You need to retest. TSS is a function of duration and intensity (which seems to put more emphasis on duration) and intensity is aligned to FTP. If your FTP has risen you will be achieving a falsely high TSS.
An early indication of FTP shift is when your HR is lower for a given power zone.
You need to retest. TSS is a function of duration and intensity (which seems to put more emphasis on duration) and intensity is aligned to FTP. If your FTP has risen you will be achieving a falsely high TSS.
An early indication of FTP shift is when your HR is lower for a given power zone.