Not sure if this will help, i watched this interesting podcast by TP…Building Fatigue Resistance Strategy Into Training - YouTube
Most of us keep on chasing higher FTPs but could be missing another aspect of being a faster cyclist. Being able to hold high power for a long period of time. The reality is that most of us cant hold our FTP for 1hr.
This clip discusses the idea of building fatigue resistance. The progress looks being able to increase the length of intervals. For example 1hr of SST might look like 4x15, 3x20, 2x30.
You might be at 4w/kg. That is super fast if you can hold that more than 1hr.
Love to hear your thoughts?