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Acceleration and fatigue in soccer

Varley, Matthew C (2013) Acceleration and fatigue in soccer. PhD thesis, Victoria University.

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Abstract

This thesis investigated acceleration in soccer and the ability to improve acceleration capacity using supplementation and a training intervention both separately and in combination. Study one determined the validity and reliability of 5 and 10 Hz global positioning systems (GPS) for measuring instantaneous speed during the acceleration, deceleration and constant speed phase of straight-line running. The criterion measure used to assess GPS validity was instantaneous speed recorded using a tripod-mounted laser. Ten Hz GPS devices were 2-3 times more accurate than 5 Hz when compared to a criterion value for instantaneous speed during tasks completed at a range of speeds (coefficient of variation; 3.1 - 11.3%). Similarly, 10 Hz GPS were up to 6-fold more reliable for measuring instantaneous speed than 5 Hz units (coefficient of variation; 1.9 - 6%). Newer GPS may provide an acceptable tool for the measurement of constant speed, acceleration and deceleration during straight-line running and have sufficient sensitivity for detecting changes in performance in team sport. However, researchers must account for the inherent match-to-match variation reported using these devices.

Item Type: Thesis (PhD thesis)
Uncontrolled Keywords: football, GPS, movement, running, sprinting, physical performance, team sports, athletes, sprints, exercises, repeat sprint, Australia
Subjects: FOR Classification > 1106 Human Movement and Sports Science
Faculty/School/Research Centre/Department > Institute of Sport, Exercise and Active Living (ISEAL)
Depositing User: VU Library
Date Deposited: 13 May 2013 05:21
Last Modified: 28 May 2013 04:47
URI: http://vuir.vu.edu.au/id/eprint/21719
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