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Updated: Jun 21, 2026

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Analysis of a reactive agility field test.

Warren B Young1, Ben Willey

  • 1School of Human Movement and Sport Sciences, University of Ballarat, Australia. w.young@ballarat.edu.au

Journal of Science and Medicine in Sport
|July 7, 2009
PubMed
Summary

Decision time, a measure of perceptual skill, significantly impacts reactive agility test performance in Australian Rules football players. Controlling tester time with high-speed video analysis is crucial for accurate assessment.

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Area of Science:

  • Sports Science
  • Biomechanics
  • Human Movement

Background:

  • Reactive agility is critical for sports performance, involving rapid changes in direction.
  • Accurate measurement of reactive agility tests is essential for athlete assessment and training.
  • Understanding the components of reactive agility can optimize training protocols.

Purpose of the Study:

  • To evaluate a reactive agility test by analyzing the relationship between total test time and its components.
  • To identify the key factors influencing performance in a reactive agility test.
  • To provide recommendations for improving the accuracy and reliability of reactive agility testing.

Main Methods:

  • Thirty-one semi-professional Australian Rules football players participated.

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A Training Program Using an Agility Ladder for Community-Dwelling Older Adults
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  • A reactive agility test involving side-step movements was administered.
  • Electronic timing and high-speed video analysis were used to record tester time, decision time, and response movement time over eight trials.

    • Main Results:

    • Decision time showed the highest correlation with total test time (r=0.77, p=0.00).
    • Response movement time (r=0.59, p=0.00) and tester time (r=0.37, p=0.04) also correlated significantly with total time.
    • The coefficient of variation for tester time was 5.1%, indicating variability.

    Conclusions:

    • Perceptual skill, specifically decision time, is a vital component of reactive agility.
    • Tester time should be standardized using high-speed video analysis to isolate its influence and improve test validity.
    • This research provides insights into optimizing reactive agility assessment for athletes.