In a groundbreaking decision that showcases its commitment to athlete safety and integrity, the UCI (Union Cycliste Internationale) has announced a ban on the use of carbon monoxide rebreathing equipment in professional cycling. Set to take effect on February 10, 2025, this ruling comes on the heels of concerns raised about the potential health risks and ethical implications associated with the practice.

In recent years, some cycling teams have adopted this controversial technique to assess the haemoglobin levels in their riders' blood, both before and after altitude training sessions. While the intention behind its use was ostensibly to monitor performance and optimize training regimens, questions have been raised about the method's safety and effectiveness. The inhalation of carbon monoxide, a toxic gas, has never been without risks. As noted by the UCI, repeated exposure can lead to severe health issues, including:

• Lethargy
• Nausea
• Dizziness
• Confusion
• Cardiac rhythm complications, seizures, paralysis, or even loss of consciousness

Despite its potential risks, the technique is currently not classified as illegal by the World Anti-Doping Agency (WADA). Consequently, the UCI has requested that WADA adopt a clear stance on this contentious issue.

Additionally, the governing body clarified that the use of carbon monoxide rebreathing will still be permitted in medical facilities, provided that it is overseen by qualified medical professionals experienced in navigating the complexities of handling this hazardous gas for legitimate therapeutic purposes.

This decisive action by the UCI underscores a broader trend in sports towards prioritizing athlete welfare over performance enhancement techniques that could pose health risks. As cycling continues to evolve, the UCI's commitment to safeguarding the sport's integrity and the well-being of its athletes remains paramount.