PMID: 16521844Mar 9, 2006Paper

Effect of carbohydrate intake on half-marathon performance of well-trained runners

International Journal of Sport Nutrition and Exercise Metabolism
Louise M BurkePhilo U Saunders

Abstract

Eighteen highly-trained runners ran two half marathons in mild environmental conditions, 3 wk apart, consuming either 426 +/- 227 mL of a flavored placebo drink (PLACEBO) or an equivalent volume of water (386 +/- 185 mL) and a commercial gel (GEL) supplying 1.1 +/- 0.2 g/kg body mass (BM) carbohydrate (CHO). Voluntary consumption of this fluid was associated with a mean BM change of approximately 2.4%. Runners performed better in their second race by 0.9% or 40 s (P = 0.03). Three runners complained of gastrointestinal discomfort in GEL trial, which produced a clear impairment of half-marathon performance by 2.4% or 105 s (P=0.03). The effect of GEL on performance was trivial: time was improvedby 0.3% or 14 s compared with PLACEBO (P = 0.52). Consuming the gel was associated with a 2.4% slower time through the 2 x 200 m feed zone; adding a trivial approximately 2 s to race time. Although benefits to half marathon performance were not detected, the theoretical improvement during 1-h exercise with CHO intake merits further investigation.

Citations

Dec 6, 2007·Journal of Sports Sciences·Louise M BurkeUNKNOWN International Association of Athletics Federations
Feb 25, 2009·The Journal of Physiology·E S ChambersD A Jones
Apr 21, 2010·Medicine and Science in Sports and Exercise·Beate PfeifferAsker E Jeukendrup
Aug 19, 2011·Sports Medicine·Tom J Vandenbogaerde, Will G Hopkins
Aug 15, 2012·Journal of Strength and Conditioning Research·Matthew M Schubert, Todd A Astorino
Mar 16, 2018·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Débora FingerRonei Silveira Pinto
Jun 23, 2015·Journal of the American College of Nutrition·William P McCormackDavid H Fukuda
Oct 28, 2014·European Journal of Sport Science·Louise M Burke, Ronald J Maughan
Jun 11, 2011·Journal of Sports Sciences·Louise M BurkeAsker E Jeukendrup
May 28, 2011·Sports Medicine·Ian Rollo, Clyde Williams
Mar 20, 2010·European Journal of Applied Physiology·Jason K W LeeChristopher Byrne
Dec 9, 2014·Journal of Sports Sciences·Brian Hanley
Jan 25, 2019·International Journal of Sport Nutrition and Exercise Metabolism·Philo U SaundersJulien D Périard
Feb 6, 2007·Medicine and Science in Sports and Exercise·Michael N SawkaNina S Stachenfeld
Jun 5, 2013·Journal of the International Society of Sports Nutrition·Samuel David Cosgrove, Katherine Elizabeth Black
Sep 17, 2019·Journal of Human Kinetics·Patrick M TomkoCarmen A Young
Apr 6, 2016·Journal of Strength and Conditioning Research·Patrick B Wilson
Sep 26, 2012·Sports Medicine·Mayur K Ranchordas
Jun 19, 2012·Journal of the International Society of Sports Nutrition·Brandon W TooGretchen A Casazza

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Medicine and Science in Sports and Exercise
M Millard-StaffordL J DiCarlo
Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine
Lukas Y BeisYannis P Pitsiladis
European Journal of Applied Physiology and Occupational Physiology
O K TsintzasJ Burrin
© 2021 Meta ULC. All rights reserved