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Dr. Erik Dorf was the drug testing physician at the USA Pro Cycling Challenge race in Breckenridge. He tested a number of athletes using a urine sample. In an interview with VSO, Dr. Dorf discussed his work and responsibilities at the event: 

The testing is very specific with regard to who is tested, and what they are tested for.  The athletes tested for a cycling stage race include: 

  1. The winner of the stage:  Rohan Dennis.  Dennis took the Breck stage from Brent Bookwalter, and eventually won the overall on Sunday. 
  2. The overall leader of the race.  On Thursday, Rohan Dennis took both the stage, and snatched the overall from Bookwalter, so he was the only non-random athlete tested. 
  3. Two athletes chosen at random by the Anti-Doping committee. 

The United States Anti-Doping Association (USADA), the World Anti-Doping Association (WADA), and the UCI (Union Cycliste Internationale) work together to govern professional cycling in the United States and around the world.  Drugs that are tested fall into three main categories: 

  1. Performance enhancing substances like Steroids or Stimulants or Growth hormones.
  2. Drugs that present a health risk to the athlete, like Alcohol or Narcotics.
  3. Drugs that violate the spirit of the sport (a general category that covers all of the listed substances as well as things like Diuretics, or other drugs that may be used to cover up the use of a performance enhancing substance). 

Both Urine and blood testing are performed to look for specifically banned substances.  The WADA has also implemented a blood testing program called the Biologic Passport.  The biologic passport represents a series of blood tests, from a single athlete, collected over a period of time, both in season, and out of season.  These tests monitor physiologic parameters that are affected by banned substances in an effort to see if an athlete has been using performance enhancing drugs.

Dr. Erik Dorf (right) with two race volunteers