Throwing Velocity and Efficacy During Water Polo Matches
Abraldes J.A1, *, Vila H2, Ferragut C3, Rodriguez N4, Fernandes R5
Identifiers and Pagination:Year: 2012
First Page: 141
Last Page: 145
Publisher Id: TOSSJ-5-141
Article History:Received Date: 12/12/2012
Revision Received Date: 09/06/2012
Acceptance Date: 21/06/2012
Electronic publication date: 19/10/2012
Collection year: 2012
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Our objective was to assess throwing frequency, velocity, place of execution and efficacy during an European Water Polo Championship. The playing field was divided in five zones (1 to 5) based on the distance from goal: 0-2m, 2- 5m, 5m to midfield, over midfield and penalty mark, and the throwing velocity was assessed using a radar (frequency of 100Hz and sensitivity of 0.045m·s-1). After a descriptive analysis, differences in throwing velocity between throwing zones were tested using a repeated measures ANOVA (with the Bonferroni post-hoc test), and differences between genders and goal/no goal situations were obtained using an independent measures T-Test (p<0.05). Results showed that ~93% of the throws were made from the 2m and the middle field lines, and that the highest throwing velocities were obtained from the penalty mark. Female and male players presented higher throwing velocities in the most remote areas compared to those closest to the goal. When genders were compared, female players evidence lower throwing velocity in all field zones compared to male counterparts, with the exception of zone 1. This is observable also when considering throwing efficacy, once it occurs in each field zone in both goal and no goal conditions. When analysing the throwing velocity by field zones regarding throwing efficacy, in general no significant differences were found between the goalscoring shots and the non-scoring shots (for both genders), excepting the zone 3 for the total sample, in which higher values when scoring were observed. Future studies should analyse the specific player positions and focus on World Wide tournaments.