NDLI: Carbohydrate ingestion during exercise does not delay the onset of fatigue during submaximal cycle exercise.

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Carbohydrate ingestion during exercise does not delay the onset of fatigue during submaximal cycle exercise.

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Carbohydrate ingestion during exercise does not delay the onset of fatigue during submaximal cycle exercise.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lacerda, Ana Cristina R. Alecrim, Polyana Damasceno, Willian C. Gripp, Fernando Pinto, Kelerson Mc Silami-Garcia, Emerson
Description	Country affiliation: Brazil Author Affiliation: Lacerda AC ( Physiotherapy Department, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Brazil. lacerda.acr@ufvjm.edu.br)
Abstract	The objective of this study was to evaluate the effect of the ingestion of carbohydrate (CHO, in the form of maltodextrin) or placebo (PLAC, in the form of gelatin) on the physical performance of cyclists during submaximal exercise until fatigue on an ergometric cycle. Nine volunteers exercised on 2 separate occasions at least 2 days apart. On each occasion, after 48 hours of a balanced diet, they pedaled at approximately 66% Vo2peak until fatigue. Every 15 minutes, 150 mL of water and 18 capsules, containing either 0.5 g of CHO or PLAC (approximately 0.13 g x kg(-1) of body weight), were ingested in accordance with a double-blind, randomized protocol. The results show that after 40% of total exercise time, blood glucose levels in the CHO test returned to baseline levels. However, in the PLAC trial these levels failed to return to baseline levels, remaining lower than levels recorded in the CHO test after 60% of total exercise time. Despite these results, CHO ingestion failed to delay the onset of fatigue (CHO: 91.8 +/- 10.1 minutes vs. PLAC: 93.3 +/- 16.1 minutes; p = 0.87). In practical terms, coaches and trainers should consider that CHO ingestion in previously fed users does not delay the onset of fatigue during submaximal cycle exercise.
File Format	HTM / HTML
ISSN	10648011
Issue Number	4
Volume Number	23
e-ISSN	15334287
Journal	Journal of Strength and Conditioning Research
Language	English
Publisher	Lippincott Williams & Wilkins
Publisher Date	2009-07-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Sport Sciences Bicycling Physiology Exercise Fatigue Physical Endurance Polysaccharides Administration & Dosage Analysis Of Variance Blood Glucose Analysis Double-blind Method Etiology Prevention & Control Humans Monitoring, Physiologic Placebos Metabolism Young Adult Journal Article Randomized Controlled Trial Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science

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