title: Habitual physical activity, strenuous exercise, and salivary immunoglobulin A levels in young adults: the Amsterdam Growth and Health Study.
abstract: Secretory IgA (S-IgA) 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-IgA, but the concentration of S-IgA in women decreased and in men increased statistically significantly (P less than 0.05) after the treadmill test. Only women showed a significant correlation between absolute values of S-IgA and the weekly amount of time spent on sports activity measured by a standardized interview expressed in minutes per week.
authors.affiliation: Faculty of Human Movement Sciences, Free University of Amsterdam.
authors.forename: W J
authors.initials: WJ
authors.lastname: Schouten
authors.forename: R
authors.initials: R
authors.lastname: Verschuur
authors.forename: H C
authors.initials: HC
authors.lastname: Kemper
mesh_terms: D000328:Adult; D015444:Exercise; D005260:Female; D006801:Humans; D007071:Immunoglobulin A, Secretory / Q000378:metabolism*; D008297:Male; D010809:Physical Fitness; D011446:Prospective Studies; D012463:Saliva / Q000378:metabolism*; D012737:Sex Factors
chemical_list: D007071:Immunoglobulin A, Secretory