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Habitual Physical Activity, Strenuous Exercise, and Salivary Immunoglobulin A Levels in Young Adults: The Amsterdam Growth and Health Study
14 March 2008 (online)
Secretory IgA (S-lgA) levels in stimulated salvia were measured before and after a maximal treadmill test in a population of 175 young adults (84 men, 91 women). Habitual physical activity levels of this population were measured by a standardized interview, and scores were obtained for the amount of time and intensity of sports activities and total activity.
Before the maximal treadmill test, men and women showed no statistically significant differences in the salivary concentrations of S-lgA, but the concentration of S-lgA in women decreased and in men increased statistically significantly (P < 0.05) after the treadmill test.
Only women showed a significant correlation between absolute values of S-lgA and the weekly amount of time spent on sports activity measured by a standardized interview expressed in minutes per week.
secretory IgA - stimulated saliva - strenuous exercise - habitual activity - young men and women