Acute supplementation with an amino acid mixture suppressed the exercise-induced cortisol response in recreationally active healthy volunteers: a randomized, double-blinded, placebo-controlled crossover study

Figures & data

Fig. 1 Flowchart of the study participants

Table 1 Basic characteristics of the study subjects

Fig. 2 Effects of AA mixture supplementation on plasma cortisol, ACTH, and the cortisol/ACTH ratio. The levels of a plasma cortisol, b plasma ACTH, and c the cortisol/ACTH ratio before and after exercise are shown. In addition, the changes in d plasma cortisol, e plasma ACTH, and f the cortisol/ACTH ratio before and after exercise are shown. Values are the mean ± SEM or change score with 95% CI (n = 15). # p < 0.05, ## p < 0.01 compared to before exercise. * p < 0.05 compared to the placebo

Fig. 3 Correlations between the change in plasma cortisol and ACTH in the AA and placebo conditions

Table 2 Effects of the supplementation with the AA mixture on blood biological parameters

Availability of data and materials

The datasets used and/or analyzed in the current study are available from the corresponding author on reasonable request.