PMID: 8941515Nov 1, 1996Paper

Reduced oxidation rates of ingested glucose during prolonged exercise with low endogenous CHO availability

Journal of Applied Physiology
Asker E JeukendrupA J Wagenmakers

Abstract

This study investigated the effect of endogenous carbohydrate (CHO) availability on oxidation rates of ingested glucose during moderate-intensity exercise. Seven well-trained cyclists performed two trials of 120 min of cycling exercise in random order at 57% maximal O2 consumption. Preexercise glycogen concentrations were manipulated by glycogen-lowering exercise in combination with CHO restriction [low-glycogen (LG) trial] or CHO loading [moderate-to-high-glycogen (HG) trial]. In the LG and HG trials, subjects ingested 4 ml/kg body wt of an 8% corn-derived glucose solution of high natural 13C abundance at the start, followed by boluses of 2 ml/kg every 15 min. The third trial, in which potato-derived glucose was ingested, served as a control test for background correction. Exogenous glucose oxidation rates were calculated from the 13C enrichment of the ingested glucose and of the breath CO2. Total CHO oxidation was lower in the LG trial than in the HG trial during 60-120 min of exercise [84 +/- 7 (SE) vs. 116 +/- 8 g; P < 0.05]. Exogenous CHO oxidation in this period was 28% lower in the LG trial compared with the HG trial. Maximal exogenous oxidation rates were also lower (P < 0.05) in the LG trial (0.64 +/- 0.05 g/min) than ...Continue Reading

References

Nov 1, 1979·Pflügers Archiv : European journal of physiology·E RavussinE Jéquier
Oct 1, 1977·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·D L CostillD Hoopes
Feb 1, 1992·Journal of Applied Physiology·N J RehrerW H Saris
Jan 1, 1991·Journal of Applied Physiology·M HargreavesE A Richter
Aug 1, 1990·International Journal of Sports Medicine·D MassicotteC Hillaire-Marcel
Jan 1, 1989·Journal of Applied Physiology·D MassicotteC Hillaire-Marcel
Dec 1, 1987·Journal of Applied Physiology·A R Coggan, E F Coyle
Dec 1, 1987·Pflügers Archiv : European journal of physiology·H KuipersW H Saris
Jul 1, 1986·Journal of Applied Physiology·E F CoyleJ L Ivy
Aug 1, 1987·The American Journal of Physiology·S H ConstableJ O Holloszy
Sep 1, 1986·Journal of Applied Physiology·E A Richter, H Galbo
Aug 1, 1985·International Journal of Sports Medicine·H KuipersG van Kranenburg
Jan 1, 1995·Journal of Applied Physiology·M HargreavesJ Proietto
Sep 1, 1994·Journal of Applied Physiology·G McConellM Hargreaves
May 1, 1994·International Journal of Sports Medicine·D MassicotteC Hillaire-Marcel
Dec 1, 1993·Journal of Applied Physiology·A J WagenmakersD Halliday
Oct 1, 1993·Journal of Applied Physiology·B B YaspelkisJ L Ivy
May 1, 1993·Journal of Applied Physiology·A J WagenmakersD Halliday
Oct 1, 1995·International Journal of Sports Medicine·F PirnayP J Lefèbvre

❮ Previous
Next ❯

Citations

Aug 4, 1998·Journal of Applied Physiology·F PéronnetD Massicotte
Apr 13, 1999·The American Journal of Physiology·A E JeukendrupW H Saris
Mar 16, 2002·Journal of Applied Physiology·Roy L P G JentjensAsker E Jeukendrup
Dec 6, 2003·Journal of Applied Physiology·Roy L P G JentjensAsker E Jeukendrup
Oct 20, 2001·Journal of Applied Physiology·M J ArkinstallJ A Hawley
Dec 3, 2005·Journal of Applied Physiology·Asker E JeukendrupChristopher H Mann
Mar 21, 2017·Journal of the American College of Nutrition·Flor E MoralesDarryn S Willoughby
Feb 19, 2020·American Journal of Physiology. Endocrinology and Metabolism·Jamie N PughGraeme L Close
Feb 25, 2005·American Journal of Physiology. Endocrinology and Metabolism·L MoseleyA E Jeukendrup
Feb 19, 2008·Sports Medicine·Julien AucouturierPascale Duché
Mar 1, 1997·Journal of Applied Physiology·A E JeukendrupA J Wagenmakers
Apr 21, 2009·Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas·A E Lima-SilvaM S Gevaerd

❮ 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.