Figure 2.
Effects of the four experimental conditions (solid line)—control, moderate exercise (MOD), vigorous exercise (VIG), and psychological stress—on cortisol concentrations. (a) Temporal profile of cortisol increases. Data are the mean ± SE of the absolute values (ng/mL) of salivary cortisol. (b) Increases of cortisol at 0 min, 15 min, and 35 min after the end of the experimental conditions. Data are the mean ± SE of the absolute values (ng/mL) at these time points after the subtraction of the second baseline sample (−15 min). Number of subjects in parenthesis. * p < 0.05 compared to control after paired t test.