Salivary IgA as a risk factor for upper respiratory infections in elite professional athletes by Vernon Neville, Michael Gleeson, Jonathan Folland

“…When an athlete did not have, or was not recovering from URI, a s-IgA value lower than 40% of their mean healthy s-IgA concentration indicated a one in two chance of contracting an URI within 3 wk. …”
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Effect of acute exercise and hypoxia on markers of systemic and mucosal immunity by Ida Svendsen, Erlend Hem, Michael Gleeson

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Factors influencing infection risk in endurance athletes by Ida S. Svendsen

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Effects of nutritional supplements on the immune function of athletes by Ayu S. Muhamad

“…However, 7 days kaloba supplementation (20 mg of the root extract) did not alter athletes immune response although prolonged moderate intensity exercise significantly decreased S-IgA secretion rate and concentration post-exercise with the values returning to baseline by 1 h post-exercise. …”
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Factors influencing the mucosal immune response to exercise by Judith E. Allgrove

“…In study 1 (Chapter 3) it was shown that a fed or fasted state 2 h prior to exercise had no effect on the s-IgA concentration or secretion rate during prolonged exercise. …”
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Long-haul northeast travel disrupts sleep and induces perceived fatigue in endurance athletes by Christopher J Stevens, Heidi R Thornton, Peter M Fowler, Christopher Esh, Lee Taylor

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Sex differences in immune variables and respiratory infection incidence in an athletic population by Michael Gleeson, Nicolette Bishop, Marta Oliveira, Tracey McCauley, Pedro Tauler

“…Saliva flow rates, IgA concentration and IgA secretion rates were significantly higher in males than females (all P < 0.01). …”
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