Morago ga gore mokgahlo wa dipapadi wa International Association of Athletics Federations o tsebise molao wa gore baraloki ba makgarebe ba go kitima mokitimo/lebelo la 400m go ya godimo bao ba nago le ditestestorone tsa go ba godimo ba swanetse go fokotsa diteresterone, re nyaka go kwa gore naa ge re bolela ka di testosterone, re bobolela ka eng gona di ama bjang baraloki: Urologist, Dr Radzuma