Effects of Carbohydrate Beverage Ingestion on the Salivary IgA Response to Intermittent Exercise in the Heat

Neil Clarke, V. Sari-Sarraf, D. Doran, G. Atkinson, T. Reilly

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The purpose of this study was to establish if provision of CHO altered the mucosal immune and salivary cortisol responses to intermittent exercise in the heat. In a double-blind design, 10 males undertook soccer-specific intermittent exercise on a motorized treadmill on 2 occasions, each over 90 min and separated by 1 week. During CHO and placebo trials, subjects were given either a carbohydrate solution (3 ml · kg−1 body weight) or placebo drink, 5 min before the commencement of exercise, at 15, 30 min, at half time, 60 and 75 min into exercise. Salivary flow rate increased throughout the placebo trial and decreased throughout the CHO treatment; the difference between conditions neared statistical significance (P=0.055). Neither s-IgA concentration nor s-IgA to osmolality ratio was affected by 2 conditions or differed at any time-point post-exercise (P>0.05). The s-IgA secretion rate increased, s-IgA to protein ratio decreased post-exercise and salivary cortisol decreased 24 h post-exercise (P
    Original languageEnglish
    Pages (from-to)659-665
    JournalInternational Journal of Sports Medicine
    Volume32
    Issue number9
    DOIs
    Publication statusPublished - 2011

    Fingerprint

    Beverages
    Immunoglobulin A
    Eating
    Hot Temperature
    Carbohydrates
    Placebos
    Hydrocortisone
    Soccer
    Osmolar Concentration
    Body Weight
    Proteins
    Therapeutics

    Keywords

    • soccer-specific exercise
    • salivary IgA
    • cortisol
    • CHO

    Cite this

    Effects of Carbohydrate Beverage Ingestion on the Salivary IgA Response to Intermittent Exercise in the Heat. / Clarke, Neil; Sari-Sarraf, V.; Doran, D.; Atkinson, G.; Reilly, T.

    In: International Journal of Sports Medicine, Vol. 32, No. 9, 2011, p. 659-665.

    Research output: Contribution to journalArticle

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