Perturbed energy balance and hydration status in ultra-endurance runners during a 24 h ultra-marathon

Ricardo J.S. Costa, Samantha K. Gill, Jo Hankey, Alice Wright, Slawomir Marczak

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    Abstract

    The present study aimed to assess the adequacy of energy, macronutrients and water intakes of ultra-endurance runners (UER) competing in a 24 h ultra-marathon (distance range: 122–208 km). The ad libitum food and fluid intakes of the UER (n 25) were recorded throughout the competition and analysed using dietary analysis software. Body mass (BM), urinary ketone presence, plasma osmolality (POsmol) and volume change were determined at pre- and post-competition time points. Data were analysed using appropriate t tests, with significance set at P
    Original languageEnglish
    Pages (from-to)428-437
    JournalBritish Journal of Nutrition
    Volume112
    Issue number3
    DOIs
    Publication statusPublished - Aug 2014

    Bibliographical note

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    Keywords

    • Carbohydrates
    • Gastrointestinal symptoms
    • Hydration
    • Running
    • Sleep deprivation

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