Comparison of Changes in Angles Between Arm and Forearm and Between Arm and Trunk in The Vertical Position in Synchronized Swimmers on Various Sports Levels
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2004, Vol 14, Issue 28
Abstract
Purpose of the work. The aim of the study is to present the research capacity of computer method of measuring and analysis of underwater movement technique, the assessment of selected elements of underwater movement technique in synchronized swimming, the comparison of changes in selected angles of the upper limb during one cycle of supporting movement in the Vertical position. Matherial and methods. The study material comprised five female synchronized swimmers on various levels of technical advancement and of various ages. The study was carried out with the use of a system of devices for the analysis and assessment of technique of movements in water developed in the Department of Swimming and Water Rescue of the University School of Physical Education in Poznań. Results. Visual observation combined with computer analysis has allowed to divide the cycle in supporting movement in the Vertical position into phases: water grip, gathering, sweep and preparation. The article presents changes in angles between arm and forearm as well as between arm and trunk during individual phases of the studied movement with their duration. The course of the underwater movement was compared between swimmers. The degree of asymmetry between the movement of the right and left upper limbs was assessed. Conclusions. It was found that in order to maintain the full height of the performed position the phases of water grip and gathering should be mastered in particular. The maintaining of the angle within the range of 90 to 110 between the arm and the forearm in the sweep phase guarantees stability of the Vertical position. Any deviations from this value of the angle result in upsetting the stability forward (if the angle is greater) or backward (if the angle is smaller) and thus maintaining of the Vertical position is impossible.
Authors and Affiliations
Małgorzata Habiera, Elżbieta Rostkowska
Keywords
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