The Effect of Carbohydrate Ingestion on Performance during a Simulated Soccer Match

Nutrients

Julia H. Goedecke²  Nicholas J. White²  Waheed Chicktay²  Hafsa Mahomed³  Justin Durandt¹ 

[1] Discovery Health High Performance Centre, Sports Science Institute of South Africa, Newlands, Cape Town 7700, South Africa; E-Mail:;UCT/MRC Research Unit for Exercise Science and Sports Medicine, University of Cape Town, P.O. Box 115, Newlands, 7725, Cape Town 7700, South Africa; E-Mails:;UCT/MRC Research Unit for Nutrition and Dietetics, Department of Human Biology, University of Cape Town, Cape Town 7700, South Africa; E-Mail:

关键词: intermittent exercise;    supplementation;    sports drinks;    football;   

DOI  :  10.3390/nu5125193

来源: mdpi

【 摘 要 】

Aim: This study investigated how performance was affected after soccer players, in a postprandial state, ingested a 7% carbohydrate (CHO) solution compared to a placebo (0% CHO) during a simulated soccer match. Methods: Using a double-blind placebo-controlled design, 22 trained male league soccer players (age: 24 ± 7 years, wt: 73.4 ± 12.0 kg, VO₂max: 51.8 ± 4.3 mL O₂/kg/min) completed two trials, separated by 7 days, during which they ingested, in random order, 700 mL of either a 7% CHO or placebo drink during a simulated soccer match. Ratings of perceived exertion (RPE), agility, timed and run to fatigue were measured during the trials. Results: Change in agility times was not altered by CHO vs. placebo ingestion (0.57 ± 1.48 vs. 0.66 ± 1.00, p = 0.81). Timed runs to fatigue were 381 ± 267 s vs. 294 ± 159 s for the CHO and placebo drinks, respectively (p = 0.11). Body mass modified the relationship between time to fatigue and drink ingestion (p = 0.02 for drink × body mass), such that lower body mass was associated with increased time to fatigue when the players ingested CHO, but not placebo. RPE values for the final stage of the simulated soccer match were 8.5 ± 1.7 and 8.6 ± 1.5 for the CHO and placebo drinks respectively (p = 0.87). Conclusions: The group data showed that the 7% CHO solution (49 g CHO) did not significantly improve performance during a simulated soccer match in league soccer players who had normal pre-match nutrition. However, when adjusting for body mass, increasing CHO intake was associated with improved time to fatigue during the simulated soccer match.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.