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

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

		Before exercise	After exercise		Change between before and after exercise (95% CI)
Blood glucose (mg/dL)	AA	82.1 ± 2.4	76.1 ± 2.6	##	−6.1 (− 9.8, − 2.3)
Blood glucose (mg/dL)	Placebo	79.5 ± 2.0	73.8 ± 1.8	##	−5.7 (− 9.5, − 1.8)
Plasma lactate (mg/dL)	AA	9.3 ± 1.1	18.4 ± 2.2	##	9.1 (5.5, 12.6)
Plasma lactate (mg/dL)	Placebo	10.1 ± 1.3	17.5 ± 2.5	##	7.5 (2.3, 12.6)
Plasma ammonia (μg/dL)	AA	50.5 ± 3.6	104.4 ± 9.4	##	53.9 (31.8, 76.0)
Plasma ammonia (μg/dL)	Placebo	46.6 ± 2.2	99.7 ± 6.9	##	53.1 (39.9, 66.4)
Serum CPK (U/L)	AA	120.5 ± 8.2	140.3 ± 8.9	##	19.8 (15.7, 23.9)
Serum CPK (U/L)	Placebo	116.5 ± 9.2	136.3 ± 10.1	##	19.9 (15.5, 24.3)
Serum total ketone body (μmol/L)	AA	40.2 ± 5.3	145.9 ± 27.1	##	105.7 (50.3, 161.1)
Serum total ketone body (μmol/L)	Placebo	38.4 ± 4.8	161.0 ± 32.5	##	122.6 (51.9, 193.4)
Serum free fatty acid (mEq/L)	AA	0.26 ± 0.03	1.03 ± 0.08	##	0.77 (0.62, 0.93)
Serum free fatty acid (mEq/L)	Placebo	0.21 ± 0.03	1.02 ± 0.12	##	0.81 (0.57, 1.05)

Values are the mean ± SEM or change score with 95% CI (n = 15). ## p < 0.01 compared to before exercise

ISSN: 1550-2783