Progressive intervals through z3-5. 6 x 7' @100% FTP + aerobic work (optional) Threshold workouts are a staple of cycling training history. Your anaerobic threshold or FTP is one of the biggest determinants of cycling performance and therefore one of the most important metrics for you to train. These workouts will target your Threshold and help you increase your Functional Threshold Power (FTP) and anaerobic capacity through structured workouts. Threshold intervals are not maximum efforts unless they are extended to longer than 20 minutes. In order to get the most out of yourself and your training do your best to come into each workout fresh and focused. As the intensity increases over the course of your plan the intervals may start feeling less comfortable. But keep pushing focus on quality over quantity and the gains will come.