performance-enhancer

And while some claim that allowing for the use of performance-enhancing drugs would allow for greater medical oversight, which would mitigate the health risks posed to athletes, any such claim is contingent upon the assumption that the medically safe level of a performance-enhancer is the same as the level to yield the greatest performance gain.

James H. Hibbard: The Ripple Effect of Doping in Sports James H. Hibbard 2010

And while some claim that allowing for the use of performance-enhancing drugs would allow for greater medical oversight, which would mitigate the health risks posed to athletes, any such claim is contingent upon the assumption that the medically safe level of a performance-enhancer is the same as the level to yield the greatest performance gain.

James H. Hibbard: The Ripple Effect of Doping in Sports James H. Hibbard 2010

And while some claim that allowing for the use of performance-enhancing drugs would allow for greater medical oversight, which would mitigate the health risks posed to athletes, any such claim is contingent upon the assumption that the medically safe level of a performance-enhancer is the same as the level to yield the greatest performance gain.

James H. Hibbard: The Ripple Effect of Doping in Sports 2010

Discerning cyclists do not, as a rule, use anabolic steroids -- the performance-enhancer of choice among bodybuilders and wrestlers as well as baseball and football players.

The Sportsman's Daily: Suspiciously Beefed Up Cyclist with USA Development Team Suspended Pending Results of Drug Test 2009

It was merely a performance-enhancer to later be edited out.

Does Michael Myers Speak For the First Time in Halloween 2? Rob Zombie Denied. Today Confirms? | /Film 2009

Armstrong will keep a low profile during the Tour, partly to keep the focus on Discovery's riders but also out of some resentment for the way Tour officials — Leblanc in particular — were quick to accept allegations by L'Equipe, a French daily sports newspaper owned by the same company that owns and operates the Tour, that Armstrong used the performance-enhancer EPO in his first win in 1999.

Next stage for Armstrong presents another big climb 2006

Gamma Hydroxy Butyrate used to be sold in health food stores in the U.S. as a performance-enhancer for bodybuilders until it was banned in 1990.

CNN Transcript Nov 8, 2007 2007

Personally, I'm skeptical - but if it works, isn't it a performance-enhancer?

Forbes.com: News Matthew Herper 2011

And so a scout who last year seemed sure that Bautista was using some sort of performance-enhancer Monday sounded more ready to believe.

NY Daily News John Harper 2011

The revelations come as sport's highest legal body prepares to rule whether the three-time Tour winner should be banned for testing positive for the performance-enhancer clenbuterol or whether Spanish authorities were right to clear him.

SI.com 2012