Which "Zone 2"? Comparing 7-Zone and 3-Zone Training Systems

OVERVIEW So many athletes are focused on training in Zone 2, but they don't realize "Zone 2" means different things depending on which training system you use. There is a 3-Zone system, a 5-Zone system, a 7-Zone system, and even more! Two of the most popular are 3-Zones, championed by researcher Dr. Stephen Seiler, and a 7-Zone system used by CTS and many other coaching groups. In Episode 241 of "The Time-Crunched Cyclist Podcast", Coach Adam Pulford answers a listener question about how an a...