Importance, reliability and usefulness of acceleration measures in team sports
Journal article
Delaney, Jace A., Cummins, Cloe J., Thornton, Heidi R. and Duthie, Grant M.. (2018) Importance, reliability and usefulness of acceleration measures in team sports. Journal of Strength and Conditioning Research. 32(12), pp. 3485 - 3493. https://doi.org/10.1519/JSC.0000000000001849
Authors | Delaney, Jace A., Cummins, Cloe J., Thornton, Heidi R. and Duthie, Grant M. |
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Abstract | Abstract: Delaney, JA, Cummins, CJ, Thornton, HR, and Duthie, GM. Importance, reliability and usefulness of acceleration measures in team sports. J Strength Cond Res 32(12): 3494-3502, 2018-The ability to accelerate, decelerate, and change direction efficiently is imperative to successful team sports performance. Traditional intensity-based thresholds for acceleration and deceleration may be inappropriate for time-series data and have been shown to exhibit poor reliability, suggesting other techniques may be preferable. This study assessed movement data from one professional rugby league team throughout 2 full seasons and 1 preseason period. Using both 5 and 10 Hz global positioning systems (GPS) units, a range of acceleration-based variables were evaluated for their interunit reliability, ability to discriminate between positions, and associations with perceived muscle soreness. The reliability of 5 Hz global positioning systems for measuring acceleration and deceleration ranged from good to poor (CV = 3.7-27.1%), with the exception of high-intensity deceleration efforts (CV = 11.1-11.8%), the 10 Hz units exhibited moderate-to-good interunit reliability (CV = 1.2-6.9%). Reliability of average metrics (average acceleration/deceleration, average acceleration, and average deceleration) ranged from good to moderate (CV = 1.2-6.5%). Substantial differences were detected between positions using time spent accelerating and decelerating for all magnitudes, but these differences were less clear when considering the count or distance above acceleration/deceleration thresholds. All average metrics detected substantial differences between positions. All measures were similarly related to perceived muscle soreness, with the exception of high-intensity acceleration and deceleration counts. This study has proposed that averaging the acceleration/deceleration demands over an activity may be a more appropriate method compared with threshold-based methods, because a greater reliability between units, while not sacrificing sensitivity to within-subject and between-subject changes. |
Keywords | soreness; deceleration; athlete monitoring; football |
Year | 2018 |
Journal | Journal of Strength and Conditioning Research |
Journal citation | 32 (12), pp. 3485 - 3493 |
Publisher | Lippincott Williams and Wilkins |
ISSN | 1533-4287 |
Digital Object Identifier (DOI) | https://doi.org/10.1519/JSC.0000000000001849 |
Scopus EID | 2-s2.0-85048813640 |
Page range | 3485 - 3493 |
Research Group | Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre |
Publisher's version | File Access Level Controlled |
Place of publication | United States of America |
https://acuresearchbank.acu.edu.au/item/89wqy/importance-reliability-and-usefulness-of-acceleration-measures-in-team-sports
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