Research Repository

The relationship between foot-ball impact with kick outcome in football kicking

Peacock, James (2018) The relationship between foot-ball impact with kick outcome in football kicking. PhD thesis, Victoria University.

[img]
Preview
Text
PEACOCK, James-Final Thesis_nosignature.pdf - Submitted Version

Download (7MB) | Preview

Abstract

Across the football codes, kicking is the main skill used to score goals and pass between team members. Kicking with high ball velocity and high accuracy is required to kick to targets at far distances or reach a submaximal target in less time. The impact phase is the most important component of the kicking action: it is the only time a player forcefully contacts the ball to produce the flight path. Ensuring high impact efficiency and the appropriate combination of flight characteristics are imparted onto the ball during foot-ball impact is important for successful kicking. The aim of this thesis was to determine how foot-ball impact characteristics influences impact efficiency, ankle plantarflexion, ball flight characteristics and kicking accuracy. By using a mechanical kicking machine to systematically explore impact characteristics and performing an intra-individual analysis of human kickers, high-speed-video analysis of foot-ball impact found impact characteristics influenced impact efficiency, ankle plantarflexion, ball flight characteristics, and kicking accuracy. Increasing ankle joint stiffness, impact locations on the foot closer to the ankle joint, altering foot-ball angle and reducing foot velocity each increased impact efficiency. These results supported the coaching cue ‘maintaining a firm ankle’ during impact as effective at increasing impact efficiency. The impact location between the foot and ball across the medial-lateral direction, foot-ball angle and foot trajectory were each identified as influential to ball flight characteristics and/ or kicking accuracy. The oblique impact theory applied to the duration of impact provided a theoretical framework underpinning how each impact characteristic influenced ball flight characteristics. More consistent performing players produced less kick-to-kick variability in their impact characteristics, while lower kick accuracy was due to errors produced in the combination of impact characteristics. In conclusion, foot-ball impact characteristics were influential to impact efficiency, ankle plantarflexion, ball flight characteristics, and kicking accuracy.

Item Type: Thesis (PhD thesis)
Uncontrolled Keywords: ball velocity; foot velocity; impact efficiency; ankle plantarflexion; ball flight characteristics; kicking accuracy; mechanical kicking machine; ankle joint stiffness; ankle rigidity; drop punt kicking; punt kicking
Subjects: FOR Classification > 1106 Human Movement and Sports Science
Faculty/School/Research Centre/Department > College of Sports and Exercise Science
Depositing User: VUIR
Date Deposited: 10 Jan 2019 22:29
Last Modified: 10 Jan 2019 22:29
URI: http://vuir.vu.edu.au/id/eprint/37861
ePrint Statistics: View download statistics for this item

Repository staff only

View Item View Item

Search Google Scholar