| Race-day carbohydrate intakes of elite triathletes contesting olympic-distance triathlon events. | |
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MedLine Citation:
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PMID: 20739718 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to investigate the prerace and during-race carbohydrate intakes of elite-level triathletes contesting draft-legal Olympic-distance triathlon (ODT) events. Self-reported prerace and during-race nutrition data were collected at 3 separate ODT events from 51 elite senior and under-23 triathletes. One hundred twenty-nine observations of food and fluid intake representing actual prerace (n = 62) and during-race (n = 67) nutrition practices from 36 male and 15 female triathletes were used in the final analysis of this study. Female triathletes consumed significantly more carbohydrate on the morning before race start when corrected for body mass and race start time than their male counterparts (p < .05). Male and female triathletes consumed 26% more energy (kJ/kg) and 24% more carbohydrate (g/kg) when commencing a race after midday (1:00-1:30 p.m.) than for a late morning (11:00-11:15 a.m.) race start. During the race, triathletes consumed less than 60 g of carbohydrate on 66% of occasions, with average total race intakes of 48 ± 25 and 49 ± 25 g carbohydrate for men and women, respectively. Given average race times of 1:57:07 hr and 2:08:12 hr, hourly carbohydrate intakes were ~25 g and ~23 g for men and women, respectively. Although most elite ODT triathletes consume sufficient carbohydrate to meet recommended prerace carbohydrate intake guidelines, during-race carbohydrate intakes varied considerably, with many failing to meet recommended levels. |
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Authors:
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Gregory R Cox; Rodney J Snow; Louise M Burke |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: International journal of sport nutrition and exercise metabolism Volume: 20 ISSN: 1526-484X ISO Abbreviation: Int J Sport Nutr Exerc Metab Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-26 Completed Date: 2010-11-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100939812 Medline TA: Int J Sport Nutr Exerc Metab Country: United States |
Other Details:
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Languages: eng Pagination: 299-306 Citation Subset: IM |
Affiliation:
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Sports Nutrition, Australian Institute of Sport, Belconnen, ACT, Australia. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Bicycling / physiology Body Weight / physiology Dietary Carbohydrates / administration & dosage*, metabolism Drinking* Energy Intake / physiology Energy Metabolism / physiology* Female Humans Male Nutrition Policy Nutritional Physiological Phenomena / physiology* Nutritional Requirements Physical Endurance / physiology* Running / physiology Sex Factors Swimming / physiology Time Factors Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Dietary Carbohydrates |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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