Is TSS a useful metric for mixed difficulty training?

Training
2

Just a few facts to put your comments in context:

  1. TSS = IF squared x 100 x duration (in hours). Point being, it increases NON-linearly with intensity. In fact, as shown in one of the last few slides here, TSS closely parallels perceived exertion (better than Banister’s TRIMP or Rusko’s EPOC scores, anyway):

  1. An IF of only 0.45 is extremely low…in fact, I’m not sure I personally could ride that easily without falling over.

  2. A challenging 1 h interval workout will have an IF of more than 0.9…occasionally, even over 1.05 (i.e., an NP buster).

How long have you actually been using a power meter?

ETA: Garmin’s “Training Load” is based on Rusko’s EPOC.

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