Validity and Reliability of Agility Tests in Junior Australian Football Players

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Young, Warren, Farrow, Damian, Pyne, David, McGregor, William and Handke, Tara (2011) Validity and Reliability of Agility Tests in Junior Australian Football Players. Journal of Strength and Conditioning Research, 25 (12). pp. 3399-3403. ISSN 1064-8011 (print) 1533-4287 (online)

Abstract

Young, W, Farrow, D, Pyne, D, McGregor, W, and Handke, T. Validity and reliability of agility tests in junior Australian football players. J Strength Cond Res 25(12): 3399–3403, 2011—The importance of sport-specific stimuli in reactive agility tests (RATs) compared to other agility tests is not known. The purpose of this research was to determine the validity and reliability of agility tests. Fifty junior Australian football players aged 15–17 years, members of either an elite junior squad (n = 35) or a secondary school team (n = 15), were assessed on a new RAT that involved a change of direction sprint in response to the movements of an attacking player projected in life size on a screen. These players also underwent the planned Australian Football League agility test, and a subgroup (n = 13) underwent a test requiring a change of direction in response to a left or right arrow stimulus. The elite players were significantly better than the school group players on the RAT (2.81 ± 0.08 seconds, 3.07 ± 0.12 seconds; difference 8.5%) but not in the arrow stimulus test or planned agility test. The data were log transformed and the reliability of the new RAT estimated using typical error (TE) expressed as a coefficient of variation. The TE for the RAT was 2.7% (2.0–4.3, 90% confidence interval) or 0.07 seconds (0.5–1.0), with an intraclass correlation coefficient (ICC) of 0.33. For the test using the arrow stimulus, the TE was 3.4% (2.4–6.2), 0.09 (0.06–0.15) seconds, and ICC was 0.10. The sport-specific stimulus provided by the new RAT is a crucial component of an agility test; however, adoption of the new RAT for routine testing is likely to require more accessible equipment and several familiarization trials to improve its reliability.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/9170
DOI https://doi.org/10.1519/JSC.0b013e318215fa1c
Subjects Historical > FOR Classification > 1106 Human Movement and Sports Science
Historical > FOR Classification > 1702 Cognitive Science
Historical > SEO Classification > 9301 Learner and Learning
Historical > Faculty/School/Research Centre/Department > Institute of Sport, Exercise and Active Living (ISEAL)
Keywords ResPubID23695, reactive agility, change of direction, perception, decision making
Citations in Scopus 24 - View on Scopus
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