The aim of this study was to determine the effects of prolonged exercise in hot conditions on
saliva IgA (s-IgA) responses in trained cyclists. On two occasions, in random order and
separated by 1 week, 12 male cyclists cycled for 2 h on a stationary ergometer at 62 (3)%
V̇ O 2 max [194 (4) W; mean (SEM)], on one occasion (HOT: 30.3° C, 76% RH) and on
another occasion (CONTROL: 20.4° C, 60% RH). Water was available ad-libitum. Venous
blood samples and 2-min whole unstimulated saliva samples were collected at pre, post and …

ABSTRACT WALSH, NP, NC BISHOP, J. BLACKWELL, SG WIERZBICKI, and JC
MONTAGUE. Salivary IgA response to prolonged exercise in a cold environment in trained
cyclists. Med. Sci. Sports Exerc., Vol. 34, No. 10, pp. 1632–1637, 2002. Purpose: The
purpose of the present study was to determine the effect of a prolonged bout of exercise in
freezing cold conditions on saliva immunoglobulin A (s-IgA) responses in endurance-trained
males. Methods: Using a randomized cross-over design, 15 trained male cyclists cycled for 2 …