Table 2. ACE genotype distribution and allele frequencies of the athletes. Subjects N ACE genotype Allele frequency DD ID II D I AO (athletes overall) Male 34 15 (.54) 14 (.41) 5 (.15) .65 .35 Female 24 10 (.42) 9 (.37) 5 (.21) .60 .40 SDA (≤200m) Male 14 9 (.64) 5 (.36) 0 (.00) .82 .18 Female 8 4 (.50) 4 (.50) 0 (.00) .75 .25 MDA (≥400m) Male 20 6 (.30) 9 (.45) 5 (.25) .53 .47 Female 16 6 (.38) 5 (.31) 5 (.31) .53 .47