Player acceleration and deceleration profiles in professional Australian football

Johnston, RJ; Watsford, ML; Austin, D; Pine, MJ; Spurrs, RW

Player acceleration and deceleration profiles in professional Australian football

Johnston, RJ Watsford, ML

Austin, D Pine, MJ Spurrs, RW

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Publication Type:: Journal Article
Citation:: Journal of Sports Medicine and Physical Fitness, 2015, 55 (9), pp. 931 - 939
Issue Date:: 2015-09-01

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Field	Value	Language
dc.contributor.author	Johnston, RJ	en_US
dc.contributor.author	Watsford, ML https://orcid.org/0000-0002-4569-6377	en_US
dc.contributor.author	Austin, D	en_US
dc.contributor.author	Pine, MJ	en_US
dc.contributor.author	Spurrs, RW	en_US
dc.date.issued	2015-09-01	en_US
dc.identifier.citation	Journal of Sports Medicine and Physical Fitness, 2015, 55 (9), pp. 931 - 939	en_US
dc.identifier.issn	0022-4707	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41854
dc.description.abstract	This study aimed to determine the validity and reliability of global positioning system (GPS) units for measuring a standardized set of acceleration and deceleration zones and whether these standardized zones were capable of identifying differences between playing positions in professional Australian football. Eight well trained male participants were recruited to wear two 5 Hz or 10 Hz GPS units whilst completing a team sport simulation circuit to measure acceleration and deceleration movements. For the second part of this article 30 professional players were monitored between 1-29 times using 5 Hz and 10 Hz GPS units for the collection of acceleration and deceleration movements during the 2011 and 2012 Australian Football League seasons. Players were separated into four distinct positional groups - nomadic players, ixed defenders, ixed forwards and ruckman. The GPS units analysed had good to poor levels of error for measuring the distance covered (<19.7%), time spent (<17.2%) and number of efforts performed (<48.0%) at low, moderate and high acceleration and deceleration zones. The results demonstrated that nomadic players and ixed defenders perform more acceleration and deceleration efforts during a match than ixed forwards and ruckman. These studies established that these GPS units can be used for analysing the distance covered and time spent at the acceleration and deceleration zones used. Further, these standardized zones were proven to be capable of distinguishing between player positions, with nomadic players and ixed defenders required to complete more high acceleration and deceleration efforts during a match.	en_US
dc.relation.ispartof	Journal of Sports Medicine and Physical Fitness	en_US
dc.subject.classification	Sport Sciences	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Reproducibility of Results	en_US
dc.subject.mesh	ROC Curve	en_US
dc.subject.mesh	Movement	en_US
dc.subject.mesh	Acceleration	en_US
dc.subject.mesh	Deceleration	en_US
dc.subject.mesh	Soccer	en_US
dc.subject.mesh	Geographic Information Systems	en_US
dc.subject.mesh	Adult	en_US
dc.subject.mesh	Australia	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Athletic Performance	en_US
dc.title	Player acceleration and deceleration profiles in professional Australian football	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	55	en_US
utslib.for	110699 Human Movement and Sports Science not elsewhere classified	en_US
utslib.for	110602 Exercise Physiology	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	1106 Human Movement and Sports Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Business
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Sports and Exercise Science
pubs.organisational-group	/University of Technology Sydney/Strength - CHSP - Health Services and Practice
utslib.copyright.status	closed_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	55	en_US

Abstract:

This study aimed to determine the validity and reliability of global positioning system (GPS) units for measuring a standardized set of acceleration and deceleration zones and whether these standardized zones were capable of identifying differences between playing positions in professional Australian football. Eight well trained male participants were recruited to wear two 5 Hz or 10 Hz GPS units whilst completing a team sport simulation circuit to measure acceleration and deceleration movements. For the second part of this article 30 professional players were monitored between 1-29 times using 5 Hz and 10 Hz GPS units for the collection of acceleration and deceleration movements during the 2011 and 2012 Australian Football League seasons. Players were separated into four distinct positional groups - nomadic players, ixed defenders, ixed forwards and ruckman. The GPS units analysed had good to poor levels of error for measuring the distance covered (<19.7%), time spent (<17.2%) and number of efforts performed (<48.0%) at low, moderate and high acceleration and deceleration zones. The results demonstrated that nomadic players and ixed defenders perform more acceleration and deceleration efforts during a match than ixed forwards and ruckman. These studies established that these GPS units can be used for analysing the distance covered and time spent at the acceleration and deceleration zones used. Further, these standardized zones were proven to be capable of distinguishing between player positions, with nomadic players and ixed defenders required to complete more high acceleration and deceleration efforts during a match.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/41854