Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
Views
6992
Download
178
from September 2014
 
©Journal of Sports Science and Medicine (2009) 08, 203 - 210

Research article
Variability of Coordination Parameters at 400-M Front Crawl Swimming Pace
Christophe Schnitzler1,2, , Ludovic Seifert1, Didier Chollet1
Author Information
1 University of Rouen, Faculty of Sports Sciences, France
2 University of Strasbourg, Faculty of Sports Sciences, France

Christophe Schnitzler
✉ Marc Bloch University, UFR STAPS, 14, rue R. Descartes, 67000 Strasbourg, France
Email: cschnitzler@ac-strasbourg.fr
Publish Date
Received: 17-08-2008
Accepted: 18-12-2008
Published (online): 01-06-2009
Share this article
 
 
ABSTRACT

This study examined the variability of physiological, perceptual, stroke and coordination parameters in both genders during several swim trials at the 400-m pace speed. Twelve national level competitors (6 men, 6 women) swam 400-m at maximal speed. They then swam three additional trials (100, 200 and 300-m) at the pace (speed) of the previous 400-m. Three cameras were used to determine stroke cycle [speed (V), stroke length (SL), stroke rate (SR)] and coordination [index of coordination (IdC), stroke phases] parameters. Physiological [heart rate (HR) and lactate [La-] and perceptual [subjective workload (TWL)] parameters were assessed after each swim trial. Inter-trial data indicated that HR, [La-] and TWL increased significantly with the distance swum (p < 0.05). Inter-trial comparison did not show significant variation of stroke cycle and coordination parameters. Inter-lap data were examined within the 400-m and showed that V and SL decreased significantly at the beginning of the trial (p < 0.05), but IdC and SR remained unchanged (p > 0.05). Thus, despite changes in both physiological and perceptual responses consecutive to increasing fatigue, coordination parameters remained stable during an all-out 400-m freestyle swim. The examination of these parameters based on short-distance trials appears then to be valid, which offers interesting perspectives for swim testing.

Key words: Testing, motor control, biomechanics, variability, fatigue, competitive swimming.


           Key Points
  • “During a maximal 400-m, fatigue led to an increase in both physiological (heart rate and blood lactate) and perceptual (subjective workload) parameters.
  • The consequence was a decrease in stroke length and therefore in the swimming speed.
  • However, inter-arm coordination did not change during this aerobic task.
  • This indicates that inter-arm coordination can be examined on the basis of short-distance trials rather than on the full distance.
 
 
Home Issues About Authors
Contact Current Editorial board Authors instructions
Email alerts In Press Mission For Reviewers
Archive Scope
Supplements Statistics
Most Read Articles
  Most Cited Articles
 
  
 
JSSM | Copyright 2001-2020 | All rights reserved. | LEGAL NOTICES | Publisher

It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.

This work is licensed under a Creative Commons License Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.