Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/14971
Title: | Optimum projection angle for attaining maximum distance in a rugby place kick |
Authors: | Linthorne, NP Stokes, TG |
Keywords: | Biomechanics;kinematics;projectile |
Issue Date: | 2013 |
Publisher: | Asist Group |
Citation: | Journal of Sports Science and Medicine, 2014, 13 (1), pp. 211 - 216 (6) |
Abstract: | This study investigated the effect of projection angle on the distance attained in a rugby place kick. A male rugby player performed 49 maximum-effort kicks using projection angles of between 20 and 50°. The kicks were recorded by a video camera at 50 Hz and a 2-D biomechanical analysis was conducted to obtain measures of the projection velocity and projection angle of the ball. The player’s optimum projection angle was calculated by substituting a mathematical expression for the relationship between projection velocity and projection angle into the equations for the aerodynamic flight of a rugby ball. We found that the player’s calculated optimum projection angle (30.6°, 95% confidence limits ±1.9°) was in close agreement with his preferred projection angle (mean value 30.8°, 95% confidence limits ±2.1°). The player’s calculated optimum projection angle was also similar to projection angles previously reported for skilled rugby players. The optimum projection angle in a rugby place kick is considerably less than 45° because the projection velocity that a player can produce decreases substantially as projection angle is increased. Aerodynamic forces and the requirement to clear the crossbar have little effect on the optimum projection angle. |
URI: | http://bura.brunel.ac.uk/handle/2438/14971 |
ISSN: | http://bura.brunel.ac.uk/handle/2438/7999 http://bura.brunel.ac.uk/handle/2438/7999 1303-2968 |
Appears in Collections: | Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
D:\4 E-Papers\Electronic Papers\Linthorne Papers\Rugby Place Kick Optimum Angle (Linthorne 2014).pdf | 220.59 kB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.