Omission of a carbohydrate-rich breakfast impairs evening endurance exercise performance despite complete dietary compensation at lunch.

European Journal of Sport Science
Richard S MetcalfeEnhad A Chowdhury

Abstract

Omission of a carbohydrate-rich breakfast followed by consuming an ad libitum lunch impairs evening exercise performance. However, it is unclear if this is due to breakfast omission per se, or secondary to lower carbohydrate intake over the day. To test whether impaired evening performance following breakfast omission persists when complete dietary compensation occurs at lunch, in a randomised cross-over design, eleven highly trained cyclists (age: 25 ± 7 y, VO2max: 61 ± 5 ml·kg-1·min-1) completed two trials: breakfast (B) and no breakfast (NB). During B, participants consumed an individualised breakfast (583 ± 54 kcal; 8-9am) and lunch (874 ± 80 kcal; 12-2pm), whilst during NB participants fasted until 12pm and then consumed a standardised lunch (1457 ± 134 kcal: 12-2pm). The overall energy (1457 ± 134 kcal) and macronutrient profile (carbohydrate: 81.5 ± 0.4%, fat: 5.8 ± 0.1%, protein: 12.7 ± 0.3%) was identical in both trials, with timing the only difference. Mean power output during a 20 km time trial performed in the evening was ~3% lower in NB compared to B (mean difference [95% CI]: -9.1 [-15.3, -2.9] watts, p < 0.01 for condition main effect). No differences in heart rate, blood glucose or blood lactate concentrations w...Continue Reading

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References

Sep 1, 1991·Journal of Applied Physiology·D A WrightA R Dernbach
Sep 1, 1990·The American Journal of Physiology·G I ShulmanB R Landau
Feb 1, 1990·The American Journal of Clinical Nutrition·M D MifflinY O Koh
Mar 1, 1987·Journal of Applied Physiology·P D NeuferJ Houmard
Aug 1, 1985·Journal of Applied Physiology·E F CoyleT J Walters
Aug 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·K N Frayn
Apr 3, 1999·Medicine and Science in Sports and Exercise·E J SchabortT D Noakes
Mar 7, 2000·International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity·A FlintA Astrup
Aug 22, 2002·International Journal of Sport Nutrition and Exercise Metabolism·Costas ChryssanthopoulosVeronica Vleck
Oct 26, 2002·The American Journal of Clinical Nutrition·G Harvey AndersonThomas M S Wolever
Dec 25, 2004·British Journal of Sports Medicine·H G L RauchT D Noakes
Feb 11, 2005·International Journal of Sports Medicine·A E Jeukendrup, G A Wallis
Apr 2, 2005·Journal of Sports Sciences·Costas ChryssanthopoulosGregory Bogdanis
Oct 1, 2005·Journal of Sports Sciences·Magni MohrJens Bangsbo
Jun 16, 2006·Medicine and Science in Sports and Exercise·Peter KrustrupJens Bangsbo
May 3, 2011·European Journal of Applied Physiology·Kevin ThomasLes Ansley
Jun 11, 2011·Journal of Sports Sciences·Louise M BurkeAsker E Jeukendrup
Nov 28, 2013·International Journal of Sport Nutrition and Exercise Metabolism·Stuart D R GallowayLindsay C Toulouse
Jun 6, 2014·The American Journal of Clinical Nutrition·James A BettsDylan Thompson
May 15, 2015·Medicine and Science in Sports and Exercise·David J ClaytonLewis J James
Dec 15, 2015·The Proceedings of the Nutrition Society·David J Clayton, Lewis J James
Sep 19, 2017·Journal of the International Society of Sports Nutrition·Chad M KerksickJose Antonio
Sep 28, 2017·International Journal of Sports Physiology and Performance·Stephen A MearsLewis J James
Oct 11, 2017·Journal of Sports Sciences·Dajo SandersIbrahim Akubat
Nov 16, 2018·European Journal of Sport Science·Elizabeth Cornford, Richard Metcalfe
Nov 18, 2018·Science·Louise M Burke, John A Hawley
Feb 2, 2019·Journal of Strength and Conditioning Research·Mohamed Nashrudin Bin NaharudinLewis J James

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