Trend over time of mean variable scores.

<p>Solid lines represent the data on the first competitive race, while dashed lines represent the data on the second competitive race. The numbers on the horizontal axis indicate the assessment phase: 0 = 60 min before the race (salivary samples) or just before the race (visual attention and attention/mental flexibility tests); 1 to 4 = after each loop; 5 to 7 = 5 min, 15 min, and 60 min after the race. The first loop and the fourth loop are also marked by vertical-dotted lines. Cortisol and chromogranin A are expressed as ng/ml.