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

V. Sari-Sarraf, D. Doran, Neil Clarke, 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
Number of pages7
JournalInternational Journal of Sports Medicine
Volume32
Issue number9
DOIs
Publication statusPublished - 2011
Externally publishedYes

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

Bibliographical note

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

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. / Sari-Sarraf, V.; Doran, D.; Clarke, Neil; 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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N1 - Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

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