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|Title: ||Ecologically valid carbohydrate intake during soccer-specific exercise does not affect running performance in a fed state|
|Authors: ||Funnell, Mark P.|
Dykes, Nick R.
Owen, Elliot J.
Mears, Stephen A.
James, Lewis J.
|Issue Date: ||2017|
|Publisher: ||© The Authors. Published by MDPI AG|
|Citation: ||FUNNELL, M.P. ...et al., 2017. Ecologically valid carbohydrate intake during soccer-specific exercise does not affect running performance in a fed state. Nutrients, 9(1): 39.|
|Abstract: ||© 2017 by the authors; licensee MDPI, Basel, Switzerland.This study assessed the effect of carbohydrate intake on self-selected soccer-specific running performance. Sixteen male soccer players (age 23 ± 4 years; body mass 76.9 ± 7.2 kg; predicted VO2max = 54.2 ± 2.9 mL·kg−1·min−1; soccer experience 13 ± 4 years) completed a progressive multistage fitness test, familiarisation trial and two experimental trials, involving a modified version of the Loughborough Intermittent Shuttle Test (LIST) to simulate a soccer match in a fed state. Subjects completed six 15 min blocks (two halves of 45 min) of intermittent shuttle running, with a 15-min half-time. Blocks 3 and 6, allowed self-selection of running speeds and sprint times, were assessed throughout. Subjects consumed 250 mL of either a 12% carbohydrate solution (CHO) or a non-caloric taste matched placebo (PLA) before and at half-time of the LIST. Sprint times were not different between trials (CHO 2.71 ± 0.15 s, PLA 2.70 ± 0.14 s; p = 0.202). Total distance covered in self-selected blocks (block 3: CHO 2.07 ± 0.06 km; PLA 2.09 ± 0.08 km; block 6: CHO 2.04 ± 0.09 km; PLA 2.06 ± 0.08 km; p = 0.122) was not different between trials. There was no difference between trials for distance covered (p ≥ 0.297) or mean speed (p ≥ 0.172) for jogging or cruising. Blood glucose concentration was greater (p < 0.001) at the end of half-time during the CHO trial. In conclusion, consumption of 250 mL of 12% CHO solution before and at half-time of a simulated soccer match does not affect self-selected running or sprint performance in a fed state.|
|Description: ||This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/|
|Sponsor: ||This study was externally funded by PepsiCo Inc.|
|Publisher Link: ||http://dx.doi.org/10.3390/nu9010039|
|Appears in Collections:||Published Articles (Sport, Exercise and Health Sciences)|
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