Originally Posted by
atwl77
But in the context of the graph... you can lump me in the "I'd like to see how you can ride 105% your FTP in one hour" group.
The graph is not implying anyone to ride at 105% FTP for 1 hour. The unit of the vertical axis is kCal per hour, however that does not mean you need to ride for 1 hour, just like riding at 20 mph can also be done for 30 minutes.