Influence of carbohydrate supplementation on skill performance during a soccer match simulation

Russell, Mark, Benton, David and Kingsley, Michael (2012) Influence of carbohydrate supplementation on skill performance during a soccer match simulation. Journal of Science and Medicine in Sport, 15 (4). pp. 348-354. ISSN 1440-2440

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Official URL: http://dx.doi.org/10.1016/j.jsams.2011.12.006

Abstract

Objectives
This study investigated the influence of carbohydrate supplementation on skill performance throughout exercise that replicates soccer match-play.

Design
Experimentation was conducted in a randomised, double-blind and cross-over study design.

Methods
After familiarization, 15 professional academy soccer players completed a soccer match simulation incorporating passing, dribbling and shooting on two separate occasions. Participants received a 6% carbohydrate–electrolyte solution (CHO) or electrolyte solution (PL). Precision, success rate, ball speed and an overall index (speed-precision-success; SPS) were determined for all skills. Blood samples were taken at rest, immediately before exercise, every 15min during exercise (first half: 15, 30 and 45min; second half: 60, 75 and 90min), and 10min into the half time (half-time).

Results
Carbohydrate supplementation influenced shooting (time×treatment interaction: p<0.05), where CHO attenuated the decline in shot speed and SPS index. Supplementation did not affect passing or dribbling. Blood glucose responses to exercise were influenced by supplementation (time×treatment interaction: p<0.05), where concentrations were higher at 45min and during half-time in CHO compared with PL. Blood glucose concentrations reduced by 30±1% between half-time and 60min in CHO.

Conclusions
Carbohydrate supplementation attenuated decrements in shooting performance during simulated soccer match-play; however, further research is warranted to optimise carbohydrate supplementation regimes for high-intensity intermittent sports.

Item Type: Article
Uncontrolled Keywords: supplementation, football, shooting, rebound hypoglycaemia
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Linda Barlow
Date Deposited: 14 May 2012 14:26
Last Modified: 10 Aug 2015 11:35
URI: http://nrl.northumbria.ac.uk/id/eprint/7038

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