LAUSANNE, Switzerland (AP) _ The world cycling body said Monday it would appeal the Danish Doping Board's acquittal of cyclist Bo Hamburger of charges that he had used the banned endurance-building drug EPO.

The International Cycling Union said it would appeal to the Court of Arbitration for Sport.

The Danish board acquitted Hamburger in August, saying it found unreliable the results from the new test being used by the cyling union, which claims the procedure is a fast and reliable method of detecting EPO.

The decision was opposed by the Danish Cycling Union, which imposed a life ban on Hamburger despite his acquittal and asked that the case be taken to arbitration.

Hamburger was the first rider to test positive for EPO under a new system introduced in April. He was tested during the Fleche Wallone race in Liege, Belgium, on April 19.

Hamburger claims he never has used banned drugs.

Laboratory experts have criticized UCI's new testing method, saying lab results differ with too high a margin from test to test.