The “Warrior” COMT Val/Met Genotype Occurs in Greater Frequencies in Mixed Martial Arts Fighters Relative to Controls

Table 1. Participant Characteristics and Biomarkers. Data are expressed as the mean (±standard deviation).

Characteristics	MMA	Athlete	Non-Athlete
Age (years)	25(6)	23(4)	23(4)
Height (m)	1.84 (.06)	1.74 (.03)*	1.77 (.02)
Weight (kg)	88.6 (15.5)	75.3 (11.0)**	81.1 (12.8)*
Cortisol (Î¼g/dL)	.21 (.16)	.26 (.25)	.22 (.13)
sAA (U/mL)	112.1 (96.4)	110.0 (121.6)	126.3 (95.2)

* Indicates significantly different from MMA group at p< 0.05** Indicates significantly different from MMA group at p< 0.001