkel (free swim). The swims were videotaped in sagittal plane with a pair of cameras providing 2D kinematics evaluation. The following measures were assessed: swimming performance (T100), stroke cycle period (P), stroke rate (SR), stroke length (SL), swimming velocity (v), swimming efficiency as estimated by the stroke index (SI), speed fluctuation (dv) and the mathematical characterisation of dv. T100 was significantly higher when swimming with the snorkel than in free swimming at Breaststroke (Delta = 6.26%) and at Front Crawl (Delta = 4.75%). P, SR and SL, as well as SI and dv did not present significant differences. The main finding of the study was that changes in the swimming velocity imposed by the use of the Aquatrainer do not seem due to changes in general kinematics or swimming efficiency.
Authors:
Tiago Barbosa; António José Silva; António Malvas Reis; Mário Costa; Nuno Garrido; Fernando Policarpo; Victor Machado Reis
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-09
Journal Detail:
Title:  European journal of applied physiology     Volume:  109     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-23     Completed Date:  2010-11-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1155-62     Citation Subset:  IM    
Affiliation:
Department of Sports Sciences, Polytechnic Institute of Bragança, Bragança, Portugal.
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MeSH Terms
Descriptor/Qualifier:
Arm / physiology*
Athletic Performance / physiology*
Biomechanics
Humans
Male
Physical Exertion / physiology*
Sports Equipment*
Swimming / physiology*
Young Adult

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


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