The synthetic glycoprotein hormone erythropoietin - best known as recombinant human erythropoietin (rHu–EPO) or epo - became widespread in endurance sports such as professional cycling in the beginning of the 1990s. In 2000, the World Anti–Doping Agency (WADA) implemented a test for epo, after which cyclists are said to have resorted to blood doping as an alternative for epo to boost their performances.
- Sport performance
- Professional road racing
- Archival data
- Progress in road cycling performance
- Time trial racing