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Bill Osler
North Carolina
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Thanks for the response. What I am trying to figure out is this: I work in an office about 50-60 hours/week so training time is limited. A 4 hour ride at endurance pace (what many people seem to recommend) is a huge block of time. Assuming power of 60% of FTP for 4 hours that works out to a TSS of 144 if I did the math right. I can get the same TSS by riding at the Endurance/Tempo boundary (75% of FTP) for about 2.5 hours. Maintaining that power for that long would be hard but it's easier to find 2.5 hours than it is to find 4. Does that 2.5 hour ride yield the same aerobic benefit as the 4 hour ride? Or have I misunderstood something?
Toggle Commented Dec 6, 2016 on Early Base & Zone 2 Intensity at Joe Friel
I know that most coaches recommend spending a lot of time in Zone 2 during early base training with a goal of improving aerobic capacity prior to higher intensity training. However, when I look at information like the table of "Expected physiological/performance adaptations ..." at http://home.trainingpeaks.com/blog/article/power-training-levels it looks like the training response in Zone 3 is greater than the training response in Zone 2 for all listed categories. That makes me wonder why Zone 2 would be preferred during the early Base period. Am I missing something?
Toggle Commented Nov 14, 2016 on Early Base & Zone 2 Intensity at Joe Friel
I know this is an old thread but I'm not sure that thinking of TSS as work in the physics sense is meaningful. As an alternative I would suggest that TSS/100 is the number of hours one would have to ride at a power = FTP to achieve similar training effects. Of course it generally is not possible to ride over an hour at FTP but looking at TSS that way sheds some light on the intensity of the effort.
Toggle Commented Nov 13, 2016 on Oops! What Is TSS? at Joe Friel
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Nov 12, 2016