• Anyone know how to estimate W'? And for any Golden Cheetah users, how does it calculate this? Just done a 20min test and it says my W' Expended (%) was 237 which makes me think it has woefully underestimated mine. In its model for this month it's 13.7kJ but in the past its been over 30?

  • It's it's any kind of help, I did a 20 min ftp and got these numbers
    Average Power (watts): 261
    Average Heart Rate (bpm): 171
    Total Work (kJ): 313
    Total W' Work (kJ): 20

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