From: No effect of short-term amino acid supplementation on variables related to skeletal muscle damage in 100 km ultra-runners - a randomized controlled trial
Amino acids (n = 14)
Control (n = 14)
Age (years)
42.4 (9.1)
45.1 (6.1)
Body mass (kg)
72.1 (6.4)
75.1 (5.6)
Body height (m)
1.74 (0.06)
1.80 (0.06)
Body mass index (kg/m2)
23.5 (1.5)
22.9 (2.2)
Percent body fat (%)
14.1 (3.0)
16.0 (4.5)