World Athletics said on Tuesday it had approved the introduction of a cheek swab test to determine if an athlete is biologically female.World Athletics is looking at cheek swab tests but is also considering using blood spot tests.

It remains unclear when the tests will begin but Coe says doing so is designed to maintain the "integrity of competition."

World Athletics has announced that it will begin genetic testing for all female track and field athletes in the future, according to the Washington Post. The new policy could have an impact on Olympic athletes in the near future.