(CNN) It has been revealed that Christine Emboma and Beatrice Masillingi of Africa and Namibia will not be able to participate in the 400 meters of the Tokyo Olympics because their testosterone levels have exceeded the standard. The Namibian Olympic Committee and others have revealed. According to the World Athletics Federation, M’Boma and M’Boma are among the top five in the 400-meter world record this year. Exceeding the standard testosterone level was found during a medical evaluation requested by the World Athletics Federation. The World Athletics Federation requires female athletes to have testosterone levels no more than 5 nanomoles per liter to participate in some events, such as the 400 meters. In order for such athletes to participate in the competition, it is necessary to lower the testosterone level by treatment. The World Athletics Federation intends to ensure fair competition for these measures. However, both athletes are still eligible to participate in the 100 and 200 meters.