Postactivation potentiation and change of direction speed in elite academy rugby players

Marshall, James, Turner, Anthony N. ORCID: https://orcid.org/0000-0002-5121-432X, Jarvis, Paul, Maloney, Sean, Cree, Jon ORCID: https://orcid.org/0000-0002-7738-0203 and Bishop, Chris ORCID: https://orcid.org/0000-0002-1505-1287 (2019) Postactivation potentiation and change of direction speed in elite academy rugby players. Journal of Strength and Conditioning Research, 33 (6) . pp. 1551-1556. ISSN 1064-8011 [Article] (doi:10.1519/JSC.0000000000001834)

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Abstract

This study investigated the effect of preceding pro-agility sprints with maximal isometric squats to determine if postactivation potentiation (PAP) could be harnessed in change of direction speed. Sixteen elite under-17 rugby union players (age: 16 +/- 0.41yrs; body mass: 88.7 +/- 12.1kg, height: 1.83 +/- 0.07m) from an Aviva Premiership rugby club were tested. Subjects performed a change of direction specific warm-up, followed by two baseline pro-agility tests. After 10 minutes recovery, 3 x 3-second maximal isometric squats with a 2 minute recovery between sets were completed as a conditioning activity (CA) on a force plate where peak force and mean rate of force development over 300 milliseconds were measured. The pro-agility test was repeated at set time intervals of 1, 3, 5 and 7 minutes following the CA. Overall pro-agility times were significantly slower (p < 0.05) at 1-minute post-CA compared to the baseline (3.3%), with no significant differences occurring at 3, 5 or 7 minutes post-CA. Therefore, it appears that performing multiple sets of maximal isometric squats do not enhance pro-agility performance.

Item Type: Article
Research Areas: A. > School of Science and Technology > London Sport Institute
Item ID: 21825
Notes on copyright: This is a non-final version of an article published in final form in Marshall, J., Turner, A. N., Jarvis, P. T., Maloney, S. J., Cree, J. A., & Bishop, C. J. (2019). Postactivation Potentiation and Change of Direction Speed in Elite Academy Rugby Players. Journal of Strength and Conditioning Research, 33(6), 1551–1556. doi:10.1519/jsc.0000000000001834
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Depositing User: Jennifer Basford
Date Deposited: 12 May 2017 13:24
Last Modified: 09 Jun 2021 20:10
URI: https://eprints.mdx.ac.uk/id/eprint/21825

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