Key parameters of the swimming start and their relationship to start performance
Deutscher übersetzter Titel: | Schlüsselparameter des Startsprungs beim Schwimmen und seine Beziehung zur Startleistung |
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Autor: | Tor, Elaine; Pease, David L.; Ball, Kevin A. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 33 (2015), 13, S. 1313-1321, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2014.990486 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201508006355 |
Quelle: | BISp |
Abstract
The swimming start is typically broken into three sub-phases; on-block, flight, and underwater phases. While overall start performance is highly important to elite swimming, the contribution of each phase and important technical components within each phase, particularly with the new kick-start technique, has not been established. The aim of this study was to identify technical factors associated with overall start performance, with a particular focus on the underwater phase. A number of parameters were calculated from 52 starts performed by elite freestyle and butterfly swimmers. These parameters were split into above-water and underwater groupings, before factor analysis was used to reduce parameter numbers for multiple regression. For the above-water phases, 81% of variance in start performance was accounted for by take-off horizontal velocity. For the underwater water phase, 96% of variance was accounted for with time underwater in descent, time underwater in ascent and time to 10 m. Therefore, developing greater take-off horizontal velocity and focussing on the underwater phase by finding the ideal trajectory will lead to improved start performance. Verf.-Referat