Within-Subject Correlation Between Salivary IgA and Measures of Training Load in Elite Football Players

Purpose : To quantify the association between salivary secretory immunoglobulin A (sIgA) and training load in elite football players. Methods : Data were obtained on 4 consecutive days during the preparation camp for the Rio 2016 Olympic Games. Saliva samples of 18 elite male football players were collected prior to breakfast. The session rating of perceived exertion (s-RPE) and external training-load metrics from global positioning systems...