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A novel method to categorise stretch-shortening cycle performance across maturity in youth soccer players

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Author
Pedley, Jason
Lloyd, Rhodri S.
Read, Paul
Moore, Isabel
Myer, Greg
Oliver, Jon
Date
2020-12-03
Acceptance date
2020-10-06
Type
Article
Publisher
Lippincott, Williams and Wilkins
ISSN
1064-8011
1533-4287
Metadata
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Abstract
This study utilised a novel method to categorise stretch-shortening cycle (SSC) function during a drop jump (DJ) using the force-time curve. This method was then used to determine the effect of maturity status upon SSC function and effect of SSC function on drop jump performance. Pre-, circa- and post-peak height velocity male youth soccer players completed a pre-season 30 cm DJ onto a force plate. SSC function was categorised as poor (impact peak and not spring like), moderate (impact peak and spring like) or good (no impact peak and spring-like). Interactions between SSC function and maturity status, and SSC function and kinetic variables were explored. Youth soccer players displaying good SSC function were older and more mature than those with poor SSC function, however, 9.9% of post-PHV still displayed poor SSC function. Players with good SSC function recorded significantly shorter ground contact times, reduced time between peak landing and takeoff force, reduced centre of mass displacement and significantly greater takeoff forces than players with moderate and poor SSC function (all p < 0.05). SSC function during a standardized DJ improves with maturation, but a portion of mature players still demonstrate poor SSC function. Good SSC function was associated with improved DJ outcome measures except jump height. Tailored training interventions based upon SSC competency may be required to optimally enhance SSC function.
Journal/conference proceeding
Journal of Strength and Conditioning Research;
Citation
Pedley, J.S., Lloyd, R.S., Read, P.J., Moore, I.S., Myer, G.D. and Oliver, J.L., (2020) 'A Novel Method to Categorize Stretch-Shortening Cycle Performance Across Maturity in Youth Soccer Players', The Journal of Strength & Conditioning Research. doi: 10.1519/JSC.0000000000003900
URI
http://hdl.handle.net/10369/11163
DOI
https://doi.org/10.1519/JSC.0000000000003900
Description
Article published in Journal of Strength and Conditioning Research
Rights
http://www.rioxx.net/licenses/under-embargo-all-rights-reserved
Sponsorship
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
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