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

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    Authors
    Marshall, James
    Turner, Anthony
    Jarvis, Paul
    Maloney, Sean J.
    Cree, Jon
    Bishop, Chris
    Affiliation
    Middlesex University
    University of Bedfordshire
    Issue Date
    2019-06-01
    Subjects
    isometric squats
    preconditioning
    agility
    individual response
    C600 Sports Science
    
    Metadata
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    Abstract
    This study investigated the effect of preceding proagility 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 6 0.41 years; body mass: 88.7 6 12.1 kg; height: 1.83 6 0.07 m) from an Aviva Premiership rugby club were tested. Subjects performed a change of direction specific warm-up, followed by 2 baseline proagility tests. After 10-minute recovery, 3 3 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 proagility test was repeated at set time intervals of 1, 3, 5, and 7 minutes after the CA. Overall proagility times were significantly slower (p, 0.05) at 1 minute post-CA compared with 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 proagility performance.
    Citation
    Marshall J, Turner A, Jarvis P, Maloney S, Cree J, Bishop C (2019) 'Postactivation potentiation and change of direction speed in elite academy rugby players', Journal of Strength and Conditioning Research, 33 (6), pp.1551-1556.
    Publisher
    NSCA National Strength and Conditioning Association
    Journal
    Journal of Strength and Conditioning Research
    URI
    http://hdl.handle.net/10547/623762
    DOI
    10.1519/JSC.0000000000001834
    PubMed ID
    28166184
    Additional Links
    https://insights.ovid.com/crossref?an=00124278-201906000-00012
    Type
    Article
    Language
    en
    ISSN
    1064-8011
    ae974a485f413a2113503eed53cd6c53
    10.1519/JSC.0000000000001834
    Scopus Count
    Collections
    Sport and physical activity

    entitlement

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