Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance.

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Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance. / Moseley, L; Lancaster, GI; Jeukendrup, Asker.

In: European Journal of Applied Physiology, Vol. 88, No. 4-5, 01.01.2003, p. 453-8.

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@article{49eb14ab909d4de687b10f453f456c0f,
title = "Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance.",
abstract = "The occurrence of rebound hypoglycaemia may depend on the timing of carbohydrate intake. The aim of the present study was to investigate the metabolic and performance responses to the ingestion of carbohydrate at differing times before exercise. Eight subjects [mean (SEM)] [28 (3) years, 74.5 (2.6) kg, maximal oxygen uptake 63.1 (3.1) ml.kg(-1).min(-1)] performed three experiments. They ingested 75 g glucose dissolved in 500 ml water, thereafter resting for either 15, 45 or 75 min (15-Pre, 45-Pre and 75-Pre) before exercising for 20 min at 65% maximal power output followed by a time trial [total work 685 (18) kJ]. There were no differences in performance between conditions [mean powers 268 (10), 269 (7) and 276 (12) W for 15-Pre, 45-Pre and 75-Pre, respectively]. There were significant differences in plasma glucose concentration between 15-Pre [6.6 (0.6) mmol.l(-1); P",
keywords = "hypoglycaemia, carbohydrate, performance, insulin, glucose",
author = "L Moseley and GI Lancaster and Asker Jeukendrup",
year = "2003",
month = jan,
day = "1",
doi = "10.1007/s00421-002-0728-8",
language = "English",
volume = "88",
pages = "453--8",
journal = "European Journal of Applied Physiology",
issn = "1439-6319",
publisher = "Springer Verlag",
number = "4-5",

}

RIS

TY - JOUR

T1 - Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance.

AU - Moseley, L

AU - Lancaster, GI

AU - Jeukendrup, Asker

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The occurrence of rebound hypoglycaemia may depend on the timing of carbohydrate intake. The aim of the present study was to investigate the metabolic and performance responses to the ingestion of carbohydrate at differing times before exercise. Eight subjects [mean (SEM)] [28 (3) years, 74.5 (2.6) kg, maximal oxygen uptake 63.1 (3.1) ml.kg(-1).min(-1)] performed three experiments. They ingested 75 g glucose dissolved in 500 ml water, thereafter resting for either 15, 45 or 75 min (15-Pre, 45-Pre and 75-Pre) before exercising for 20 min at 65% maximal power output followed by a time trial [total work 685 (18) kJ]. There were no differences in performance between conditions [mean powers 268 (10), 269 (7) and 276 (12) W for 15-Pre, 45-Pre and 75-Pre, respectively]. There were significant differences in plasma glucose concentration between 15-Pre [6.6 (0.6) mmol.l(-1); P

AB - The occurrence of rebound hypoglycaemia may depend on the timing of carbohydrate intake. The aim of the present study was to investigate the metabolic and performance responses to the ingestion of carbohydrate at differing times before exercise. Eight subjects [mean (SEM)] [28 (3) years, 74.5 (2.6) kg, maximal oxygen uptake 63.1 (3.1) ml.kg(-1).min(-1)] performed three experiments. They ingested 75 g glucose dissolved in 500 ml water, thereafter resting for either 15, 45 or 75 min (15-Pre, 45-Pre and 75-Pre) before exercising for 20 min at 65% maximal power output followed by a time trial [total work 685 (18) kJ]. There were no differences in performance between conditions [mean powers 268 (10), 269 (7) and 276 (12) W for 15-Pre, 45-Pre and 75-Pre, respectively]. There were significant differences in plasma glucose concentration between 15-Pre [6.6 (0.6) mmol.l(-1); P

KW - hypoglycaemia

KW - carbohydrate

KW - performance

KW - insulin

KW - glucose

U2 - 10.1007/s00421-002-0728-8

DO - 10.1007/s00421-002-0728-8

M3 - Article

C2 - 12527977

VL - 88

SP - 453

EP - 458

JO - European Journal of Applied Physiology

JF - European Journal of Applied Physiology

SN - 1439-6319

IS - 4-5

ER -