Neuromuscular, biochemical, endocrine, and mood responses to small-sided games' training in professional soccer

Sparkes, William, Turner, Anthony N., Weston, Matthew, Russell, Mark, Johnston, Michael and Kilduff, Liam P. (2018) Neuromuscular, biochemical, endocrine, and mood responses to small-sided games' training in professional soccer. Journal of Strength and Conditioning Research, 32 (9). pp. 2569-2576. ISSN 1064-8011

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Abstract

The 24h responses to small-sided games (SSG) soccer training were characterized. Professional soccer players (n=16) performed SSG’s (4vs4 + goalkeepers; 6x7-min, 2-min inter-set recovery) with performance (peak-power output, PPO; jump height, JH), physiological (blood creatine kinase: CK, lactate; salivary testosterone, cortisol), and mood measures collected before (baseline), and after (immediately; 0h, +2h, +24h). For PPO and JH, possibly small-moderate reductions occurred at 0h (-1.1W·kg-1; ±0.9W·kg-1, -3.2cm; ±1.9cm, respectively), before returning to baseline at +2h (trivial) and declining thereafter (small-moderate effect) at +24h (-0.9W·kg-1; ±0.8W·kg-1, -2.5cm; ±1.2cm, respectively). Lactate increased at 0h (likely-large; +1.3mmol·L-1; ±0.5mmol·L-1), reduced at +2h (likely-small; -0.5mmol·L-1; ±0.2mmol·L-1), and returned to baseline at 24h (trivial). A very-likely small increase in CK occurred at 0h (+97u·L-1; ±28u·L-1), persisting for +24h (very-likely small; +94u·L-1; ±49u·L-1). Possibly-small increases in testosterone (+20pg·ml-1; ±29pg·ml-1) occurred at 0h, before likely-moderate declines at +2h (-61pg·ml-1; ±21pg·ml-1) returning to baseline at +24h (trivial). For cortisol, possibly-small decreases occurred at 0h (-0.09ug·dl-1; -±0.16ug·dl-1), before likely-large decreases at +2h (-0.39ug·dl-1; ±0.12ug·dl-1), which persisted for 24h (likely-small; -0.12ug·dl-1; ±0.11ug·dl-1). Mood was disturbed by SSG’s at 0h (likely-moderate; +13.6AU, ±5.6AU) and +2h (likely-small; +7.9AU; ±5.0AU), before returning to baseline at +24h (trivial). The movement demands of SSG’s result in a bimodal recovery pattern of neuromuscular function and perturbations in physiological responses and mood for up to 24h. Accordingly, when programming soccer training, SSG’s should be periodized throughout the competitive week with submaximal technical/tactical activities.

Item Type: Article
Research Areas: A. > School of Science and Technology > London Sport Institute > Strength and Conditioning at the London Sport Institute
Item ID: 23279
Notes on copyright: This is a non-final version of an article published in final form in: Sparkes, W. et al., 2018. Neuromuscular, Biochemical, Endocrine, and Mood Responses to Small-Sided Gamesʼ Training in Professional Soccer. Journal of Strength and Conditioning Research, 32(9), pp.2569–2576. Available at: http://dx.doi.org/10.1519/jsc.0000000000002424.
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Depositing User: Anthony Turner
Date Deposited: 09 Jan 2018 12:51
Last Modified: 05 Apr 2019 07:33
URI: https://eprints.mdx.ac.uk/id/eprint/23279

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