When my wife is doing Sweetspot we see every time that the heartrate in the last block is lower than in the first blocks…how is that possible and and how should we act upon it? Increase power or not?
For example. Yesterday see did 40+37min SST with 3min rest in between.
Avg power: 166 (92% FTP)
Avg hf: 167
Avg power: 167 (92% FTP)
Avg hf: 160