Journal of Athletic EnhancementISSN: 2324-9080

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Changes in Salivary IgA and Salivary Cortisol Measurements during Ten Repeated Marathon Races

Changes in Salivary IgA and Salivary Cortisol Measurements during Ten Repeated Marathon Races

Study background: There has been little investigation into immune function and stress hormones during short-term, repeated ultra-endurance events. Our goal was to examine the effects of repeated ultra-endurance racing on Salivary IgA (sIgA) and Salivary Cortisol (sCortisol) levels. Six ultra-endurance athletes competed in a ‘ten marathon races in 10 days’ challenge. sIgA was measured prerace on each day. sCortisol measurements were taken pre and post race each day.

Conclusion: There was no evidence of a noticeable immunosuppressive response during the ten days of the event. Values for all immune function markers were similar or elevated when compared to previous findings, suggesting a possible compensation effect to protect the athlete from the acquisition
of infection. This should not detract from using strategies aimed at reducing the possibility of acquiring infection, particularly with regard to recovery, hygiene and maintenance of good health.

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