A kinematic analysis of rugby lineout throwing

Gespeichert in:
Bibliographische Detailangaben
Deutscher übersetzter Titel:Eine kinematische Analyse des Gassen-Wurfes im Rugby
Autor:Trewartha, Grant; Casanova, Remy; Wilson, Cassie
Erschienen in:Journal of sports sciences
Veröffentlicht:26 (2008), 8, S. 845-854, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Elektronische Ressource (online) Gedruckte Ressource
Sprache:Englisch
ISSN:0264-0414, 1466-447X
DOI:10.1080/02640410701885629
Schlagworte:
Online Zugang:
Erfassungsnummer:PU201502001125
Quelle:BISp

Abstract

To characterize rugby union lineout throwing technique, three experienced male rugby players performed throwing trials under varying conditions of distance and trajectory. Motion analysis permitted the recovery of joint centre coordinates at 120 Hz and the construction of a three-dimensional linked segment model for calculation of joint angle and centre of mass time histories. All participants exhibited greater accuracy at shorter throwing distances, although the accuracy decrement was less in players of higher standard. Participants demonstrated different alterations in technique when performing throws of longer distances, either showing increased magnitudes of upper-body joint angle velocities (less accurate thrower) or lowerbody joint velocities (more accurate thrower). The most elite thrower exhibited greater consistency in timing of peak joint angle velocities, with an overall standard deviation of 0.008 s compared with 0.027 s for the least accurate thrower. Data from participants of lesser ability suggest that changes are made to both magnitudes and timing of joint kinematics, which leads to increased variability in performance. The implications for players and coaches include the need to develop core strength to permit limited changes to the timing and magnitude of upper-body joint actions while allowing sufficient endpoint velocity to be imparted on the ball. Verf.-Referat