If carbohydrates are a main factor in fatigue then some sort of tracking mechanism to determine how long you can continue at a certain pace and possible to measure what your glycogen storage is. Just a thought.

Oh, also, what about some sort of tss/atl/ctl for the different regions of the quadrant analysis. So if you do a 100tss ride and 20% of it was spent in quadrant IV then quadrant IV gets 20tss points.

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