Kinematical modifications induced by the introduction of the lateral inspiration in butterfly stroke

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Bibliographic Details
Title translated into German:Kinematische Veränderungen, die durch die laterale Atmung beim Schmetterlingsschwimmen hervorgerufen werden
Author:Barbosa, Tiago; Sousa, Filipa; Vilas-Boas, J. Paulo
Published in:Biomechanics and medicine in swimming VIII : Proceedings of the International Symposium on Biomechanics and Medicine in Swimming. University of Jyväskyla, Finland June 28 - July 2, 1998
Published:Jyväskylä: Press of the Univ. of Jyväskylä (Verlag), 1999, S. 15-19, Lit.
Format: Publications (Database SPOLIT)
Publication Type: Compilation article
Media type: Print resource
Online Access:
Identification number:PU200110000336

Author's abstract

The purpose of this study was to find eventual variations on kinematical parameters, on Butterfly stroke, induced by the introduction of lateral inspiration, in young swimmers. Seven young swimmers (4 males and 3 females), of national level, were studied. Two video cameras (JVC GR-SX 1 SVHS) were used simultaneously. One camera was set in an underwater window on a lateral wall of the pool, obtaining images on the sagittal plane. The other camera was set on the forehead wall of the pool, obtaining images on the transverse plane. The images were evaluated using the «Peak 5 - Motion Measurement System», from Peak Performance Technology, Inc. The results of this study pointed out that: 1. analysing the images obtained on the sagittal plane, there weren't significant differences on the kinematics of any corporal segment studied, except for the head; 2. the maximal vertical amplitude of the head displacement and the slope of the head displacement are significantly smaller when using lateral inspiration; 3. the minimal angle between the head and the horizontal plane and the minimal angle between the dorsal fin and the horizontal plane are significantly smaller using lateral inspiration; 4. the maximal angle between the shoulders and the horizontal plane is significantly higher using lateral inspiration; 5. it seems there is a rotation around the longitudinal axis of the whole body when lateral inspiration has been used. Verf.-Referat