Power training in elite young soccer players: effects of using loads above or below the optimum power zone

Loturco, Irineu ORCID: https://orcid.org/0000-0003-1309-2568, Pereira, Lucas A., Reis, Valter P., Bishop, Chris, Zanetti, Vinicius, Alcaraz, Pedro E. ORCID: https://orcid.org/0000-0002-9792-6656, Freitas, Tomás T. ORCID: https://orcid.org/0000-0001-8571-3189 and McGuigan, Michael R. (2019) Power training in elite young soccer players: effects of using loads above or below the optimum power zone. Journal of Sports Sciences . ISSN 0264-0414 (Published online first)

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This study aimed to examine the effects of two jump squat (JS) training programs involving different loading ranges in under-20 soccer players during a preseason period. Twenty-three elite young soccer players performed sprint speed (at 5-, 10-, and 20-m), change-of-direction (COD) speed, JS peak-power (PP), and countermovement jump (CMJ) tests pre and post four weeks of training. Athletes were pair-matched in two groups according to their optimum power loads (OPL) as follows: lower than OPL (LOPL; athletes who trained at a load 20% lower than the OPL) and higher than OPL (HOPL; athletes who trained at a load 20% higher than the OPL). Magnitude-based inferences were used to compare pre- and post-training measures. Meaningful increases in the PP JS were observed for both groups. Likely and possible improvements were observed in the 5- and 10-m sprint velocity in the LOPL group. Meanwhile, possible and likely improvements were observed in the CMJ, 5- and 10-m sprint velocity, and COD speed in the HOPL group. Overall, both training schemes induced positive changes in athletic performance. Soccer coaches and sport scientists can implement the JS OPL-based training schemes presented here, either separately or combined, to improve the physical performance of youth soccer players.

Item Type: Article
Keywords (uncontrolled): Team-sports, football, optimal loads, speed ability, vertical jump
Research Areas: A. > School of Science and Technology > London Sport Institute > Strength and Conditioning at the London Sport Institute
Item ID: 27395
Notes on copyright: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 07/08/2019, available online: http://www.tandfonline.com/10.1080/02640414.2019.1651614
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SWORD Depositor: Jisc Publications Router
Depositing User: Jisc Publications Router
Date Deposited: 21 Aug 2019 08:18
Last Modified: 28 Aug 2019 10:33
URI: https://eprints.mdx.ac.uk/id/eprint/27395

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